Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 876 · 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.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
2. 2.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
3. 3.True or false: how much a part resists is measured in watts (W). (a) True (b) False
4. 4.📏 How many ohms (Ω) is 2 kΩ?
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
6. 6.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
7. 7.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
8. 8.📏 How many watts (W) is 0.6 kW?
9. 9.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) the push of a cell (d) the flow of charge
10. 10.True or false: how much a part resists is measured in volts (V). (a) False (b) True
11. 11.📏 How many milliamperes (mA) is 0.32 A?
12. 12.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
13. 13.True or false: resistance is measured in amperes (A). (a) False (b) True
14. 14.True or false: resistance is measured in ohms (Ω). (a) True (b) False
15. 15.True or false: current is measured in amperes (A). (a) True (b) False
16. 16.📏 How many milliamperes (mA) is 1.82 A?
17. 17.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
18. 18.True or false: the voltmeter measures voltage. (a) True (b) False
19. 19.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
20. 20.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
21. 21.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
22. 22.📏 How many amperes (A) is 410 mA? =
23. 23.True or false: power is measured in volts (V). (a) True (b) False
24. 24.📏 How many amperes (A) is 2330 mA? =
25. 25.Which of these is measured in watts (W)? (a) voltage (b) power (c) current (d) the flow of charge
26. 26.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) voltage (d) resistance
27. 27.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) the flow of water (d) a narrow pipe
28. 28.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the tap handle (d) the water tank lid
29. 29.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
30. 30.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
31. 31.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 1000 (d) 60
32. 32.📏 How many kilo-ohms (kΩ) is 6200 Ω? =
33. 33.True or false: the voltmeter is joined in series. (a) False (b) True
34. 34.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) the flow of charge (d) power
35. 35.True or false: the push of a cell is measured in volts (V). (a) False (b) True
36. 36.📏 How many watts (W) is 3.2 kW?
37. 37.📏 How many ohms (Ω) is 5.1 kΩ?
38. 38.📏 How many watts (W) is 4.4 kW?
39. 39.📏 How many amperes (A) is 1970 mA? =
40. 40.Which of these is measured in watts (W)? (a) resistance (b) the flow of charge (c) energy used each second (d) how much a part resists

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