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Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 916 · 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.

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  1. 1.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
  2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
  3. 3.True or false: the voltmeter is joined across a part. (a) True (b) False
  4. 4.True or false: current is measured in volts (V). (a) False (b) True
  5. 5.📏 How many amperes (A) is 1360 mA? =
  6. 6.True or false: the voltmeter measures voltage. (a) False (b) True
  7. 7.True or false: power is measured in volts (V). (a) True (b) False
  8. 8.📏 How many amperes (A) is 10 mA? =
  9. 9.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
  10. 10.True or false: the ammeter measures current. (a) False (b) True
  11. 11.📏 How many amperes (A) is 1440 mA? =
  12. 12.📏 How many kilowatts (kW) is 4100 W? =
  13. 13.📏 How many milliamperes (mA) is 2.92 A?
  14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
  15. 15.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
  16. 16.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
  17. 17.📏 How many kilo-ohms (kΩ) is 1800 Ω? =
  18. 18.📏 How many watts (W) is 2.1 kW?
  19. 19.📏 How many ohms (Ω) is 8.1 kΩ?
  20. 20.Which of these is measured in volts (V)? (a) the flow of charge (b) resistance (c) voltage (d) power
  21. 21.📏 How many amperes (A) is 2290 mA? =
  22. 22.📏 How many amperes (A) is 120 mA? =
  23. 23.📏 How many milliamperes (mA) is 1.4 A?
  24. 24.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
  25. 25.True or false: the voltmeter is joined in series. (a) False (b) True
  26. 26.📏 How many kilowatts (kW) is 750 W? =
  27. 27.📏 How many milliamperes (mA) is 1.35 A?
  28. 28.📏 How many kilo-ohms (kΩ) is 4300 Ω? =
  29. 29.📏 How many watts (W) is 3.9 kW?
  30. 30.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
  31. 31.📏 How many ohms (Ω) is 1.1 kΩ?
  32. 32.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 1000 (d) 60
  33. 33.True or false: resistance is measured in ohms (Ω). (a) True (b) False
  34. 34.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
  35. 35.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) a narrow pipe (d) the water pressure
  36. 36.True or false: the push of a cell is measured in watts (W). (a) True (b) False
  37. 37.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
  38. 38.True or false: current is measured in amperes (A). (a) False (b) True
  39. 39.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
  40. 40.📏 How many ohms (Ω) is 5.5 kΩ?

Answer key

  1. ammeter
  2. voltmeter
  3. True
  4. False
  5. 1.36
  6. True
  7. False
  8. 0.01
  9. volt (V)
  10. True
  11. 1.44
  12. 4.1
  13. 2920
  14. voltmeter
  15. a narrow pipe
  16. True
  17. 1.8
  18. 2100
  19. 8100
  20. voltage
  21. 2.29
  22. 0.12
  23. 1400
  24. ammeter
  25. False
  26. 0.75
  27. 1350
  28. 4.3
  29. 3900
  30. ohm (Ω)
  31. 1100
  32. 1000
  33. True
  34. watt (W)
  35. the flow of water
  36. False
  37. ampere (A)
  38. True
  39. volt (V)
  40. 5500

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