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Electronics Worksheet: Electricity and Energy

Electronics lesson 1: Electricity and energy · Set 336 · 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 mainly makes sound? (a) a siren (b) an exhaust fan (c) a table fan (d) a tube light
  2. 2.⚡ What does a siren mainly change electricity into? (a) movement (b) sound (c) light (d) heat
  3. 3.🔍 Which is the odd one out? (a) a table fan (b) a torch (c) a mixer grinder (d) a ceiling fan
  4. 4.Which of these gives us electricity? (a) an air conditioner (b) a television (c) a solar panel (d) a water pump
  5. 5.⚡ A cell changes stored chemical energy into which kind of energy? (a) sound energy (b) nuclear energy (c) electrical energy (d) wind energy
  6. 6.True or false: a mixer grinder mainly makes movement. (a) False (b) True
  7. 7.Which of these mainly gives out heat? (a) an exhaust fan (b) a loudspeaker (c) a rice cooker (d) a mixer grinder
  8. 8.Which of these uses electricity? (a) a bicycle dynamo (b) a battery (c) a power station (d) an air conditioner
  9. 9.Which of these uses electricity? (a) a refrigerator (b) a generator (c) a wind turbine (d) a solar panel
  10. 10.Which of these gives us electricity? (a) a mobile phone (b) a washing machine (c) a refrigerator (d) a generator
  11. 11.🔋 Does a battery give electricity or use electricity? (a) uses electricity (b) gives electricity
  12. 12.🔍 Which is the odd one out? (a) a table fan (b) an exhaust fan (c) a mixer grinder (d) a toaster
  13. 13.🔍 Which is the odd one out? (a) a tube light (b) a night lamp (c) a water heater (d) a torch
  14. 14.⚡ What do we call a flow of electric charge through a wire? (a) electric current (b) friction (c) a magnet (d) sound
  15. 15.⚡ What does a night lamp mainly change electricity into? (a) light (b) heat (c) movement (d) sound
  16. 16.🔋 Does a solar panel give electricity or use electricity? (a) uses electricity (b) gives electricity
  17. 17.🔋 Does a water pump give electricity or use electricity? (a) uses electricity (b) gives electricity
  18. 18.Which of these mainly makes movement? (a) a loudspeaker (b) an exhaust fan (c) an LED lamp (d) a room heater
  19. 19.🔋 Does a cell give electricity or use electricity? (a) uses electricity (b) gives electricity
  20. 20.True or false: a mixer grinder mainly gives out heat. (a) False (b) True
  21. 21.⚡ What does an electric drill mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  22. 22.⚡ What does an exhaust fan mainly change electricity into? (a) heat (b) sound (c) light (d) movement
  23. 23.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) sound energy (b) chemical energy (c) light energy (d) movement energy
  24. 24.True or false: a loudspeaker mainly makes sound. (a) True (b) False
  25. 25.⚡ Which tiny particles drift along a metal wire to carry the current? (a) water drops (b) electrons (c) photons (d) dust particles
  26. 26.⚡ What does an electric iron mainly change electricity into? (a) light (b) heat (c) movement (d) sound
  27. 27.Which of these mainly gives out light? (a) a buzzer (b) an LED lamp (c) a table fan (d) an electric iron
  28. 28.🔋 Does a bicycle dynamo give electricity or use electricity? (a) uses electricity (b) gives electricity
  29. 29.🔍 Which is the odd one out? (a) an electric iron (b) a traffic signal (c) a night lamp (d) a street light
  30. 30.True or false: a room heater mainly gives out light. (a) True (b) False
  31. 31.⚡ What does a loudspeaker mainly change electricity into? (a) heat (b) light (c) sound (d) movement
  32. 32.⚡ What does an LED lamp mainly change electricity into? (a) movement (b) sound (c) light (d) heat
  33. 33.🔋 Does a power station give electricity or use electricity? (a) uses electricity (b) gives electricity
  34. 34.🔍 Which is the odd one out? (a) a night lamp (b) a torch (c) a mixer grinder (d) a street light
  35. 35.Which of these gives us electricity? (a) an air conditioner (b) a washing machine (c) a bicycle dynamo (d) a mobile phone
  36. 36.Which of these gives us electricity? (a) a television (b) a mobile phone (c) a cell (d) a computer
  37. 37.⚡ What does a doorbell mainly change electricity into? (a) sound (b) heat (c) light (d) movement
  38. 38.⚡ What does a street light mainly change electricity into? (a) heat (b) sound (c) movement (d) light
  39. 39.⚡ What does a mixer grinder mainly change electricity into? (a) movement (b) sound (c) heat (d) light
  40. 40.Which of these uses electricity? (a) a cell (b) a solar panel (c) a water pump (d) a wind turbine

Answer key

  1. a siren
  2. sound
  3. a torch
  4. a solar panel
  5. electrical energy
  6. True
  7. a rice cooker
  8. an air conditioner
  9. a refrigerator
  10. a generator
  11. gives electricity
  12. a toaster
  13. a water heater
  14. electric current
  15. light
  16. gives electricity
  17. uses electricity
  18. an exhaust fan
  19. gives electricity
  20. False
  21. movement
  22. movement
  23. movement energy
  24. True
  25. electrons
  26. heat
  27. an LED lamp
  28. gives electricity
  29. an electric iron
  30. False
  31. sound
  32. light
  33. gives electricity
  34. a mixer grinder
  35. a bicycle dynamo
  36. a cell
  37. sound
  38. light
  39. movement
  40. a water pump

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