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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 145 · 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 tiny particles drift along a metal wire to carry the current? (a) electrons (b) water drops (c) photons (d) dust particles
  2. 2.Which of these mainly makes sound? (a) a mixer grinder (b) a siren (c) a street light (d) a traffic signal
  3. 3.🔍 Which is the odd one out? (a) an electric drill (b) a tube light (c) an LED lamp (d) a night lamp
  4. 4.Which of these mainly gives out heat? (a) an electric kettle (b) an LED lamp (c) a traffic signal (d) a doorbell
  5. 5.True or false: a room heater mainly gives out light. (a) True (b) False
  6. 6.Which of these mainly gives out light? (a) a siren (b) an electric iron (c) a night lamp (d) a buzzer
  7. 7.⚡ A cell changes stored chemical energy into which kind of energy? (a) sound energy (b) electrical energy (c) nuclear energy (d) wind energy
  8. 8.⚡ What does an LED lamp mainly change electricity into? (a) sound (b) light (c) movement (d) heat
  9. 9.⚡ What does a traffic signal mainly change electricity into? (a) heat (b) movement (c) sound (d) light
  10. 10.⚡ What does a street light mainly change electricity into? (a) movement (b) light (c) sound (d) heat
  11. 11.Which of these mainly gives out heat? (a) a toaster (b) a traffic signal (c) a siren (d) an exhaust fan
  12. 12.⚡ What does a ceiling fan mainly change electricity into? (a) light (b) sound (c) heat (d) movement
  13. 13.True or false: a toaster mainly gives out heat. (a) False (b) True
  14. 14.🔋 Does a bicycle dynamo give electricity or use electricity? (a) uses electricity (b) gives electricity
  15. 15.⚡ What does a tube light mainly change electricity into? (a) movement (b) sound (c) light (d) heat
  16. 16.Which of these gives us electricity? (a) a water pump (b) a generator (c) a washing machine (d) a refrigerator
  17. 17.Which of these uses electricity? (a) a wind turbine (b) a power station (c) a generator (d) an air conditioner
  18. 18.Which of these mainly makes sound? (a) a traffic signal (b) a loudspeaker (c) a room heater (d) an electric drill
  19. 19.🔋 Does a wind turbine give electricity or use electricity? (a) uses electricity (b) gives electricity
  20. 20.🔍 Which is the odd one out? (a) a doorbell (b) a torch (c) a tube light (d) a street light
  21. 21.🔍 Which is the odd one out? (a) a table fan (b) an exhaust fan (c) a traffic signal (d) a ceiling fan
  22. 22.⚡ What does a buzzer mainly change electricity into? (a) sound (b) movement (c) heat (d) light
  23. 23.🔋 Does a refrigerator give electricity or use electricity? (a) uses electricity (b) gives electricity
  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.Which of these mainly gives out light? (a) a street light (b) a rice cooker (c) an electric drill (d) a mixer grinder
  26. 26.⚡ What does a table fan mainly change electricity into? (a) heat (b) light (c) movement (d) sound
  27. 27.Which of these uses electricity? (a) a generator (b) a wind turbine (c) a battery (d) a computer
  28. 28.True or false: a ceiling fan mainly gives out heat. (a) False (b) True
  29. 29.⚡ What does a mixer grinder mainly change electricity into? (a) movement (b) light (c) sound (d) heat
  30. 30.⚡ A fan changes electrical energy mainly into which kind of energy? (a) light energy (b) movement energy (c) sound energy (d) chemical energy
  31. 31.⚡ What does a room heater mainly change electricity into? (a) heat (b) light (c) sound (d) movement
  32. 32.🔋 Does a computer give electricity or use electricity? (a) uses electricity (b) gives electricity
  33. 33.🔍 Which is the odd one out? (a) a water heater (b) a tube light (c) a street light (d) an LED lamp
  34. 34.⚡ What does an electric toy car mainly change electricity into? (a) light (b) sound (c) heat (d) movement
  35. 35.Which of these mainly makes sound? (a) an LED lamp (b) a rice cooker (c) a doorbell (d) a torch
  36. 36.🔋 Does an air conditioner give electricity or use electricity? (a) gives electricity (b) uses electricity
  37. 37.🔋 Does a battery give electricity or use electricity? (a) uses electricity (b) gives electricity
  38. 38.Which of these mainly gives out light? (a) a toaster (b) an electric kettle (c) a table fan (d) a tube light
  39. 39.🔍 Which is the odd one out? (a) a tube light (b) an exhaust fan (c) a traffic signal (d) a torch
  40. 40.⚡ What does a loudspeaker mainly change electricity into? (a) movement (b) sound (c) heat (d) light

Answer key

  1. electrons
  2. a siren
  3. an electric drill
  4. an electric kettle
  5. False
  6. a night lamp
  7. electrical energy
  8. light
  9. light
  10. light
  11. a toaster
  12. movement
  13. True
  14. gives electricity
  15. light
  16. a generator
  17. an air conditioner
  18. a loudspeaker
  19. gives electricity
  20. a doorbell
  21. a traffic signal
  22. sound
  23. uses electricity
  24. electric current
  25. a street light
  26. movement
  27. a computer
  28. False
  29. movement
  30. movement energy
  31. heat
  32. uses electricity
  33. a water heater
  34. movement
  35. a doorbell
  36. uses electricity
  37. gives electricity
  38. a tube light
  39. an exhaust fan
  40. sound

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