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Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 835 · 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.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
  2. 2.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
  3. 3.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
  4. 4.True or false: resistance is measured in ohms (Ω). (a) True (b) False
  5. 5.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
  6. 6.📏 How many milliamperes (mA) is 2.65 A?
  7. 7.📏 How many milliamperes (mA) is 1.07 A?
  8. 8.📏 How many milliamperes (mA) is 0.41 A?
  9. 9.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 10 (d) 1000
  10. 10.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
  11. 11.True or false: the voltmeter measures voltage. (a) False (b) True
  12. 12.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
  13. 13.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
  14. 14.📏 How many milliamperes (mA) is 2.95 A?
  15. 15.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
  16. 16.📏 How many watts (W) is 0.7 kW?
  17. 17.True or false: the voltmeter is joined across a part. (a) True (b) False
  18. 18.Which of these is measured in volts (V)? (a) resistance (b) voltage (c) the flow of charge (d) energy used each second
  19. 19.True or false: voltage is measured in amperes (A). (a) True (b) False
  20. 20.📏 How many milliamperes (mA) is 1.03 A?
  21. 21.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) energy used each second (d) resistance
  22. 22.True or false: the ammeter measures current. (a) False (b) True
  23. 23.📏 How many ohms (Ω) is 8.2 kΩ?
  24. 24.📏 How many milliamperes (mA) is 0.38 A?
  25. 25.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) power (d) the flow of charge
  26. 26.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
  27. 27.True or false: the ammeter is joined across a part. (a) False (b) True
  28. 28.True or false: the ammeter measures voltage. (a) True (b) False
  29. 29.📏 How many ohms (Ω) is 0.6 kΩ?
  30. 30.True or false: current is measured in ohms (Ω). (a) False (b) True
  31. 31.True or false: power is measured in volts (V). (a) True (b) False
  32. 32.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
  33. 33.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
  34. 34.True or false: the voltmeter measures current. (a) True (b) False
  35. 35.📏 How many watts (W) is 3.7 kW?
  36. 36.📏 How many milliamperes (mA) is 1.68 A?
  37. 37.📏 How many kilowatts (kW) is 1800 W? =
  38. 38.📏 How many kilowatts (kW) is 3650 W? =
  39. 39.📏 How many kilowatts (kW) is 2000 W? =
  40. 40.📏 How many ohms (Ω) is 1.9 kΩ?

Answer key

  1. volt (V)
  2. False
  3. 1000
  4. True
  5. 2.4
  6. 2650
  7. 1070
  8. 410
  9. 1000
  10. ohm (Ω)
  11. True
  12. True
  13. the water pressure
  14. 2950
  15. voltmeter
  16. 700
  17. True
  18. voltage
  19. False
  20. 1030
  21. current
  22. True
  23. 8200
  24. 380
  25. resistance
  26. watt (W)
  27. False
  28. False
  29. 600
  30. False
  31. False
  32. watt (W)
  33. voltmeter
  34. False
  35. 3700
  36. 1680
  37. 1.8
  38. 3.65
  39. 2
  40. 1900

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