How devices transfer energy
4th grade (Year 5 in England) · 16 questions · Common Core: NGSS.4-PS3-2, NGSS.4-PS3-4 · England: KS3 Physics: Energy (energy changes and transfers)
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Question 1
What is the main useful energy output of a torch (flashlight)?
- A. light
- B. sound
- C. heating (thermal)
- D. movement (kinetic)
Question 2
Which energy is wasted by an old filament light bulb?
- A. chemical energy
- B. light
- C. thermal energy (heat)
- D. nuclear energy
Question 3
Which device is mainly designed to give out movement (kinetic)?
- A. a food blender
- B. an electric heater
- C. a hairdryer's heating coil
- D. a torch (flashlight)
Question 4
What is the main useful energy output of an electric fan?
- A. light
- B. sound
- C. heating (thermal)
- D. movement (kinetic)
Question 5
A wind-up toy car is wound up and let go. What happens to the energy?
- A. light → sound
- B. elastic potential → kinetic
- C. kinetic → chemical
- D. thermal → nuclear
Question 6
Which device is mainly designed to give out sound?
- A. a doorbell buzzer
- B. a hairdryer's heating coil
- C. a toaster
- D. a food blender
Question 7
What is the main useful energy output of a doorbell buzzer?
- A. light
- B. sound
- C. heating (thermal)
- D. movement (kinetic)
Question 8
A wind-up toy car is wound up and let go. What happens to the energy?
- A. kinetic → chemical
- B. thermal → nuclear
- C. light → sound
- D. elastic potential → kinetic
Question 9
Which device is mainly designed to give out movement (kinetic)?
- A. a torch (flashlight)
- B. a washing machine drum
- C. an electric heater
- D. a loudspeaker
Question 10
What is the main useful energy output of a doorbell buzzer?
- A. light
- B. sound
- C. heating (thermal)
- D. movement (kinetic)
Question 11
A battery-powered torch (flashlight) is switched on. Which list shows the energy transfer?
- A. kinetic → nuclear → light
- B. light → chemical → sound
- C. chemical → electrical → light (and some heat)
- D. sound → light
Question 12
Which device is mainly designed to give out heating (thermal)?
- A. an electric heater
- B. an electric toy car
- C. a food blender
- D. an LED lamp
Question 13
What is the main useful energy output of an electric fan?
- A. light
- B. sound
- C. heating (thermal)
- D. movement (kinetic)
Question 14
A wind-up toy car is wound up and let go. What happens to the energy?
- A. elastic potential → kinetic
- B. kinetic → chemical
- C. light → sound
- D. thermal → nuclear
Question 15
Which device is mainly designed to give out heating (thermal)?
- A. an electric heater
- B. headphones
- C. a loudspeaker
- D. an LED lamp
Question 16
What is the main useful energy output of an electric toy car?
- A. light
- B. sound
- C. heating (thermal)
- D. movement (kinetic)
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