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Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 972 · 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.True or false: the flow of charge is measured in volts (V). (a) False (b) True
  2. 2.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
  3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
  4. 4.True or false: the ammeter is joined in series. (a) False (b) True
  5. 5.Which of these is measured in volts (V)? (a) the flow of charge (b) voltage (c) current (d) power
  6. 6.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
  7. 7.Which of these is measured in volts (V)? (a) resistance (b) current (c) power (d) the push of a cell
  8. 8.True or false: energy used each second is measured in amperes (A). (a) True (b) False
  9. 9.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) current (c) voltage (d) resistance
  10. 10.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
  11. 11.📏 How many watts (W) is 0.2 kW?
  12. 12.📏 How many amperes (A) is 1560 mA? =
  13. 13.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 10 (d) 1000
  14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
  15. 15.True or false: the voltmeter measures current. (a) True (b) False
  16. 16.📏 How many ohms (Ω) is 9.5 kΩ?
  17. 17.True or false: voltage is measured in watts (W). (a) True (b) False
  18. 18.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
  19. 19.Which of these is measured in amperes (A)? (a) voltage (b) power (c) how much a part resists (d) current
  20. 20.📏 How many kilo-ohms (kΩ) is 7500 Ω? =
  21. 21.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
  22. 22.📏 How many kilowatts (kW) is 700 W? =
  23. 23.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 1000 (d) 60
  24. 24.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
  25. 25.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
  26. 26.📏 How many milliamperes (mA) is 2.7 A?
  27. 27.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
  28. 28.📏 How many kilowatts (kW) is 3100 W? =
  29. 29.📏 How many amperes (A) is 1950 mA? =
  30. 30.📏 How many watts (W) is 1.8 kW?
  31. 31.📏 How many kilowatts (kW) is 2350 W? =
  32. 32.📏 How many kilowatts (kW) is 1650 W? =
  33. 33.📏 How many kilo-ohms (kΩ) is 7800 Ω? =
  34. 34.📏 How many ohms (Ω) is 5.7 kΩ?
  35. 35.📏 How many amperes (A) is 170 mA? =
  36. 36.📏 How many kilowatts (kW) is 1700 W? =
  37. 37.📏 How many ohms (Ω) is 4.1 kΩ?
  38. 38.True or false: energy used each second is measured in watts (W). (a) False (b) True
  39. 39.📏 How many kilo-ohms (kΩ) is 9100 Ω? =
  40. 40.📏 How many ohms (Ω) is 4.5 kΩ?

Answer key

  1. False
  2. ammeter
  3. voltmeter
  4. True
  5. voltage
  6. ampere (A)
  7. the push of a cell
  8. False
  9. resistance
  10. watt (W)
  11. 200
  12. 1.56
  13. 1000
  14. voltmeter
  15. False
  16. 9500
  17. False
  18. volt (V)
  19. current
  20. 7.5
  21. the water pressure
  22. 0.7
  23. 1000
  24. the flow of water
  25. ohm (Ω)
  26. 2700
  27. volt (V)
  28. 3.1
  29. 1.95
  30. 1800
  31. 2.35
  32. 1.65
  33. 7.8
  34. 5700
  35. 0.17
  36. 1.7
  37. 4100
  38. True
  39. 9.1
  40. 4500

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