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4th grade energy

4th grade (Year 5 in England) · 16 questions · Common Core: NGSS.4-PS3-1, NGSS.4-PS3-2, NGSS.4-PS3-4, NGSS.4-ESS3-1 · England: KS3 Physics: Energy (energy changes and transfers), KS4 Combined Science: Energy, KS3 Physics: Energy (fuels and energy resources)

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1
Question 1
Which energy store is most important here: a hot radiator?
- A. thermal (heat)
- B. gravitational potential (height)
- C. elastic potential (stretch or squash)
- D. chemical
2
Question 2
What is one environmental effect of using hydroelectric dam?
- A. makes no smoke but leaves dangerous waste that must be stored safely for a very long time
- B. can be noisy and change the look of the landscape, but release no smoke
- C. floods a valley and blocks fish swimming upriver
- D. covers a large area of land, but makes no fumes while running
3
Question 3
What is the main useful energy output of a hairdryer's heating coil?
- A. light
- B. sound
- C. heating (thermal)
- D. movement (kinetic)
4
Question 4
True or false? Light from the Sun carries energy to Earth.
- A. True
- B. False
5
Question 5
A ball rolled down a ramp from three different heights and hit a wooden block. Which release height gave the ball the most energy when it hit?
- A. low
- B. medium
- C. high
6
Question 6
Energy resources: which statement is NOT true?
- A. Nuclear power stations do not release carbon dioxide while generating electricity.
- B. Hydroelectric power uses falling water.
- C. Nuclear fuel is renewable.
- D. Coal, oil and gas are fossil fuels.
7
Question 7
Why do roads near schools have low speed limits?
- A. Speed does not change a car's energy.
- B. Slow cars use more fuel.
- C. Slower cars have less energy, so they stop more quickly and cause less harm if they crash.
- D. Fast cars are quieter.
8
Question 8
True or false? When objects collide, energy can be transferred between them.
- A. True
- B. False
9
Question 9
Which energy transfer does this example mainly show: your hands warming after clapping hard?
- A. sound
- B. heat
- C. motion of another object
10
Question 10
A wind-up toy car is wound up and let go. What happens to the energy?
- A. light → sound
- B. thermal → nuclear
- C. elastic potential → kinetic
- D. kinetic → chemical
11
Question 11
A solar-powered garden light glows at night. How did the energy get there?
- A. It makes energy from darkness.
- B. The Moon charged it.
- C. Sound from the garden powers it.
- D. Sunlight → solar panel → electric current → battery → light
12
Question 12
Which of these mainly has a thermal (heat) energy store?
- A. a spinning fan
- B. a stretched trampoline
- C. water behind a high dam
- D. a cup of hot tea
13
Question 13
What is a disadvantage of wind turbines?
- A. They do not generate electricity when there is no wind
- B. Wind will run out
- C. They release lots of carbon dioxide while working
- D. They burn coal
14
Question 14
Which device is mainly designed to give out light?
- A. an electric kettle
- B. a food blender
- C. a torch (flashlight)
- D. an electric fan
15
Question 15
Is this energy resource renewable or non-renewable: natural gas?
- A. renewable
- B. non-renewable
16
Question 16
How is energy moving here: a torch (flashlight) beam?
- A. light
- B. sound
- C. heat
- D. electric current

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Answer key: 4th grade energy

1. A. thermal (heat)
2. C. floods a valley and blocks fish swimming upriver
3. C. heating (thermal)
4. A. True
5. C. high
6. C. Nuclear fuel is renewable.
7. C. Slower cars have less energy, so they stop more quickly and cause less harm if they crash.
8. A. True
9. B. heat
10. C. elastic potential → kinetic
11. D. Sunlight → solar panel → electric current → battery → light
12. D. a cup of hot tea
13. A. They do not generate electricity when there is no wind
14. C. a torch (flashlight)
15. B. non-renewable
16. A. light