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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 843 · 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.Which of these mainly makes movement? (a) an electric iron (b) an LED lamp (c) a traffic signal (d) an electric toy car
  2. 2.⚡ What does a tube light mainly change electricity into? (a) heat (b) light (c) sound (d) movement
  3. 3.🔍 Which is the odd one out? (a) a school bell (b) an electric iron (c) a water heater (d) a toaster
  4. 4.True or false: a mixer grinder mainly makes movement. (a) False (b) True
  5. 5.⚡ What does a doorbell mainly change electricity into? (a) light (b) sound (c) movement (d) heat
  6. 6.⚡ A cell changes stored chemical energy into which kind of energy? (a) nuclear energy (b) wind energy (c) electrical energy (d) sound energy
  7. 7.True or false: a toaster mainly gives out heat. (a) False (b) True
  8. 8.Which of these mainly makes sound? (a) a water heater (b) a night lamp (c) a school bell (d) an electric kettle
  9. 9.True or false: an electric kettle mainly gives out heat. (a) False (b) True
  10. 10.🔋 Does a refrigerator give electricity or use electricity? (a) uses electricity (b) gives electricity
  11. 11.True or false: an electric toy car mainly gives out heat. (a) True (b) False
  12. 12.⚡ What does a ceiling fan mainly change electricity into? (a) movement (b) light (c) sound (d) heat
  13. 13.🔍 Which is the odd one out? (a) a buzzer (b) an LED lamp (c) a siren (d) a loudspeaker
  14. 14.Which of these mainly makes sound? (a) an electric toy car (b) a doorbell (c) an electric iron (d) a traffic signal
  15. 15.True or false: a tube light mainly gives out light. (a) True (b) False
  16. 16.True or false: a siren mainly makes sound. (a) True (b) False
  17. 17.⚡ What does a siren mainly change electricity into? (a) heat (b) light (c) sound (d) movement
  18. 18.Which of these gives us electricity? (a) an air conditioner (b) a television (c) a bicycle dynamo (d) a washing machine
  19. 19.Which of these gives us electricity? (a) a television (b) an air conditioner (c) a refrigerator (d) a generator
  20. 20.⚡ What does an LED lamp mainly change electricity into? (a) light (b) movement (c) sound (d) heat
  21. 21.🔍 Which is the odd one out? (a) a rice cooker (b) an electric iron (c) an exhaust fan (d) a room heater
  22. 22.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) movement energy (b) chemical energy (c) light energy (d) sound energy
  23. 23.True or false: a torch mainly gives out light. (a) False (b) True
  24. 24.Which of these mainly gives out light? (a) an electric iron (b) a street light (c) an electric toy car (d) a toaster
  25. 25.🔍 Which is the odd one out? (a) an electric toy car (b) a torch (c) a ceiling fan (d) an exhaust fan
  26. 26.Which of these uses electricity? (a) a mobile phone (b) a generator (c) a wind turbine (d) a cell
  27. 27.Which of these mainly gives out heat? (a) a buzzer (b) an LED lamp (c) a doorbell (d) an electric iron
  28. 28.Which of these mainly gives out heat? (a) a night lamp (b) a loudspeaker (c) a toaster (d) a siren
  29. 29.True or false: a doorbell mainly gives out light. (a) True (b) False
  30. 30.Which of these mainly gives out heat? (a) a loudspeaker (b) a room heater (c) a table fan (d) a tube light
  31. 31.🔋 Does a power station give electricity or use electricity? (a) gives electricity (b) uses electricity
  32. 32.⚡ Which tiny particles drift along a metal wire to carry the current? (a) photons (b) dust particles (c) water drops (d) electrons
  33. 33.🔍 Which is the odd one out? (a) an exhaust fan (b) an electric toy car (c) a buzzer (d) a ceiling fan
  34. 34.⚡ What does a rice cooker mainly change electricity into? (a) heat (b) movement (c) sound (d) light
  35. 35.🔍 Which is the odd one out? (a) a traffic signal (b) an LED lamp (c) a tube light (d) a water heater
  36. 36.Which of these mainly makes sound? (a) a torch (b) a siren (c) a tube light (d) a traffic signal
  37. 37.True or false: a night lamp mainly gives out light. (a) True (b) False
  38. 38.⚡ What do we call a flow of electric charge through a wire? (a) electric current (b) friction (c) a magnet (d) sound
  39. 39.⚡ A solar panel changes which kind of energy into electricity? (a) light energy (b) wind energy (c) chemical energy (d) sound energy
  40. 40.Which of these mainly gives out light? (a) a doorbell (b) a tube light (c) a rice cooker (d) an electric kettle

Answer key

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

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