Question 1
Question
Which state does conduction occur in?
Question 2
Question
Do black, matt objects absorb better than light, shiny objects?
Question 3
Question
Condensation is faster if...?
Question 4
Question
Non-metals conduct better than metals?
Question 5
Question
In evaporation what happens to the overall energy and speed of the particles?
Answer
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Overall energy and speed of particles decreases as particles evaporate
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Overall energy and speed of particles stays the same as particles evaporate
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Overall energy and speed of particles increases as particles evaporate
Question 6
Question
Evaporation is the change of state from a liquid to gas?
Question 7
Question
In a vacuum flask, which two features are used to prevent conduction?
Question 8
Question
In a cold climate, do animals have large ears or small ears to prevent heat loss?
Question 9
Question
If the intial cost of loft insulation is £100 and the annual saving is £20, how many years will the payback time take?
Answer
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4 years
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200 years
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5 years
Question 10
Question
U-Values show how slow heat transfers through a material
Question 11
Question
Which two methods of insulation reduce heat transfer by conduction and convection
Answer
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Thick curtains
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Cavity wall insulation
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Hot water tank jacket
Question 12
Question
The principal of conservation of energy means that energy cannot be created or destroyed.
Question 13
Question
What is the efficiency of an energy-saving lightbulb that converts 60J of energy into 40J of light energy
Question 14
Question
Carbon dioxide can be 'captured' before it is released from burning fossil fuels and pumped into oil and gas fields beneath the sea.
Question 15
Question
What do transformers do when transferring electricity from the National Grid to consumers?
Question 16
Question
What two ways provide energy during peak demands of electricity?
Question 17
Question
Underground cables have a higher set-up cost than overhead cables but are less reliable and harder to access.
Question 18
Question
What is the order of the Electromagnetic spectrum?
Answer
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Radio, Microwaves Infra-red, Visible light, Ultraviolet, X-rays, Gamma rays.
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Microwaves, Visible light, Ultraviolet, X-rays, Radio, Gamma rays.
Question 19
Question
All waves travel at the same speed through a vacuum
Question 20
Question
Transverse waves are?
Question 21
Question
Longitudinal waves show areas of compression and rarefraction?
Question 22
Question
What is the formula for wave speed?
Question 23
Question
The angle of incidence is equal to the angle of reflection?
Question 24
Question
When waves diffract,, how big will the diffraction be if the gap is slightly wider than the wavelength?
Answer
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Diffracts only at edges.
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Little diffraction
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Maximum diffraction
Question 25
Question
Waves only defract if they meet a new medium at an angle
Question 26
Question
If a wave is travelling along the normal, the speed changes and the wave is defracted.