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Page 1

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Topic 1- Visible light and the solar system
1) Which model placed the earth at the centre of the universe? ______________
2) Which model placed the sun at the centre of the universe? __________________
3) The invention of which piece of equipment allowed people to see objects not visible to…

Page 2

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22) When particles move up and down but the energy transfers from left to right this is a ____________
wave.




23) Label the wave.
24) Which word describes the number of waves per second what are the units. __________ +___________
25) Which word describes half the height of the wave?…

Page 3

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Topic 2 ­ The EMS
1) What does EMS stand for? ______________ ________________ _______________
2) There is only 1 type of wave which is visible to humans in the EMS. What is it? __________________
3) William Herschel discovered Infrared. Briefly describe how he did it?
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4) Johann…

Page 4

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Topic 3 ­ Waves and the universe
1) The sun and its planets is known as the _________ __________
2) The system we live in is part of which galaxy? _________________
3) A Collection of stars grouped together is called a ______________
4) A collection of galaxies is…

Page 5

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Topic 4- Waves and Earth
1) What word describes the number of waves passing a point each second? ________________________
2) What type of waves are sound waves? ________________________
3) Between which 2 frequencies can humans normally hear? ____________ to ______________
4) Sounds with a frequency below the range above are…

Page 6

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27) How do Oil companies use Seismic waves to analyse the earth? ________________________________________
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28) Why is it important to be able to locate the position of an earthquake? ___________________________________
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29) Which wave travels fastest. P or S? ____________________
30) Which wave will reach the…

Page 7

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Topic 5- Generating and transmitting electricity
1)What is current? _________________________________________________________
2) What is Voltage? ________________________________________________________
3) The name for sources of energy which will not run out is ______________________________
4) Energy sources which will not last for ever are called ________________________________
5) What is the source of energy for each…

Page 8

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16) In a dynamo is it the magnet or the coil of wire which spins?
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17) What type of magnets to power stations use to produce such large voltages?
________________________
18) How would you make the DC current produced by a dynamo move in the opposite direction?…

Page 9

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31) What two values do you needs to calculate the payback time of an energy saving technique?
______________________________ + ________________________________________________
32) Appliance A has a Payback time of 34 years. Appliance B has a payback time of 2 years?
Which appliance is the most cost effective and why?
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Page 10

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19) Draw a sankey diagram for the following example. 200J Electrical energy input, 150 J Heat output, 25 J
Light output and 25 Sound output?

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