Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 792 · 40 questions

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.

1. 1.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
2. 2.📏 How many kilowatts (kW) is 3800 W? =
3. 3.True or false: the ammeter measures current. (a) True (b) False
4. 4.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 10 (d) 1000
5. 5.True or false: the push of a cell is measured in volts (V). (a) False (b) True
6. 6.Which of these is measured in ohms (Ω)? (a) energy used each second (b) voltage (c) the push of a cell (d) resistance
7. 7.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) current (d) the push of a cell
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water pressure (d) the water tank lid
9. 9.Which of these is measured in amperes (A)? (a) current (b) voltage (c) how much a part resists (d) resistance
10. 10.True or false: current is measured in ohms (Ω). (a) True (b) False
11. 11.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
12. 12.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
13. 13.📏 How many amperes (A) is 590 mA? =
14. 14.True or false: the voltmeter measures voltage. (a) True (b) False
15. 15.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
16. 16.Which of these is measured in volts (V)? (a) current (b) resistance (c) energy used each second (d) the push of a cell
17. 17.True or false: the ammeter measures voltage. (a) True (b) False
18. 18.📏 How many watts (W) is 4.7 kW?
19. 19.📏 How many milliamperes (mA) is 0.45 A?
20. 20.📏 How many amperes (A) is 1800 mA? =
21. 21.📏 How many milliamperes (mA) is 1.31 A?
22. 22.📏 How many ohms (Ω) is 9.5 kΩ?
23. 23.📏 How many ohms (Ω) is 5.2 kΩ?
24. 24.📏 How many ohms (Ω) is 2.9 kΩ?
25. 25.📏 How many amperes (A) is 2930 mA? =
26. 26.📏 How many watts (W) is 0.7 kW?
27. 27.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
28. 28.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) the push of a cell (d) resistance
29. 29.True or false: the ammeter is joined across a part. (a) True (b) False
30. 30.Which of these is measured in watts (W)? (a) the flow of charge (b) voltage (c) the push of a cell (d) energy used each second
31. 31.True or false: the voltmeter measures current. (a) False (b) True
32. 32.True or false: voltage is measured in volts (V). (a) True (b) False
33. 33.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
34. 34.📏 How many kilowatts (kW) is 600 W? =
35. 35.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
36. 36.True or false: voltage is measured in watts (W). (a) True (b) False
37. 37.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 1024 (d) 10
38. 38.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
39. 39.True or false: energy used each second is measured in watts (W). (a) True (b) False
40. 40.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)

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