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Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 624 · 40 questions
TalentJR

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

NameDateTime takenScore ___ / 40
  1. 1.📏 How many milliamperes (mA) is 1.27 A?
  2. 2.True or false: the voltmeter is joined in series. (a) False (b) True
  3. 3.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
  4. 4.True or false: the ammeter is joined across a part. (a) True (b) False
  5. 5.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
  6. 6.📏 How many amperes (A) is 270 mA? =
  7. 7.📏 How many milliamperes (mA) is 1.76 A?
  8. 8.📏 How many kilowatts (kW) is 3450 W? =
  9. 9.True or false: the voltmeter is joined across a part. (a) False (b) True
  10. 10.True or false: voltage is measured in amperes (A). (a) False (b) True
  11. 11.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
  12. 12.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
  13. 13.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
  14. 14.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) a bigger tank
  15. 15.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
  16. 16.📏 How many watts (W) is 4 kW?
  17. 17.📏 How many watts (W) is 1.7 kW?
  18. 18.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) voltage (d) the flow of charge
  19. 19.📏 How many ohms (Ω) is 3.7 kΩ?
  20. 20.📏 How many amperes (A) is 900 mA? =
  21. 21.📏 How many kilowatts (kW) is 700 W? =
  22. 22.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
  23. 23.True or false: the ammeter measures voltage. (a) True (b) False
  24. 24.📏 How many amperes (A) is 480 mA? =
  25. 25.True or false: resistance is measured in watts (W). (a) False (b) True
  26. 26.📏 How many milliamperes (mA) is 0.53 A?
  27. 27.📏 Which unit measures voltage? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
  28. 28.📏 How many kilowatts (kW) is 2250 W? =
  29. 29.True or false: energy used each second is measured in volts (V). (a) True (b) False
  30. 30.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
  31. 31.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) current
  32. 32.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
  33. 33.True or false: current is measured in amperes (A). (a) False (b) True
  34. 34.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
  35. 35.📏 How many amperes (A) is 2990 mA? =
  36. 36.True or false: energy used each second is measured in watts (W). (a) False (b) True
  37. 37.True or false: resistance is measured in volts (V). (a) False (b) True
  38. 38.True or false: the voltmeter measures current. (a) True (b) False
  39. 39.📏 How many amperes (A) is 2270 mA? =
  40. 40.📏 How many kilowatts (kW) is 1300 W? =

Answer key

  1. 1270
  2. False
  3. True
  4. False
  5. ammeter
  6. 0.27
  7. 1760
  8. 3.45
  9. True
  10. False
  11. 1000
  12. voltmeter
  13. ampere (A)
  14. a narrow pipe
  15. watt (W)
  16. 4000
  17. 1700
  18. voltage
  19. 3700
  20. 0.9
  21. 0.7
  22. watt (W)
  23. False
  24. 0.48
  25. False
  26. 530
  27. volt (V)
  28. 2.25
  29. False
  30. True
  31. energy used each second
  32. voltmeter
  33. True
  34. ammeter
  35. 2.99
  36. True
  37. False
  38. False
  39. 2.27
  40. 1.3

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