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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 140 · 40 questions
TalentJR

Remember (What comes out?): Sources give electricity: cells, batteries, solar panels, generators, dynamos, power stations. Appliances use it and change it: light (torch, tube light), heat (iron, kettle, toaster), movement (fan, mixer, drill), sound (doorbell, buzzer, speaker). Ask: what comes out when it works? That is the energy it mainly gives.

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  1. 1.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) chemical energy (b) light energy (c) movement energy (d) sound energy
  2. 2.Which of these mainly makes sound? (a) a street light (b) an electric toy car (c) a toaster (d) a loudspeaker
  3. 3.🔍 Which is the odd one out? (a) a water heater (b) a toaster (c) an electric iron (d) a night lamp
  4. 4.⚡ What does an LED lamp mainly change electricity into? (a) heat (b) sound (c) movement (d) light
  5. 5.⚡ What does an electric toy car mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  6. 6.⚡ Which tiny particles drift along a metal wire to carry the current? (a) electrons (b) photons (c) water drops (d) dust particles
  7. 7.🔋 Does a water pump give electricity or use electricity? (a) gives electricity (b) uses electricity
  8. 8.⚡ A fan changes electrical energy mainly into which kind of energy? (a) movement energy (b) chemical energy (c) sound energy (d) light energy
  9. 9.🔍 Which is the odd one out? (a) a school bell (b) an electric drill (c) a loudspeaker (d) a doorbell
  10. 10.⚡ What do we call a flow of electric charge through a wire? (a) a magnet (b) sound (c) friction (d) electric current
  11. 11.Which of these mainly makes movement? (a) an electric toy car (b) a street light (c) a night lamp (d) a traffic signal
  12. 12.True or false: a water heater mainly gives out light. (a) False (b) True
  13. 13.Which of these gives us electricity? (a) an air conditioner (b) a battery (c) a television (d) a water pump
  14. 14.Which of these mainly gives out heat? (a) a mixer grinder (b) an electric iron (c) a school bell (d) a night lamp
  15. 15.Which of these gives us electricity? (a) a washing machine (b) a generator (c) an air conditioner (d) a water pump
  16. 16.Which of these mainly makes sound? (a) a mixer grinder (b) a water heater (c) a toaster (d) a doorbell
  17. 17.⚡ What does a mixer grinder mainly change electricity into? (a) sound (b) heat (c) light (d) movement
  18. 18.True or false: an electric iron mainly makes movement. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) a siren (b) a school bell (c) an exhaust fan (d) a buzzer
  20. 20.True or false: a traffic signal mainly gives out heat. (a) False (b) True
  21. 21.Which of these mainly gives out light? (a) a toaster (b) a school bell (c) a tube light (d) a buzzer
  22. 22.⚡ What does a torch mainly change electricity into? (a) light (b) sound (c) heat (d) movement
  23. 23.Which of these mainly makes sound? (a) an exhaust fan (b) a mixer grinder (c) an electric kettle (d) a school bell
  24. 24.🔍 Which is the odd one out? (a) a toaster (b) an electric kettle (c) an electric iron (d) a buzzer
  25. 25.True or false: an electric iron mainly gives out light. (a) False (b) True
  26. 26.🔋 Does a generator give electricity or use electricity? (a) uses electricity (b) gives electricity
  27. 27.🔍 Which is the odd one out? (a) a room heater (b) a ceiling fan (c) a rice cooker (d) a toaster
  28. 28.🔍 Which is the odd one out? (a) an electric kettle (b) a school bell (c) a rice cooker (d) a toaster
  29. 29.Which of these mainly gives out heat? (a) a table fan (b) a night lamp (c) a school bell (d) a toaster
  30. 30.⚡ What does a rice cooker mainly change electricity into? (a) light (b) movement (c) heat (d) sound
  31. 31.Which of these mainly makes sound? (a) a tube light (b) a buzzer (c) a table fan (d) a traffic signal
  32. 32.🔋 Does a washing machine give electricity or use electricity? (a) gives electricity (b) uses electricity
  33. 33.True or false: an LED lamp mainly gives out light. (a) True (b) False
  34. 34.True or false: an exhaust fan mainly gives out heat. (a) True (b) False
  35. 35.Which of these uses electricity? (a) a television (b) a cell (c) a bicycle dynamo (d) a battery
  36. 36.Which of these mainly makes movement? (a) a room heater (b) an LED lamp (c) a doorbell (d) an exhaust fan
  37. 37.Which of these uses electricity? (a) a solar panel (b) a wind turbine (c) a bicycle dynamo (d) a mobile phone
  38. 38.True or false: a loudspeaker mainly makes sound. (a) False (b) True
  39. 39.⚡ What does a room heater mainly change electricity into? (a) movement (b) heat (c) sound (d) light
  40. 40.⚡ What does an electric drill mainly change electricity into? (a) heat (b) sound (c) movement (d) light

Answer key

  1. movement energy
  2. a loudspeaker
  3. a night lamp
  4. light
  5. movement
  6. electrons
  7. uses electricity
  8. movement energy
  9. an electric drill
  10. electric current
  11. an electric toy car
  12. False
  13. a battery
  14. an electric iron
  15. a generator
  16. a doorbell
  17. movement
  18. False
  19. an exhaust fan
  20. False
  21. a tube light
  22. light
  23. a school bell
  24. a buzzer
  25. False
  26. gives electricity
  27. a ceiling fan
  28. a school bell
  29. a toaster
  30. heat
  31. a buzzer
  32. uses electricity
  33. True
  34. False
  35. a television
  36. an exhaust fan
  37. a mobile phone
  38. True
  39. heat
  40. movement

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