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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 203 · 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.⚡ What do we call a flow of electric charge through a wire? (a) friction (b) sound (c) a magnet (d) electric current
  2. 2.🔍 Which is the odd one out? (a) a rice cooker (b) a toaster (c) a ceiling fan (d) an electric iron
  3. 3.🔋 Does a refrigerator give electricity or use electricity? (a) gives electricity (b) uses electricity
  4. 4.⚡ Which tiny particles drift along a metal wire to carry the current? (a) photons (b) dust particles (c) electrons (d) water drops
  5. 5.⚡ What does a school bell mainly change electricity into? (a) light (b) sound (c) movement (d) heat
  6. 6.Which of these mainly makes movement? (a) a loudspeaker (b) an electric toy car (c) a rice cooker (d) a torch
  7. 7.⚡ A solar panel changes which kind of energy into electricity? (a) chemical energy (b) light energy (c) wind energy (d) sound energy
  8. 8.Which of these mainly makes sound? (a) an electric toy car (b) a street light (c) an electric iron (d) a loudspeaker
  9. 9.🔍 Which is the odd one out? (a) a mixer grinder (b) an LED lamp (c) a table fan (d) an exhaust fan
  10. 10.True or false: an LED lamp mainly gives out light. (a) True (b) False
  11. 11.⚡ What does a mixer grinder mainly change electricity into? (a) heat (b) sound (c) movement (d) light
  12. 12.🔋 Does a computer give electricity or use electricity? (a) uses electricity (b) gives electricity
  13. 13.Which of these gives us electricity? (a) a washing machine (b) a computer (c) a water pump (d) a cell
  14. 14.⚡ What does a siren mainly change electricity into? (a) movement (b) heat (c) sound (d) light
  15. 15.Which of these mainly gives out heat? (a) a ceiling fan (b) an electric drill (c) a street light (d) a rice cooker
  16. 16.Which of these uses electricity? (a) a battery (b) a television (c) a power station (d) a generator
  17. 17.⚡ What does an LED lamp mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  18. 18.⚡ What does a night lamp mainly change electricity into? (a) heat (b) light (c) sound (d) movement
  19. 19.🔋 Does a washing machine give electricity or use electricity? (a) gives electricity (b) uses electricity
  20. 20.Which of these mainly makes sound? (a) an LED lamp (b) an electric drill (c) a school bell (d) a ceiling fan
  21. 21.⚡ What does a street light mainly change electricity into? (a) sound (b) light (c) heat (d) movement
  22. 22.⚡ What does an exhaust fan mainly change electricity into? (a) sound (b) heat (c) light (d) movement
  23. 23.Which of these uses electricity? (a) a cell (b) a wind turbine (c) a solar panel (d) a mobile phone
  24. 24.🔍 Which is the odd one out? (a) a street light (b) a torch (c) a traffic signal (d) a buzzer
  25. 25.🔍 Which is the odd one out? (a) a toaster (b) a street light (c) a torch (d) a tube light
  26. 26.Which of these mainly makes movement? (a) a street light (b) a school bell (c) a room heater (d) a mixer grinder
  27. 27.True or false: a buzzer mainly makes sound. (a) False (b) True
  28. 28.True or false: a ceiling fan mainly makes movement. (a) False (b) True
  29. 29.🔋 Does a power station give electricity or use electricity? (a) gives electricity (b) uses electricity
  30. 30.True or false: a room heater mainly makes sound. (a) False (b) True
  31. 31.⚡ What does a water heater mainly change electricity into? (a) movement (b) heat (c) sound (d) light
  32. 32.Which of these mainly gives out heat? (a) a doorbell (b) a toaster (c) a torch (d) a traffic signal
  33. 33.True or false: a siren mainly makes sound. (a) False (b) True
  34. 34.True or false: a table fan mainly makes sound. (a) False (b) True
  35. 35.⚡ What does a room heater mainly change electricity into? (a) light (b) movement (c) heat (d) sound
  36. 36.True or false: an electric iron mainly gives out heat. (a) True (b) False
  37. 37.⚡ What does an electric iron mainly change electricity into? (a) light (b) movement (c) sound (d) heat
  38. 38.Which of these uses electricity? (a) a bicycle dynamo (b) a battery (c) a computer (d) a power station
  39. 39.Which of these mainly makes movement? (a) a rice cooker (b) an electric iron (c) a toaster (d) a ceiling fan
  40. 40.True or false: a school bell mainly gives out light. (a) True (b) False

Answer key

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

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