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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 21 · 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.

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

Answer key

  1. light
  2. electric current
  3. a mobile phone
  4. gives electricity
  5. movement energy
  6. a school bell
  7. a torch
  8. an electric toy car
  9. electrical energy
  10. a siren
  11. movement
  12. movement
  13. movement
  14. a washing machine
  15. a rice cooker
  16. a wind turbine
  17. a doorbell
  18. gives electricity
  19. False
  20. movement energy
  21. True
  22. electrons
  23. True
  24. a battery
  25. a water heater
  26. gives electricity
  27. light
  28. sound
  29. gives electricity
  30. a water pump
  31. a buzzer
  32. movement
  33. sound
  34. False
  35. an electric iron
  36. True
  37. a torch
  38. a toaster
  39. False
  40. a bicycle dynamo

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