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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 526 · 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 tiny particles drift along a metal wire to carry the current? (a) electrons (b) water drops (c) photons (d) dust particles
  2. 2.🔍 Which is the odd one out? (a) a school bell (b) a buzzer (c) a ceiling fan (d) a loudspeaker
  3. 3.⚡ What does a doorbell mainly change electricity into? (a) movement (b) heat (c) light (d) sound
  4. 4.⚡ What does a tube light mainly change electricity into? (a) movement (b) light (c) heat (d) sound
  5. 5.True or false: a doorbell mainly makes sound. (a) False (b) True
  6. 6.Which of these mainly gives out heat? (a) a siren (b) a torch (c) an exhaust fan (d) a rice cooker
  7. 7.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) light energy (b) movement energy (c) sound energy (d) chemical energy
  8. 8.True or false: an LED lamp mainly gives out heat. (a) True (b) False
  9. 9.⚡ What does a night lamp mainly change electricity into? (a) sound (b) heat (c) movement (d) light
  10. 10.Which of these mainly gives out heat? (a) a night lamp (b) an electric kettle (c) a loudspeaker (d) a torch
  11. 11.Which of these uses electricity? (a) a computer (b) a battery (c) a solar panel (d) a power station
  12. 12.True or false: a water heater mainly gives out heat. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) an electric iron (b) a school bell (c) a toaster (d) an electric kettle
  14. 14.🔍 Which is the odd one out? (a) a traffic signal (b) a loudspeaker (c) a doorbell (d) a siren
  15. 15.🔍 Which is the odd one out? (a) a loudspeaker (b) a buzzer (c) a siren (d) an LED lamp
  16. 16.Which of these gives us electricity? (a) a power station (b) an air conditioner (c) a mobile phone (d) a computer
  17. 17.Which of these gives us electricity? (a) a mobile phone (b) a washing machine (c) a television (d) a generator
  18. 18.🔍 Which is the odd one out? (a) a torch (b) a traffic signal (c) an LED lamp (d) a loudspeaker
  19. 19.True or false: a loudspeaker mainly makes sound. (a) False (b) True
  20. 20.Which of these mainly makes movement? (a) a loudspeaker (b) a night lamp (c) a tube light (d) an electric toy car
  21. 21.🔋 Does a cell give electricity or use electricity? (a) gives electricity (b) uses electricity
  22. 22.True or false: a rice cooker mainly gives out heat. (a) False (b) True
  23. 23.Which of these uses electricity? (a) a solar panel (b) a power station (c) a mobile phone (d) a cell
  24. 24.⚡ What do we call a flow of electric charge through a wire? (a) electric current (b) a magnet (c) sound (d) friction
  25. 25.⚡ What does an exhaust fan mainly change electricity into? (a) heat (b) sound (c) light (d) movement
  26. 26.Which of these mainly makes movement? (a) a rice cooker (b) a mixer grinder (c) a street light (d) a buzzer
  27. 27.🔍 Which is the odd one out? (a) a siren (b) a school bell (c) a loudspeaker (d) an electric iron
  28. 28.🔋 Does an air conditioner give electricity or use electricity? (a) gives electricity (b) uses electricity
  29. 29.Which of these mainly gives out light? (a) a traffic signal (b) a ceiling fan (c) an electric iron (d) a water heater
  30. 30.True or false: a street light mainly gives out heat. (a) False (b) True
  31. 31.⚡ What does a room heater mainly change electricity into? (a) light (b) heat (c) movement (d) sound
  32. 32.Which of these mainly gives out heat? (a) a table fan (b) a street light (c) a loudspeaker (d) an electric iron
  33. 33.🔋 Does a television give electricity or use electricity? (a) gives electricity (b) uses electricity
  34. 34.Which of these gives us electricity? (a) a solar panel (b) a computer (c) a refrigerator (d) an air conditioner
  35. 35.⚡ A solar panel changes which kind of energy into electricity? (a) wind energy (b) chemical energy (c) light energy (d) sound energy
  36. 36.True or false: a torch mainly gives out heat. (a) True (b) False
  37. 37.Which of these mainly makes sound? (a) a buzzer (b) a night lamp (c) a mixer grinder (d) an electric toy car
  38. 38.Which of these uses electricity? (a) a bicycle dynamo (b) an air conditioner (c) a cell (d) a solar panel
  39. 39.🔍 Which is the odd one out? (a) a doorbell (b) a rice cooker (c) an electric iron (d) a water heater
  40. 40.True or false: an LED lamp mainly gives out light. (a) False (b) True

Answer key

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

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