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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 321 · 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.⚡ What do we call a flow of electric charge through a wire? (a) a magnet (b) friction (c) electric current (d) sound
  2. 2.🔍 Which is the odd one out? (a) a rice cooker (b) a night lamp (c) a water heater (d) an electric iron
  3. 3.Which of these mainly makes sound? (a) a room heater (b) a buzzer (c) an electric drill (d) a tube light
  4. 4.🔍 Which is the odd one out? (a) an exhaust fan (b) a table fan (c) a school bell (d) an electric toy car
  5. 5.True or false: an LED lamp mainly gives out light. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) an LED lamp (b) a torch (c) a ceiling fan (d) a street light
  7. 7.Which of these mainly gives out light? (a) an electric iron (b) a loudspeaker (c) a table fan (d) an LED lamp
  8. 8.⚡ A fan changes electrical energy mainly into which kind of energy? (a) chemical energy (b) sound energy (c) light energy (d) movement energy
  9. 9.⚡ What does a street light mainly change electricity into? (a) sound (b) heat (c) light (d) movement
  10. 10.True or false: a loudspeaker mainly makes sound. (a) False (b) True
  11. 11.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) sound energy (b) chemical energy (c) movement energy (d) light energy
  12. 12.Which of these mainly makes movement? (a) an electric iron (b) a street light (c) a night lamp (d) an exhaust fan
  13. 13.⚡ What does a traffic signal mainly change electricity into? (a) sound (b) light (c) heat (d) movement
  14. 14.⚡ What does an electric drill mainly change electricity into? (a) light (b) heat (c) movement (d) sound
  15. 15.🔍 Which is the odd one out? (a) a tube light (b) a buzzer (c) an LED lamp (d) a night lamp
  16. 16.🔋 Does a wind turbine give electricity or use electricity? (a) uses electricity (b) gives electricity
  17. 17.⚡ A solar panel changes which kind of energy into electricity? (a) chemical energy (b) wind energy (c) light energy (d) sound energy
  18. 18.🔍 Which is the odd one out? (a) a night lamp (b) a traffic signal (c) a toaster (d) a street light
  19. 19.True or false: a room heater mainly gives out light. (a) False (b) True
  20. 20.Which of these gives us electricity? (a) a television (b) a washing machine (c) a generator (d) a computer
  21. 21.⚡ What does a buzzer mainly change electricity into? (a) heat (b) movement (c) light (d) sound
  22. 22.True or false: an electric kettle mainly gives out heat. (a) True (b) False
  23. 23.⚡ What does a siren mainly change electricity into? (a) light (b) movement (c) sound (d) heat
  24. 24.🔋 Does a television give electricity or use electricity? (a) uses electricity (b) gives electricity
  25. 25.Which of these mainly gives out heat? (a) a table fan (b) an electric iron (c) an electric toy car (d) an electric drill
  26. 26.🔍 Which is the odd one out? (a) a torch (b) an exhaust fan (c) a tube light (d) an LED lamp
  27. 27.🔍 Which is the odd one out? (a) a torch (b) a water heater (c) an electric iron (d) a rice cooker
  28. 28.Which of these mainly gives out heat? (a) a torch (b) a siren (c) a loudspeaker (d) a room heater
  29. 29.🔍 Which is the odd one out? (a) an electric drill (b) a mixer grinder (c) an exhaust fan (d) a room heater
  30. 30.⚡ What does an electric iron mainly change electricity into? (a) heat (b) sound (c) light (d) movement
  31. 31.Which of these uses electricity? (a) a power station (b) a wind turbine (c) a mobile phone (d) a generator
  32. 32.⚡ A cell changes stored chemical energy into which kind of energy? (a) sound energy (b) wind energy (c) nuclear energy (d) electrical energy
  33. 33.⚡ What does an LED lamp mainly change electricity into? (a) sound (b) heat (c) movement (d) light
  34. 34.⚡ What does a tube light mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  35. 35.Which of these mainly gives out heat? (a) an electric kettle (b) a tube light (c) a traffic signal (d) a table fan
  36. 36.⚡ Which tiny particles drift along a metal wire to carry the current? (a) photons (b) electrons (c) water drops (d) dust particles
  37. 37.True or false: a toaster mainly gives out light. (a) False (b) True
  38. 38.🔋 Does a refrigerator give electricity or use electricity? (a) uses electricity (b) gives electricity
  39. 39.Which of these gives us electricity? (a) a washing machine (b) a water pump (c) a cell (d) an air conditioner
  40. 40.True or false: an electric drill mainly makes movement. (a) False (b) True

Answer key

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

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