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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 620 · 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 gives us electricity? (a) a wind turbine (b) a mobile phone (c) a washing machine (d) a computer
  2. 2.⚡ What does a room heater mainly change electricity into? (a) light (b) heat (c) movement (d) sound
  3. 3.Which of these gives us electricity? (a) a television (b) a washing machine (c) a refrigerator (d) a battery
  4. 4.True or false: a night lamp mainly makes movement. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) an electric iron (b) a school bell (c) a buzzer (d) a loudspeaker
  6. 6.True or false: a siren mainly makes sound. (a) True (b) False
  7. 7.True or false: a torch mainly makes sound. (a) False (b) True
  8. 8.⚡ Which tiny particles drift along a metal wire to carry the current? (a) photons (b) dust particles (c) water drops (d) electrons
  9. 9.🔋 Does a solar panel give electricity or use electricity? (a) gives electricity (b) uses electricity
  10. 10.🔍 Which is the odd one out? (a) a table fan (b) a mixer grinder (c) an electric toy car (d) a rice cooker
  11. 11.🔋 Does a bicycle dynamo give electricity or use electricity? (a) uses electricity (b) gives electricity
  12. 12.⚡ What does a table fan mainly change electricity into? (a) movement (b) sound (c) light (d) heat
  13. 13.Which of these mainly makes movement? (a) an LED lamp (b) a street light (c) a traffic signal (d) a table fan
  14. 14.🔍 Which is the odd one out? (a) a siren (b) a school bell (c) a buzzer (d) a tube light
  15. 15.Which of these uses electricity? (a) a computer (b) a cell (c) a battery (d) a bicycle dynamo
  16. 16.🔋 Does a wind turbine give electricity or use electricity? (a) gives electricity (b) uses electricity
  17. 17.Which of these mainly makes movement? (a) a mixer grinder (b) a siren (c) a tube light (d) a night lamp
  18. 18.Which of these mainly makes sound? (a) a mixer grinder (b) a water heater (c) a night lamp (d) a buzzer
  19. 19.🔍 Which is the odd one out? (a) a buzzer (b) an electric drill (c) a school bell (d) a siren
  20. 20.True or false: a street light mainly makes sound. (a) True (b) False
  21. 21.⚡ What does a water heater mainly change electricity into? (a) light (b) movement (c) sound (d) heat
  22. 22.True or false: a night lamp mainly gives out light. (a) False (b) True
  23. 23.Which of these uses electricity? (a) a solar panel (b) a wind turbine (c) a cell (d) a washing machine
  24. 24.Which of these mainly makes sound? (a) a siren (b) a rice cooker (c) a night lamp (d) a table fan
  25. 25.🔋 Does a generator give electricity or use electricity? (a) gives electricity (b) uses electricity
  26. 26.⚡ A solar panel changes which kind of energy into electricity? (a) wind energy (b) sound energy (c) chemical energy (d) light energy
  27. 27.Which of these uses electricity? (a) a bicycle dynamo (b) a generator (c) a wind turbine (d) a mobile phone
  28. 28.True or false: a water heater mainly gives out heat. (a) False (b) True
  29. 29.⚡ A fan changes electrical energy mainly into which kind of energy? (a) chemical energy (b) movement energy (c) sound energy (d) light energy
  30. 30.Which of these mainly gives out heat? (a) an exhaust fan (b) an LED lamp (c) a school bell (d) a rice cooker
  31. 31.⚡ A cell changes stored chemical energy into which kind of energy? (a) wind energy (b) sound energy (c) nuclear energy (d) electrical energy
  32. 32.True or false: a doorbell mainly makes movement. (a) False (b) True
  33. 33.True or false: a room heater mainly gives out light. (a) True (b) False
  34. 34.Which of these mainly gives out light? (a) a rice cooker (b) a traffic signal (c) a room heater (d) an electric kettle
  35. 35.⚡ What does a mixer grinder mainly change electricity into? (a) heat (b) movement (c) sound (d) light
  36. 36.Which of these gives us electricity? (a) a bicycle dynamo (b) a television (c) an air conditioner (d) a refrigerator
  37. 37.🔋 Does a cell give electricity or use electricity? (a) uses electricity (b) gives electricity
  38. 38.⚡ What does a night lamp mainly change electricity into? (a) sound (b) light (c) movement (d) heat
  39. 39.🔋 Does a mobile phone give electricity or use electricity? (a) gives electricity (b) uses electricity
  40. 40.⚡ What do we call a flow of electric charge through a wire? (a) electric current (b) friction (c) sound (d) a magnet

Answer key

  1. a wind turbine
  2. heat
  3. a battery
  4. False
  5. an electric iron
  6. True
  7. False
  8. electrons
  9. gives electricity
  10. a rice cooker
  11. gives electricity
  12. movement
  13. a table fan
  14. a tube light
  15. a computer
  16. gives electricity
  17. a mixer grinder
  18. a buzzer
  19. an electric drill
  20. False
  21. heat
  22. True
  23. a washing machine
  24. a siren
  25. gives electricity
  26. light energy
  27. a mobile phone
  28. True
  29. movement energy
  30. a rice cooker
  31. electrical energy
  32. False
  33. False
  34. a traffic signal
  35. movement
  36. a bicycle dynamo
  37. gives electricity
  38. light
  39. uses electricity
  40. electric current

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