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Electronics Worksheet: Electricity and Energy

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

Answer key

  1. a bicycle dynamo
  2. a doorbell
  3. True
  4. uses electricity
  5. uses electricity
  6. electrical energy
  7. a room heater
  8. False
  9. a torch
  10. a siren
  11. a refrigerator
  12. a tube light
  13. a siren
  14. a wind turbine
  15. a power station
  16. movement
  17. a computer
  18. gives electricity
  19. movement energy
  20. False
  21. an electric iron
  22. sound
  23. electric current
  24. an exhaust fan
  25. False
  26. False
  27. sound
  28. a washing machine
  29. gives electricity
  30. sound
  31. light
  32. True
  33. an LED lamp
  34. movement energy
  35. a street light
  36. light
  37. True
  38. a solar panel
  39. light
  40. heat

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