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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 480 · 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 mainly makes sound? (a) a loudspeaker (b) an LED lamp (c) a night lamp (d) an exhaust fan
  2. 2.True or false: a night lamp mainly gives out light. (a) False (b) True
  3. 3.Which of these gives us electricity? (a) a television (b) a washing machine (c) a generator (d) a mobile phone
  4. 4.🔍 Which is the odd one out? (a) a night lamp (b) a torch (c) a street light (d) a siren
  5. 5.🔋 Does a bicycle dynamo give electricity or use electricity? (a) gives electricity (b) uses electricity
  6. 6.Which of these gives us electricity? (a) a washing machine (b) a mobile phone (c) a bicycle dynamo (d) a refrigerator
  7. 7.⚡ What does an electric toy car mainly change electricity into? (a) heat (b) sound (c) movement (d) light
  8. 8.Which of these mainly gives out heat? (a) a night lamp (b) an LED lamp (c) an electric kettle (d) an electric drill
  9. 9.True or false: an exhaust fan mainly gives out light. (a) True (b) False
  10. 10.True or false: an electric drill mainly makes movement. (a) False (b) True
  11. 11.Which of these gives us electricity? (a) a water pump (b) a television (c) a cell (d) a washing machine
  12. 12.⚡ What does a doorbell mainly change electricity into? (a) movement (b) light (c) sound (d) heat
  13. 13.🔍 Which is the odd one out? (a) a school bell (b) a doorbell (c) a siren (d) an electric toy car
  14. 14.⚡ A cell changes stored chemical energy into which kind of energy? (a) wind energy (b) electrical energy (c) nuclear energy (d) sound energy
  15. 15.True or false: an electric iron mainly gives out heat. (a) True (b) False
  16. 16.⚡ What does a loudspeaker mainly change electricity into? (a) movement (b) heat (c) sound (d) light
  17. 17.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) movement energy (b) light energy (c) sound energy (d) chemical energy
  18. 18.🔍 Which is the odd one out? (a) a street light (b) a siren (c) a buzzer (d) a doorbell
  19. 19.🔍 Which is the odd one out? (a) a school bell (b) a buzzer (c) a siren (d) a room heater
  20. 20.Which of these mainly makes sound? (a) a buzzer (b) a table fan (c) an exhaust fan (d) a room heater
  21. 21.🔋 Does an air conditioner give electricity or use electricity? (a) gives electricity (b) uses electricity
  22. 22.⚡ Which tiny particles drift along a metal wire to carry the current? (a) photons (b) electrons (c) dust particles (d) water drops
  23. 23.Which of these mainly makes sound? (a) a table fan (b) a street light (c) a mixer grinder (d) a doorbell
  24. 24.⚡ What does a mixer grinder mainly change electricity into? (a) sound (b) light (c) heat (d) movement
  25. 25.True or false: an LED lamp mainly gives out heat. (a) False (b) True
  26. 26.Which of these mainly gives out light? (a) a loudspeaker (b) a school bell (c) a torch (d) a siren
  27. 27.⚡ What does a rice cooker mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  28. 28.Which of these mainly gives out heat? (a) a loudspeaker (b) a night lamp (c) an electric drill (d) a water heater
  29. 29.⚡ What does a traffic signal mainly change electricity into? (a) heat (b) light (c) sound (d) movement
  30. 30.Which of these uses electricity? (a) a bicycle dynamo (b) a solar panel (c) a television (d) a wind turbine
  31. 31.True or false: a table fan mainly makes movement. (a) False (b) True
  32. 32.Which of these mainly makes movement? (a) a table fan (b) a toaster (c) a tube light (d) an LED lamp
  33. 33.🔋 Does a power station give electricity or use electricity? (a) gives electricity (b) uses electricity
  34. 34.Which of these mainly gives out heat? (a) a street light (b) a toaster (c) a buzzer (d) a torch
  35. 35.Which of these uses electricity? (a) a battery (b) a cell (c) a mobile phone (d) a power station
  36. 36.Which of these gives us electricity? (a) an air conditioner (b) a refrigerator (c) a battery (d) a computer
  37. 37.Which of these mainly gives out light? (a) a water heater (b) a toaster (c) a ceiling fan (d) a traffic signal
  38. 38.⚡ What do we call a flow of electric charge through a wire? (a) electric current (b) sound (c) a magnet (d) friction
  39. 39.⚡ A solar panel changes which kind of energy into electricity? (a) sound energy (b) light energy (c) chemical energy (d) wind energy
  40. 40.⚡ What does a torch mainly change electricity into? (a) movement (b) light (c) heat (d) sound

Answer key

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

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