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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 147 · 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 uses electricity? (a) a wind turbine (b) a power station (c) a battery (d) an air conditioner
  2. 2.⚡ What does a traffic signal mainly change electricity into? (a) heat (b) sound (c) movement (d) light
  3. 3.Which of these gives us electricity? (a) a refrigerator (b) a television (c) a solar panel (d) a computer
  4. 4.⚡ What does a torch mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  5. 5.🔍 Which is the odd one out? (a) a rice cooker (b) an electric iron (c) a tube light (d) a toaster
  6. 6.Which of these mainly gives out heat? (a) an LED lamp (b) a buzzer (c) a room heater (d) a traffic signal
  7. 7.⚡ Which tiny particles drift along a metal wire to carry the current? (a) dust particles (b) electrons (c) photons (d) water drops
  8. 8.⚡ What do we call a flow of electric charge through a wire? (a) sound (b) a magnet (c) electric current (d) friction
  9. 9.⚡ What does an electric iron mainly change electricity into? (a) movement (b) heat (c) light (d) sound
  10. 10.⚡ A cell changes stored chemical energy into which kind of energy? (a) sound energy (b) wind energy (c) nuclear energy (d) electrical energy
  11. 11.Which of these uses electricity? (a) a generator (b) a water pump (c) a bicycle dynamo (d) a wind turbine
  12. 12.True or false: a buzzer mainly makes sound. (a) True (b) False
  13. 13.⚡ A fan changes electrical energy mainly into which kind of energy? (a) sound energy (b) movement energy (c) chemical energy (d) light energy
  14. 14.🔍 Which is the odd one out? (a) a loudspeaker (b) a siren (c) a mixer grinder (d) a school bell
  15. 15.🔋 Does an air conditioner give electricity or use electricity? (a) gives electricity (b) uses electricity
  16. 16.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) sound energy (b) light energy (c) chemical energy (d) movement energy
  17. 17.⚡ What does a school bell mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  18. 18.Which of these mainly makes sound? (a) an electric kettle (b) a water heater (c) a siren (d) a night lamp
  19. 19.Which of these mainly makes sound? (a) a toaster (b) an electric iron (c) a room heater (d) a school bell
  20. 20.True or false: a street light mainly gives out light. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) a tube light (b) a street light (c) a traffic signal (d) a buzzer
  22. 22.🔋 Does a mobile phone give electricity or use electricity? (a) uses electricity (b) gives electricity
  23. 23.⚡ What does an electric toy car mainly change electricity into? (a) movement (b) light (c) sound (d) heat
  24. 24.⚡ What does a siren mainly change electricity into? (a) sound (b) light (c) heat (d) movement
  25. 25.⚡ A solar panel changes which kind of energy into electricity? (a) light energy (b) sound energy (c) wind energy (d) chemical energy
  26. 26.🔍 Which is the odd one out? (a) a street light (b) an LED lamp (c) a water heater (d) a night lamp
  27. 27.Which of these mainly gives out heat? (a) a loudspeaker (b) an exhaust fan (c) an electric drill (d) a toaster
  28. 28.🔋 Does a generator give electricity or use electricity? (a) gives electricity (b) uses electricity
  29. 29.🔍 Which is the odd one out? (a) a room heater (b) an electric iron (c) an electric kettle (d) a siren
  30. 30.🔍 Which is the odd one out? (a) a night lamp (b) a room heater (c) a tube light (d) an LED lamp
  31. 31.⚡ What does a night lamp mainly change electricity into? (a) sound (b) light (c) heat (d) movement
  32. 32.⚡ What does a water heater mainly change electricity into? (a) light (b) heat (c) sound (d) movement
  33. 33.⚡ What does a rice cooker mainly change electricity into? (a) heat (b) movement (c) light (d) sound
  34. 34.Which of these mainly gives out heat? (a) an electric kettle (b) a traffic signal (c) a torch (d) a buzzer
  35. 35.Which of these mainly makes sound? (a) an LED lamp (b) a water heater (c) a loudspeaker (d) a mixer grinder
  36. 36.Which of these mainly gives out light? (a) a school bell (b) an electric iron (c) a buzzer (d) a street light
  37. 37.True or false: a siren mainly makes sound. (a) True (b) False
  38. 38.Which of these gives us electricity? (a) a battery (b) a washing machine (c) a refrigerator (d) a television
  39. 39.True or false: a table fan mainly makes sound. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) a doorbell (b) a rice cooker (c) an electric kettle (d) an electric iron

Answer key

  1. an air conditioner
  2. light
  3. a solar panel
  4. light
  5. a tube light
  6. a room heater
  7. electrons
  8. electric current
  9. heat
  10. electrical energy
  11. a water pump
  12. True
  13. movement energy
  14. a mixer grinder
  15. uses electricity
  16. movement energy
  17. sound
  18. a siren
  19. a school bell
  20. True
  21. a buzzer
  22. uses electricity
  23. movement
  24. sound
  25. light energy
  26. a water heater
  27. a toaster
  28. gives electricity
  29. a siren
  30. a room heater
  31. light
  32. heat
  33. heat
  34. an electric kettle
  35. a loudspeaker
  36. a street light
  37. True
  38. a battery
  39. False
  40. a doorbell

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