Friday, October 4, 2013

PHYSICS LONG TERM LESSON PLAN FOR IGCSE


PARVEZ SIR 
01916618226





Edexcel IGCSE 2009 Science (Double Award) – 4SC0
Editable scheme of work
We are happy to provide this scheme of work for you to amend and adapt to suit your teaching purposes.

We hope you find this useful.
 

Practical support to help you deliver this Edexcel specification
Scheme of work
This scheme of work has been produced to help you implement this Edexcel specification. It is offered as an example of one possible model that you should feel free to adapt to meet your needs and is not intended to be in any way prescriptive. It is in editable Word format to make adaptation as easy as possible. (Please note: the single science specifications comprise two papers: Paper 1 assesses only content which is not in bold, and Paper 2 assesses all content including content in bold.)
Other course planning support
You will find other support for planning the course in the Teacher Support Materials. This is a free downloadable resource that you can access at www.edexcel.com/igcse2009
Teaching resource exemplars
The scheme of work contains suggestions for resources that you can use to support your teaching. These are suggestions only of material you may find useful and you are encouraged to use a wide range of resources that suit the needs of your students.
Other Edexcel teaching resources
·  Student Books – full colour textbooks matched to the specification.
·  ActiveBook – a digital copy of the Student Book in the back of every copy.
·  Double Award Student Guide – provides a complete guide to using the Edexcel IGCSE Biology, Chemistry and Physics Student Books to teach or study Science Double Award.
·  Revision Guides – help students prepare for their exams.
Further details can be found at http://www.pearsonschools.co.uk
Edexcel Subject Advisors
Edexcel has a team of specialist subject advisors available to help you with implementation of this specification. You can contact them by email or phone.
Telephone: 0844 576 0037
Edexcel additional support
Ask the Expert – puts you in direct email contact with over 200 of our senior subject experts.
Edexcel’s community forum – these message boards are designed to enable you to access peer-to-peer support from fellow Edexcel teaching and delivery staff in schools and colleges.

Health and safety
The practicals and experiments suggested within the Scheme of Work are those which we believe are not banned or restricted in any way and are still currently used in most schools and colleges.
The IGCSE encourages experimental work with the assessment of investigative skills being made in the written examinations.
We advise teachers and technicians to discuss the merits of the suggested practicals when deciding which to carry out and how they will be carried out. For example, will it be demonstrated by the teacher or technician, or conducted by students themselves either individually or in small groups, under the guidance and direction of the teacher.
You may have ideas for practical work which we have not suggested but would work equally well.
As in all practical work, a risk assessment is expected as part of good health and safety practice in all centres and we understand that many schools and colleges refer to the CLEAPSS service: http://www.cleapss.org.uk/ for guidance and support in conducting science practical work.

Websites
There are links to relevant websites in this scheme of work. In order to ensure that the links are up-to-date, that the links work, and that the sites are not inadvertently linked to sites that could be considered offensive, we also have made the links available on our website at www.pearsonhotlinks.co.uk. If you find that a link from the scheme of work no longer works, please go to the pearsonhotlinks site, where you can also report if a link needs fixing.  Search for this title Edexcel IGCSE Science Double Award or ISBN 9780435046774.


Edexcel IGCSE in Science (Double Award) (4SC0)
Physics
The number of guided learning hours required for this Double Award qualification is 240–280 for all three sciences (80–100 hours for each individual science). This equates to approximately 1.5 hours per week over 60 weeks (for each science) and reflects how centres will use time for practical activities differently. Guided Learning Hours are all the times when a teacher is present to give guidance.
Week
Content coverage
Learning outcomes
Exemplar activities
Exemplar resources
1
Section 1: Forces and motion
a) Units
b) Movement and position
Students will be assessed on their ability to:

1.1 use the following units: kilogram (kg), metre (m), metre/second (m/s), metre/second2 (m/s2), newton (N), second (s), newton per kilogram (N/kg).

1.2 understand and use distance–time graphs

1.3 recall and use the relationship between average speed, distance moved and
time: average speed = distance moved/time taken


Activities:
     Re-arrange formulae and convert different units, e.g. m/s to km/h, and carry out calculations.
     Plot and interpret distance–time graphs.
     Explain how to find the distance of a thunderstorm and why the method works.
     Explain how police speed cameras measure instantaneous and average speed.
     Research speed records for sports, escape speed for rockets, speed of sound in different gases.
Class practical:
     Determine average speed of cars/ bicycles on the road.
     Determine average speed of a ball bearing or toy car across the floor/table.
     Investigate how the slope of a ramp affects the average speed of a ball bearing travelling down the ramp.
Edexcel IGCSE Physics Student Book Pages 1–3, 10 and 57
Distance–time graphs: ActiveBook Page 3, animation

Longman Physics Homework for Edexcel IGCSE Pages 7 and 8

General links for materials for all physics topics:
2

Section 1: Forces and motion
b) Movement and position
Students will be assessed on their ability to:

1.4 recall and use the relationship between acceleration, velocity and time:
acceleration = change in velocity/time taken
a = (vu)/t

1.5 interpret velocity–time graphs

1.6 determine acceleration from the gradient of a velocity–time graph

1.7 determine the distance travelled from the area between a velocity–time graph and the time axis.
Activities:
     Plot and interpret velocity–time graphs.
Class practical:
     Construct velocity–time graphs for different situations.


Demonstration:
     Use of electronic timers and low friction tracks to measure velocity at two positions and the time between them, hence acceleration, or video of similar experiment.
     Use of data logger with position sensor and trolley or ball to display graphs immediately.
Edexcel IGCSE Physics Student Book Pages 3–9, 10 and 57
Velocity–time graphs: ActiveBook Page 7, animation

Longman Physics Homework for Edexcel IGCSE Page 9

3
Section 1: Forces and Motion
c) Forces, movement, shape and momentum
Students will be assessed on their ability to:

1.8 express a force as a push or pull of one body on another

1.9 identify various types of force (e.g. gravitational, electrostatic, etc.)

1.10 understand that friction is a force that opposes motion


Class practical:
     Investigate the forces required to slide blocks along different surfaces, with differing amounts of friction.

Edexcel IGCSE Physics Student Book Pages 12–18, 21 and 57

Longman Physics Homework for Edexcel IGCSE Pages 10 and 11

Video clips:
4
Section 1: Forces and motion
c) Forces, movement, shape and momentum
Students will be assessed on their ability to:

1.11 recall and use the relationship between unbalanced force, mass and acceleration: force = mass × acceleration
F = m × a
Class practical:
     Investigate the relationship between force, mass and acceleration.
     Investigate how the mass of an object affects its acceleration when subjected to a constant force (use margarine tub propelled by an elastic band).
Edexcel IGCSE Physics Student Book Pages 23–26, 33 and 57
Force, mass and acceleration: ActiveBook Page 25, animation

Longman Physics Homework for Edexcel IGCSE Pages 10, 11 and 13

Video clip:
5
Section 1: Forces and motion
c) Forces, movement, shape and momentum
Students will be assessed on their ability to:

1.12 recall and use the relationship between weight, mass and g: weight = mass × g
W = m × g

1.13 describe the forces acting on falling objects and explain why falling objects reach a terminal velocity
Class practical:
     Investigate terminal velocity, using cake cups or parachutes made from bin liners.
     Investigate the terminal velocity of ball bearing falling through oil or glycerol.
Demonstration:
     Show that a feather and coin fall at the same rate in an evacuated tube.

Edexcel IGCSE Physics Student Book Pages 29–31, 32 and 57

Longman Physics Homework for Edexcel IGCSE Page 15

Video clips:
6

Section 1: Forces and motion
c) Forces, movement, shape and momentum
Students will be assessed on their ability to:

1.14 describe the factors affecting vehicle stopping distance including speed, mass, road condition and reaction time


Activities:
     Use Highway Code to investigate stopping distances.
Class practical:
     Investigate the stopping distance of ball bearings or toy cars on different surfaces.

Edexcel IGCSE Physics Student Book Pages 26–28, 32 and 57
Hammer and feather dropping on the Moon: ActiveBook Page 28, video clip
Stopping distance: Page 26, animation
Terminal velocity: Page 30, animation

Longman Physics Homework for Edexcel IGCSE Pages 13 and 14

Video clips:
7

Section 1: Forces and motion
Consolidation and assessment
     Revision exercises
     Progress test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
8
Section 1: Forces and motion
c) Forces, movement, shape and momentum
Students will be assessed on their ability to:

1.15 recall and use the relationship between the moment of a force and its distance from the pivot:
moment = force × perpendicular distance from the pivot

1.16 recall that the weight of a body acts through its centre of gravity


Activities:
     Complete examples using moments formula.
     Discuss the moment exerted by steering wheels, handlebars, crowbars, screwdrivers to remove the lid from a tin of paint, and nutcrackers.
Class practical:
     Simple experiment with pivoted half-metre rule and small known masses to establish principle of moments.
     Create a seesaw weighing device.


Demonstration:
     Show how difficult it is to open a door as the force applied moves closer to the hinges.
Edexcel IGCSE Physics Student Book Pages 42–47, 48 and 57
Stability and toppling: ActiveBook Page 46, animation

Longman Physics Homework for Edexcel IGCSE Page 16

9

Section 1: Forces and motion
c) Forces, movement, shape and momentum
Students will be assessed on their ability to:

1.17 describe how extension varies with applied force for helical springs, metal wires and rubber bands

1.18 recall that the initial linear region of a force–extension graph is associated with Hooke’s law
Activities:
     Complete examples including calculations.
Class practical:
     Determination of the force–extension graphs for a metal and a helical spring by suspension of masses.
Edexcel IGCSE Physics Student Book Pages 18–20, 22 and 57

Longman Physics Homework for Edexcel IGCSE Page 12

10
Section 1: Forces and motion
c) Forces, movement, shape and momentum
Students will be assessed on their ability to:

1.19 associate elastic behaviour with the ability of a material to recover its original shape after the forces causing deformation have been removed.
Activities:
     Complete examples including calculations.
Class practical:
     Determination of the force–extension graphs for a rubber band by suspension of masses.
Demonstration:
     Stretch helical spring to show elastic deformation.
     Stretch warm strip of toffee to show plastic deformation.
     Load copper wire to breaking, showing plastic deformation, noting when copper starts to ‘neck’.
Longman Physics Homework for Edexcel IGCSE Page 12
11

Section 1: Forces and motion
d) Astronomy
Students will be assessed on their ability to:

1.20 recall that the moon orbits the Earth and that some planets also have moons

1.21 understand gravitational field strength, g, and recall that it is different on other planets and the moon from that on the Earth

1.22 explain that gravitational force:
     causes the planets to orbit the sun
     causes the moon and artificial satellites to orbit the Earth
     causes comets to orbit the sun

1.23 use the relationship between orbital speed, orbital radius and time period:
orbital speed = (2 × π × orbital radius)/time period
v = (2 × π × r)/t

1.24 describe how the orbit of a comet differs from that of a planet

1.25 recall that the solar system is part of the Milky Way galaxy:
     describe a galaxy as a large collection of billions of stars
     state that the universe is a large collection of billions of galaxies.
Activities:
     Complete examples including calculations.
     Research different comets.
Class practical:
     Use falling ball bearing to determine a value for g, dropping it from different heights.

Demonstration:
     Whirl a large bung attached to string around head in a horizontal circle. Get a student to note how many rotations the bung completes in 10 s. Repeat for a variety of orbit diameters.
Video clips:
     (a) Gravity and air resistance on the Moon
     (b) NASA scientists may have found a 1000 new planets

Edexcel IGCSE Physics Student Book Pages 49–55, 56 and 58
How Hubble works: ActiveBook Page 52, video clip
Ellipses and orbits: Page 49, animation



Video clips:
12
Section 1: Forces and motion

Consolidation and assessment
     Revision exercises
     End of Section test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
13
Section 2: Electricity
a) Units
b) Mains electricity
Students will be assessed on their ability to:

2.1 use the following units: ampere (A), coulomb (C), joule (J), ohm (Ω), second
(s), volt (V), watt (W).

2.2 recall the hazards of electricity including frayed cables, long cables, damaged plugs, water around sockets, and pushing metal objects into sockets

2.3 describe the uses of insulation, double insulation, earthing, fuses and circuit breakers in a range of domestic appliances

2.4 know some of the different ways in which electrical heating is used in a variety of
domestic contexts

2.5 understand that a current in a resistor results in the electrical transfer of energy and an increase in temperature
Class practical:
     Vary the p.d. (voltage) across a light bulb. Calculate the power of the bulb at different p.d.’s.
Demonstration:
     Look at barrel fuses and circuit breakers.
     Use wire wool as part of a circuit containing light bulbs to model a fuse.

Edexcel IGCSE Physics Student Book Pages 59–63, 65 and 89

Longman Physics Homework for Edexcel IGCSE Pages 17, 18 and 19

Video clips:

14
Section 2: Electricity
b) Mains electricity
Students will be assessed on their ability to:

2.6 recall and use the relationship:
power = current × voltage
P = I × V
and apply the relationship to the selection of appropriate fuses
Activities:
     Complete examples including calculations involving electrical power.
Class practical:
     Investigate the power consumption of low-voltage electrical items.
Edexcel IGCSE Physics Student Book Pages 63–64, 65 and 89

Longman Physics Homework for Edexcel IGCSE Page 19

15
Section 2: Electricity
b) Mains electricity
Students will be assessed on their ability to:

2.7 use the relationship between energy transferred, current, voltage and time:
energy transferred = current × voltage × time
E = I × V × t

2.8 recall that mains electricity is alternating current (a.c.) and understand the difference
between this and the direct current (d.c.) supplied by a cell or battery
     Look at the trace from a signal generator (a.c.) and a battery (d.c.), using a CRO.

Edexcel IGCSE Physics Student Book Pages 64, 65 and 89
Electrical energy: ActiveBook Page 64, animation

Longman Physics Homework for Edexcel IGCSE Page 19


16

Section 2: Electricity
c) Energy and potential difference in circuits

Students will be assessed on their ability to:

2.9 explain why a series or parallel circuit is more appropriate for particular applications, including domestic lighting

2.10 understand that the current in a series circuit depends on the applied
voltage and the number and nature of other components

2.11 describe how current varies with voltage in wires, resistors, metal filament lamps and diodes, and how this can be investigated experimentally

2.12 describe the qualitative effect of changing resistance on the current in a circuit

2.13 describe the qualitative variation of resistance of LDRs with illumination and of thermistors with temperature

2.14 know that lamps and LEDs can be used to indicate the presence of a current in a circuit
Activities:
     Complete examples including calculations.
Class practical:
     Determine the resistance of different arrangements of resistors of known resistance.
     Investigate how the resistance of a LDR varies with light intensity.
     Investigate how the resistance of a thermistor varies with temperature.
     Investigate how the resistance of a pressure sensor varies with pressure.
Demonstration:
     Use LED’s to show the passage of current through a circuit.
Video clip:
     (a) Series and parallel circuits.
Edexcel IGCSE Physics Student Book Pages 74–79 and 82–87, 80, 88 and 89
Using a LDR: ActiveBook Page 84, animation
Using a thermistor: Page 84, animation

Longman Physics Homework for Edexcel IGCSE Pages 22, 23, 24, 25 and 26


Video clip:
17
Section 2: Electricity
c) Energy and potential difference in circuits

Students will be assessed on their ability to:

2.15 recall and use the relationship between voltage, current and resistance:
voltage = current × resistance
V = I × R



Activities:
     Complete examples including calculations involving V = I × R.
Class practical:
     Plot voltage–current characteristic graphs for a wire, a resistor, a light bulb and a diode. Note that the gradient is equal to the resistance.
Demonstration:
     Use a camera flash to show how a relatively small charge produces a large current when discharged in a short length of time.
Edexcel IGCSE Physics Student Book Pages 82–87, 88 and 89

Longman Physics Homework for Edexcel IGCSE Pages 22, 23, 24, 25 and 26

Video clip:


18
Section 2: Electricity
c) Energy and potential difference in circuits
d) Electric charge

Students will be assessed on their ability to:

2.16 understand that current is the rate of flow of charge

2.17 recall and use the relationship between charge, current and time:
charge = current × time
Q = I × t

2.18 identify common materials which are electrical conductors or insulators,
including metals and plastics

2.19 recall that electric current in solid metallic conductors is a flow of negatively charged electrons

Activities:
     Complete examples including calculations involving Q = I × t.
     Research into dangers of electrostatic charges, e.g. when refuelling aircraft and tankers.
     Research uses of electrostatic charges.
     Discuss design of cables and use of insulation for safety.
Class practical:
     Use plastic rulers and pens charged by rubbing on a jersey to pick up tiny pieces of paper,
     Rub polythene and acetate rods to charge them and then see the effect on a stream of water from a tap.
     Investigate forces between charges.
Demonstration:
     Use a Wimshurst machine and a Van de Graaf generator to generate sparks and make hair stand on end.
Edexcel IGCSE Physics Student Book Pages 66–72, 74–75, 73, 88 and 89

Longman Physics Homework for Edexcel IGCSE Pages 20 and 21

Video clips:



19
Section 2: Electricity

Consolidation and assessment
     Revision exercises
     End of Section test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
20

Section 3: Waves
a) Units
b) Properties of waves

Students will be assessed on their ability to:

3.1 use the following units: degree (o), hertz (Hz), metre (m), metre/second (m/s), second (s).

3.2 describe longitudinal and transverse waves in ropes, springs and water where appropriate

3.3 state the meaning of amplitude, frequency, wavelength and period of a wave

3.4 recall that waves transfer energy and information without transferring
matter

3.5 recall and use the relationship between the speed, frequency and wavelength of a wave:
wave speed = frequency × wavelength
v = f × λ
Activities:
     Complete examples including calculations.
     Pupils label a diagram of a wave and use a ruler to measure amplitude and wavelength.
Demonstration:
     Show transverse and longitudinal waves using a slinky, changing frequency and identifying wavelength.
     Use a row of students to show a transverse wave (as a Mexican wave) and a longitudinal wave.
Video clip:
     (a) Transverse and longitudinal waves.

Edexcel IGCSE Physics Student Book Pages 91–94, 98 and 126

Longman Physics Homework for Edexcel IGCSE Pages 27 and 28

Video clip:


21

Section 3: Waves
b) Properties of waves
Students will be assessed on their ability to:

3.6 use the relationship between frequency and time period:
frequency = 1/time period
f = 1/T

3.7 use the above relationships in different contexts including sound waves and electromagnetic waves
Activities:
     Complete examples including calculations involving v = f × λ and f = 1/T for sound and electromagnetic waves.
Class practical:
     Investigate how the depth of a shallow tank affects the speed of waves generated by lifting the end of the tank.
Edexcel IGCSE Physics Student Book Pages 93–97, 98 and 126

Longman Physics Homework for Edexcel IGCSE Pages 27 and 28


22

Section 3: Waves
c) The electromagnetic spectrum

Students will be assessed on their ability to:

3.8 understand that light is part of a continuous electromagnetic spectrum which includes radio, microwave, infrared, visible, ultraviolet, x-ray and gamma ray radiations and that all these waves travel at the same speed in free space

3.9 recall the order of the electromagnetic spectrum in terms of decreasing wavelength
and increasing frequency, including the colours of the visible spectrum
Activities:
     Complete examples.
     Investigate the areas beyond the visible spectrum, such as the work of Herschel and Ritter in discovering IR and UV respectively.

Edexcel IGCSE Physics Student Book Pages 99–103, 106 and 126

Longman Physics Homework for Edexcel IGCSE Page 29

Video clips:
(d) UVA
23

Section 3: Waves
c) The electromagnetic spectrum

Students will be assessed on their ability to:

3.10 recall some of the uses of electromagnetic radiations, including:
     radio waves: broadcasting and communications
     microwaves: cooking and satellite transmissions
     infrared: heaters and night vision equipment
     visible light: optical fibres and photography
     ultraviolet: fluorescent lamps
     x-rays: observing the internal structure of objects and materials and medical applications
     gamma rays: sterilising food and medical equipment

3.11 recall the detrimental effects of excessive exposure of the human body to electromagnetic waves, including:
     microwaves: internal heating of body tissue
     infrared: skin burns
     ultraviolet: damage to surface cells and blindness
     gamma rays: cancer, mutation
Activities:
     Complete a poster of the electromagnetic spectrum or a poster dealing with one particular region of the spectrum.
     Investigate the absorption of light by translucent materials in order to simulate x-ray absorption.

Edexcel IGCSE Physics Student Book Pages 101–103, 106 and 126

Longman Physics Homework for Edexcel IGCSE Page 30

Video clip:


24

Section 3: Waves
d) Light and sound

Students will be assessed on their ability to:

3.12 recall that light waves are transverse waves which can be reflected and refracted

3.13 recall that the angle of incidence equals the angle of reflection

3.14 construct ray diagrams to illustrate the formation of a virtual image in a plane mirror
Activities:
     Complete examples involving ray diagrams and reflection.
Class practical:
     Use a plane mirror and ray box to measure a number of angles of incidence and corresponding angles of reflection. Plot graph of angle of reflection against angle of incidence.
Demonstration:
     Show the difference between real and virtual images.
Video clip:
     (a) Lateral inversion.
Edexcel IGCSE Physics Student Book Pages 107–108, 116 and 126

Longman Physics Homework for Edexcel IGCSE Pages 31 and 32

Video clip

25
Section 3: Waves
Consolidation and assessment
     Revision exercises
     Progress test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
26

Section 3: Waves
d) Light and sound

Students will be assessed on their ability to:

3.15 describe experiments to investigate the refraction of light, using rectangular blocks, semicircular blocks and triangular prisms

3.16 recall and use the relationship between refractive index, angle of incidence and angle of refraction: n = sin i/sin r

3.17 describe an experiment to determine the refractive index of glass, using a glass block
Activities:
     Complete examples including calculations involving n = sin i/sin r.
Class practical:
     Use rectangular glass or Perspex blocks to determine the angle of incidence and corresponding angle of refraction for a number of light rays. Plot a graph of angle of incidence against angle of refraction to obtain value of gradient (refractive index).
     Investigate models to show refraction, such as toy cars travelling into a region of sand.
     Investigate the behaviour of converging lenses, including real and virtual images.
Demonstration:
     Use an applet to show refraction.
     Demonstrate apparent depth of an ink spot seen through a measuring cylinder of water, apparent bending of a pencil in beaker of water.
     Show refraction through different prisms and water containing fluorescence.
Edexcel IGCSE Physics Student Book Pages 109–115, 116 and 126
Refraction of waves: ActiveBook Page 109, animation
Total internal reflection and optical fibres: refraction: Page 113, animation


Longman Physics Homework for Edexcel IGCSE Page 32

Refraction applet from Internet, e.g. walter-fendt

Video clip:


27

Section 3: Waves
d) Light and sound
Students will be assessed on their ability to:

3.18 describe the role of total internal reflection in transmitting information along optical fibres and in prisms

3.19 recall the meaning of critical angle c

3.20 recall and use the relationship between critical angle and refractive index: sin c = 1/n
Activities:
     Complete examples including calculations involving sin c = 1/n.
     Investigate the critical angle for Perspex/air or glass/air or water/air boundary.
Class practical:
     Use semi-circular blocks to determine critical angle and refractive index.
Demonstration:
     Use an applet to show total internal reflection.
Edexcel IGCSE Physics Pages 112–115, 116 and 126

Longman Physics Homework for Edexcel IGCSE Page 32


Video clips:

28
Section 3: Waves
d) Light and sound


Students will be assessed on their ability to:

3.21 recall that sound waves are longitudinal waves and how they can be reflected and refracted

3.22 recall that the frequency range for human hearing is 20 Hz – 20 000 Hz

3.23 describe how to measure the speed of sound in air
Activities:
     Complete examples including calculations of the type required to work out the speed of sound.
     Complete examples comparing different sound wave forms (loudest, quietest, highest pitch, etc.).
Class practical:
     Measure the speed of sound in air outside with the echo method, using a distant wall/high wall.
Demonstration:
     Use evacuated bell jar to show that sound needs a medium to travel through.
     Demonstrate the reflection of sound with cardboard tubes and a quiet source such as a ticking watch.
     Use a microphone and CRO to show the trace produced by various vibrating objects. Compare frequency of vibration with range of human hearing.
     Display signal generator traces on a CRO. Have a loudspeaker attached to link frequency with time period and loudness with amplitude of waves.
     Use musical instruments to demonstrate the loudness, quality and pitch of the sound produced.
     Measure the speed of sound in air indoors using a CRO.
Edexcel IGCSE Physics Pages 118–124, 125 and 126

Longman Physics Homework for Edexcel IGCSE Pages 33 and 34

Video clips:



29
Section 3: Waves
Consolidation and assessment
     Revision exercises
     End of Section test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
30
Section 4: Energy resources and energy transfer
a) Units
b) Energy transfer

Students will be assessed on their ability to:

4.1 use the following units: kilogram (kg), joule (J), metre (m), metre/second (m/s), metre/second2 (m/s2), newton (N), second (s), watt (W).

4.2 describe energy transfers involving the following forms of energy: thermal (heat), light, electrical, sound, kinetic, chemical, nuclear and potential (elastic and gravitational)

4.3 understand that energy is conserved
Activities:
     Discuss the energy conversions taking place with the use of various household devices, e.g. iron, television, microwave oven, etc.
     Carry out an energy audit of school.
Demonstration:
     Use an energy circus, showing different forms of energy being used by different devices (clockwork toys, candle, electric circuits driving bulb and motor, signal generator and speaker, microphone and CRO, bicycle dynamo, solar powered device, mass on spring, balloon to be blown up and released, etc.).
Edexcel IGCSE Physics Pages 127–130, 132 and 160

Longman Physics Homework for Edexcel IGCSE Pages 35 and 36

Video clips:

31
Section 4: Energy resources and energy transfer
b) Energy transfer

Students will be assessed on their ability to:

4.4 recall and use the relationship:
efficiency = useful energy output/total energy input

4.5 describe a variety of everyday and scientific devices and situations, explaining the fate of the input energy in terms of the above relationship, including their representation by Sankey diagrams
     Complete examples involving efficiency calculations.
     Research the efficiency of different electric devices including light bulbs.
     Draw Sankey diagrams for various household devices.

Edexcel IGCSE Physics Pages 130–131, 132 and 160
Thorpe Park rollercoaster: ActiveBook Page 129, video clip
Thorpe Park log flume: Page 129, video clip
Roller coaster: Page 129, animation
Efficiency and energy transfers: pendulum: Page 129, animation
32

Section 4: Energy resources and energy transfer
b) Energy transfer
Students will be assessed on their ability to:

4.6 recall that energy transfer may take place by conduction, convection and radiation

4.7 describe the role of convection in everyday phenomena

4.8 describe how insulation is used to reduce energy transfers from buildings and the human body
Activities:
     Design a beaker to keep a hot drink hot or cold drink cold, reducing heat transfer by all three methods.
     Pupils to research the reduction of energy loss from homes, to include roof insulation, cavity wall insulation, double glazing, draught excluders and carpets.
     Discuss El Niño and La Niña.
     Investigate how the nature of a surface affects the amount of energy radiated or absorbed.
Class practical:
     Compare heat loss from dull matt and shiny silver surfaces e.g. plotting a cooling curve for each, using a data logger.
     Compare the heat loss from boiling tubes with different insulation.

Demonstration:
     Observe convection currents in water with suitable dye.
     Compare the thermal conductivity of different materials.
     Compare the rate of absorption of thermal radiation by dull matt and shiny silver surfaces.
Edexcel IGCSE Physics Pages 133–140, 141 and 160

Land and sea breezes, ActiveBook Page 135, animation
The Hockerton Housing Project, ActiveBook Page 137, video clip
Reducing heat transfer in the Hockerton houses, ActiveBook Page 137, animation

Longman Physics Homework for Edexcel IGCSE Pages 37, 38, 39 and 40

Video clips:

33

Section 4: Energy resources and energy transfer
c) Work and power

Students will be assessed on their ability to:

4.9 recall and use the relationship between work, force and distance moved in the direction of the force:
work done = force × distance moved
W = F × d

4.10 understand that work done is equal to energy transferred
Activities:
     Complete examples including calculations on work done and energy transferred.
Class practical:
     Calculate work done in lifting masses and show that this is equivalent to GPE gained.
     Determine the efficiency of an electric motor lifting a load.
Edexcel IGCSE Physics Pages 142–145, 149 and 160

Longman Physics Homework for Edexcel IGCSE Page 41

34
Section 4: Energy resources and energy transfer
c) Work and power
Students will be assessed on their ability to:

4.11 recall and use the relationship:
gravitational potential energy =
mass × g × height
GPE = m × g × h
Activities:
     Complete examples including calculations of GPE.
Class practical:
     Investigate the loss of GPE of a bouncing ball, noting maximum height of ball following each bounce.
     Investigate factors affecting the height of rebound of bouncing balls.
     Drop ball bearings into suitable material to create craters; investigate how height of fall affects crater depth or diameter.
Edexcel IGCSE Physics Pages 144–147, 149 and 160

Longman Physics Homework for Edexcel IGCSE Page 41

Information sheet on crater creation: Make a Crater

Video clips:
35
Section 4: Energy resources and energy transfer
c) Work and power
Students will be assessed on their ability to:

4.12 recall and use the relationship:
kinetic energy = ½ × mass × speed2
KE = ½ × m × v2
Activities:
     Complete examples including calculations of KE.
Class practical:
     Use a toy car or air track to measure the kinetic energy of different masses travelling at different speeds.
Edexcel IGCSE Physics Pages 145–147, 149 and 160

Longman Physics Homework for Edexcel IGCSE Page 41
36

Section 4: Energy resources and energy transfer
c) Work and power
Students will be assessed on their ability to:

4.13 understand how conservation of energy produces a link between gravitational potential energy, kinetic energy and work


Activities:
     Complete examples including calculations.
Class practical:
     Investigate the conversion of KE to GPE using a ball bearing or toy car on a curved piece of plastic curtain track.
Edexcel IGCSE Physics Pages 146–147, 149 and 160

Longman Physics Homework for Edexcel IGCSE Page 41



37
Section 4: Energy resources and energy transfer
c) Work and power
Students will be assessed on their ability to:

4.14 describe power as the rate of transfer of energy or the rate of doing work

4.15 use the relationship between power, work done (energy transferred) and time taken:
power = work done / time taken
P = W/t
Activities:
     Complete examples including calculations.
Class practical:
     Determination of power generated by student climbing a flight of stairs, timing the ascent of a known vertical height.
     Investigate power by lifting objects of different weights.
Edexcel IGCSE Physics Pages 147–148, 149 and 160

Longman Physics Homework for Edexcel IGCSE Page 41

Video clip:

38

Section 4: Energy resources and energy transfer
d) Energy resources and electricity generation

Students will be assessed on their ability to:

4.16 understand the energy transfers involved in generating electricity using:
     wind
     water
     geothermal resources
     solar heating systems
     solar cells
     fossil fuels
     nuclear power
Activities:
     Make a presentation to explain a type of electricity generation.
     Discuss the benefits/drawbacks of nuclear power.
     Create a questionnaire about nuclear power.
     Research and list advantages and disadvantages of different renewable and non-renewable resources, in terms of cost, pollution, time to replace renewables and response time.
     Discuss pumped storage systems to meet sudden demand and use of off-peak electrical power.
Edexcel IGCSE Physics Pages 150–158, 159 and 160
Power station: ActiveBook Page 153, animation
Renewable energy: Page 153, animation

Longman Physics Homework for Edexcel IGCSE Pages 42 and 43

Video clips:
39
Section 4: Energy resources and energy transfer
Consolidation and assessment
     Revision exercises
     End of Section test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
40

Section 5: Solids, liquids and gases
a) Units
b) Density and pressure

Students will be assessed on their ability to:

5.1 use the following units: degrees Celsius (oC), kelvin (K), joule (J), kilogram (kg), kilogram/metre3 (kg/m3), metre (m), metre2 (m2 ), metre3 (m3),
metre/second (m/s), metre/second2 (m/s2), newton (N), pascal (Pa).

5.2 recall and use the relationship between density, mass and volume:
density = mass / volume
ρ = m/V

5.3 describe how to determine density using direct measurements of mass and volume


Activities:
     Complete examples including calculations.
Class practical:
     Determination of the (volume and) density of regularly and irregularly shaped objects
     Determination of the density of irregularly shaped objects that float in water.
     Find the mass and volume of Plasticine balls of different shapes and sizes. Plot a graph of mass against volume to determine the density (gradient).
Demonstration:
     Carefully place syrup, then water and then oil into a tall cylinder. The oil floats on the water which floats on the syrup. By lowering different materials into the cylinder, their densities can be compared to the different liquids.
Edexcel IGCSE Physics Pages 162–163, 168 and 178

Longman Physics Homework for Edexcel IGCSE Page 44
41

Section 5: Solids, liquids and gases
b) Density and pressure

Students will be assessed on their ability to:

5.4 recall and use the relationship between pressure, force and area:
pressure = force/area
p = F/A
Activities:
     Complete example including calculations.
     Discuss cases where large/small area affects pressure, e.g. carrying a carrier bag, carrying a parcel by string, using snow shoes, using large tyres on tractors, and why stiletto heels cause more damage to wooden floors than elephants.
Class practical:
     Make a water rocket.
     Find area of shoes using graph paper and weight to determine the pressure exerted on floor by each student.
Demonstration:
     Calculate the pressure exerted by a brick while resting on different faces.
Edexcel IGCSE Physics Pages 164, 168 and 178
Gas pressure: ActiveBook Page 173, animation
Particles in a gas: Page 174, animation

Longman Physics Homework for Edexcel IGCSE Pages 44 and 45

Video clips:

42
Section 5: Solids, liquids and gases
b) Density and pressure

Students will be assessed on their ability to:

5.5 understand that the pressure at a point in a gas or liquid which is at rest acts equally in all directions

5.6 recall and use the relationship for pressure difference:
pressure difference = height × density × g
p = h ×ρ × g
Activities:
     Complete examples including calculations.
     Discuss the use of a mercury barometer and how much taller it would be if water was used instead of mercury.
     Calculate thickness of atmosphere.
Demonstration:
     Stab holes in a plastic carrier bag and fill with water, to show water leaving in all directions.
     Allow atmospheric pressure to crush an evacuated can.
Edexcel IGCSE Physics Pages 165–167, 168 and 178

Video clips:


43
Section 5: Solids, liquids and gases
Consolidation and assessment
     Revision exercises
     Progress test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
44

Section 5: Solids, liquids and gases
d) Ideal gas molecules

Students will be assessed on their ability to:

5.7 understand the significance of Brownian motion

5.8 recall that molecules in a gas have a random motion and that they exert a force and hence a pressure on the walls of the container
Activities:
     Complete examples regarding particles in the three states of matter.
Demonstration:
     Observe Brownian motion using a microscope and glass cell lamp.

Edexcel IGCSE Physics Pages 170–171, 176 and 178

Longman Physics Homework for Edexcel IGCSE Page 45

Video clip:
45

Section 5: Solids, liquids and gases
d) Ideal gas molecules
Students will be assessed on their ability to:

5.9 understand that there is an absolute zero of temperature which is −273°C

5.10 describe the Kelvin scale of temperature and be able to convert between the Kelvin and Celsius scales

Activities:
     Complete examples involving the conversion of temperatures in °C into temperatures in K.
Class practical:
     Record data for length of air column in capillary tube at different temperatures. Plot column length against temperature and extrapolate to determine absolute zero temperature.


Edexcel IGCSE Physics Pages 173−175, 176 and 178
46


Section 5: Solids, liquids and gases
d) Ideal gas molecules
Students will be assessed on their ability to:

5.11 understand that an increase in temperature results in an increase in the average speed of gas molecules

5.12 describe the qualitative relationship between pressure and Kelvin temperature for a gas in a sealed container

5.13 use the relationship between the pressure and volume of a fixed mass of gas at constant temperature:
p1 × V1 = p2 × V2
Activities:
     Complete examples including calculations.
     Graph-plotting exercise with data provided.
Demonstration:
     Use simulation to show changing conditions of a gas.
     Boiled egg sucked into a bottle as temperature of air in bottle is decreased.
Edexcel IGCSE Physics Pages 171–175, 176 and 178

Longman Physics Homework for Edexcel IGCSE Page 45


47
Section 5: Solids, liquids and gases
Consolidation and assessment
     Revision exercises
     End of Section test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
48

Section 6: Magnetism and electromagnetism
a) Units
b) Magnetism


Students will be assessed on their ability to:

6.1 use the following units: ampere (A), volt (V), watt (W).

6.2 understand the term ‘magnetic field line’

6.3 sketch and recognise the magnetic field pattern for a permanent bar magnet and that between two bar magnets

6.4 know how to use two permanent magnets to produce a uniform magnetic field pattern.
Class practical:
     Make a magnet by stroking a nail with a permanent magnet.
     Investigate and draw magnet field lines around a bar magnet and between two magnets, using iron filings.
Demonstration:
     Show magnetic repulsion/attraction between magnets.
     Show magnetic field lines around magnets, using iron filings.
Edexcel IGCSE Physics Pages 179–181, 186 and 197

Longman Physics Homework for Edexcel IGCSE Page 46

Video clips:


49

Section 6: Magnetism and electromagnetism
c) Electromagnetism

Students will be assessed on their ability to:

6.5 recall that an electric current in a conductor produces a magnetic field round it

6.6 recall that a force is exerted on a current-carrying wire in a magnetic field, and how this effect is applied in simple d.c. electric motors and loudspeakers



Activities:
     Complete examples describing the shape of magnetic fields around conductors.
     Discuss the benefits of electromagnets over permanent magnets.
Class practical:
     Use iron filings or plotting compasses and a straight wire, a flat circular coil and a solenoid to determine the magnetic field shape when each is carrying a current.
     Make electromagnets and compare their strength (how many paper clips are picked up) when the number of turns or current is changed.
Demonstration:
     Show the use of very strong electromagnets.
Edexcel IGCSE Physics Pages 182–185, 187–189, 196 and 197
How a simple electric motor works: ActiveBook Page 189, animation

Longman Physics Homework for Edexcel IGCSE Pages 46 and 47


Video clip:

50
Section 6: Magnetism and electromagnetism
c) Electromagnetism
Students will be assessed on their ability to:

6.7 use the left hand rule to predict the direction of the resulting force when a wire carries a current perpendicular to a magnetic field

6.8 recall that the force on a current-carrying conductor in a magnetic field increases with the strength of the field and with the current.
Activities:
     Complete examples showing the direction of movement of conductors in different magnetic fields.
Class practical:
     Make a model loud speaker
     Make a model motor.
Demonstration:
     Show the movement of a piece of current carrying aluminium when located in a magnetic field.
     Watch applet showing the motor effect.
Edexcel IGCSE Physics Pages 187–189, 195 and 197

Longman Physics Homework for Edexcel IGCSE Page 48

Electric motor applet from Internet e.g. walter-fendt

Video clip:
51
Section 6: Magnetism and electromagnetism
d) Electromagnetic induction

Students will be assessed on their ability to:

6.9 recall that a voltage is induced in a conductor or a coil when it moves through a magnetic field or when a magnetic field changes through it; also recall the factors which affect the size of the induced voltage

6.10 describe the generation of electricity by the rotation of a magnet within a coil of wire and of a coil of wire within a magnetic field; also recall the factors which affect the size of the induced voltage


Activities:
     Plunge a bar magnet into a coil of wire connected to a galvanometer. Observe that the induced EMF depends on the rate of plunging.
Class practical:
     Use a motor as a generator.
     Investigate factors affecting the generation of electric current by induction.
Demonstration:
     Show the production of an induced EMF by moving wire in a magnetic field.
     Watch applet showing electromagnetic induction.

     Watch applet showing the generation of electricity.
     Use a dynamo attached to a CRO and lamp to demonstrate the generation of electrical energy.
     Look at the structure of a transformer, with laminated core, thick wire coils, etc.
     Show how the same transformer can be used as a step-up transformer or a step-down transformer when used in reverse.
Edexcel IGCSE Physics Pages 189–194, 195 and 197
Electromagnetic induction: ActiveBook Page 190, animation
Increasing the size of an electric current: Page 190, animation
Making a dynamo: Page 192, animation

Longman Physics Homework for Edexcel IGCSE Page 48


Video clip:


52

Section 6: Magnetism and electromagnetism
Consolidation and assessment
     Revision exercises
     End of Section test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide
53
Section 7: Radioactivity and particles
a) Units
b) Radioactivity



Students will be assessed on their ability to:

7.1 use the following units: becquerel (Bq), centimetre (cm), hour (h), minute (min), second (s)

7.2 describe the structure of an atom in terms of protons, neutrons and electrons and use symbols such as 146C to describe particular nuclei

7.3 understand the terms atomic (proton) number, mass (nucleon) number and isotope
Activities:
     Complete examples including calculations to determine the number of electrons, protons and neutrons in various atoms.

Edexcel IGCSE Physics Pages 199–202, 207 and 232
Protons and neutrons: ActiveBook Page 201, animation

Longman Physics Homework for Edexcel IGCSE Page 50


54
Section 7: Radioactivity and particles
b) Radioactivity



Students will be assessed on their ability to:

7.4 understand that alpha and beta particles and gamma rays are ionising radiations emitted from unstable nuclei in a random process

7.5 describe the nature of alpha and beta particles and gamma rays and recall that they may be distinguished in terms of penetrating power
Activities:
     Complete examples including balancing equations involving alpha, beta and gamma emission.
Demonstration:
     Watch applet of alpha and beta decay.
Edexcel IGCSE Physics Pages 202–206, 207 and 232

Longman Physics Homework for Edexcel IGCSE Page 50


Video clips:
55
Section 7: Radioactivity and particles
b) Radioactivity
Students will be assessed on their ability to:

7.6 describe the effects on the atomic and mass numbers of a nucleus of the emission of each of the three main types of radiation

7.7 understand how to complete balanced nuclear equations

7.8 understand that ionising radiations can be detected using a photographic film or a Geiger–Müller detector

7.9 recall the sources of background radiation
Activities:
     Balance examples of nuclear equations.
Class practical:
     Use coins or dice to simulate radioactive decay.
Demonstration:
     Watch applet showing the radioactive decay of a sample.
     Use a Geiger–Müller detector to detect background radiation.
     Demonstrate the penetrating power of ionising radiation using radioactive sources, Geiger–Müller tube, lead sheet, thin aluminium sheet and paper.
Edexcel IGCSE Physics Pages 202–204, 207, 209–212, 215 and 232

Longman Physics Homework for Edexcel IGCSE Pages 50 and 52
56
Section 7: Radioactivity and particles
b) Radioactivity
Students will be assessed on their ability to:

7.10 understand that the activity of a radioactive source decreases over a period of time and is measured in becquerels

7.11 understand the term ‘half-life’ and understand that it is different for different radioactive isotopes

7.12 use the concept of half-life to carry out simple calculations on activity
Activities:
     Complete half-life calculations.
     Use software to determine half-life of various sources.
     Play radioactive dating game using simulation.
Radiation and half-live: ActiveBook Page 213, video clip

Longman Physics Homework for Edexcel IGCSE Page 53


Video clip:
57

Section 7: Radioactivity and particles
b) Radioactivity
Students will be assessed on their ability to:

7.13 describe the uses of radioactivity in medical and non-medical tracers, in radiotherapy, and in the radioactive dating of archaeological specimens and rocks


7.14 describe the dangers of ionising radiations, including:
     radiation can cause mutations in living organisms
     radiation can damage cells and tissue
     the problems arising in the disposal of radioactive waste.

Activities:
     Complete examples involving the use of radioactive dating.
     Research the Shroud of Turin.

Edexcel IGCSE Physics Pages 216–223, 224 and 232
Gamma camera: ActiveBook Page 216, animation

Longman Physics Homework for Edexcel IGCSE Page 51

Video clip:
58
Section 7: Radioactivity and particles
c) Particles

Students will be assessed on their ability to:

7.15 describe the results of Geiger and Marsden’s experiments with gold foil and alpha particles

7.16 describe Rutherford’s nuclear model of the atom and how it accounts for the results of Geiger and Marsden’s experiment and understand the factors (charge and speed) which affect the deflection of alpha particles by a nucleus

Activities:
     Complete examples on Rutherford scattering, including past IGCSE questions.
Demonstration:
     Watch applet showing Rutherford scattering.

Edexcel IGCSE Physics Pages 227–228, 231 and 232
Rutherford–Geiger–Marsden experiment: ActiveBook Page 227, animation

Longman Physics Homework for Edexcel IGCSE Page 55

Video clip:
59

Section 7: Radioactivity and particles
c) Particles
Students will be assessed on their ability to:

7.17 understand that a nucleus of U-235 can be split (the process of fission) by collision with a neutron, and that this process releases energy in the form of kinetic energy of the fission products

7.18
recall that the fission of U-235 produces two daughter nuclei and a small number of neutrons

7.19 understand that a chain reaction can be set up if the neutrons produced by one fission strike other U-235 nuclei


7.20 understand the role played by the control rods and moderator when the fission process is used as an energy source to generate electricity
Activities:
     Balance fission equations.
Demonstration:
     Watch applet showing nuclear fission.

Edexcel IGCSE Physics Pages 228–230, 231 and 232
Fission and fusion: ActiveBook Page 229, animation

Longman Physics Homework for Edexcel IGCSE Pages 54 and 55


Video clip:
60

Section 7: Radioactivity and particles
Consolidation and assessment
     Revision exercises
     End of Unit test
Edexcel IGCSE Physics Student Book end of chapter checklists
Edexcel IGCSE Physics Revision Guide


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