Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 974 · 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 voltage? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
2. 2.Which of these is measured in ohms (Ω)? (a) resistance (b) the flow of charge (c) the push of a cell (d) energy used each second
3. 3.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) voltage (d) energy used each second
4. 4.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
5. 5.📏 How many kilowatts (kW) is 1600 W? =
6. 6.📏 How many watts (W) is 2.2 kW?
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
8. 8.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) current (d) voltage
9. 9.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 1000 (d) 60
10. 10.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
11. 11.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
12. 12.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
13. 13.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
14. 14.📏 How many kilo-ohms (kΩ) is 600 Ω? =
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
16. 16.📏 How many ohms (Ω) is 0.8 kΩ?
17. 17.📏 How many amperes (A) is 190 mA? =
18. 18.True or false: the voltmeter is joined across a part. (a) False (b) True
19. 19.📏 How many ohms (Ω) is 6.4 kΩ?
20. 20.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
21. 21.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
22. 22.True or false: resistance is measured in amperes (A). (a) True (b) False
23. 23.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
24. 24.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) a bigger tank (d) the water pressure
25. 25.True or false: the ammeter is joined in series. (a) False (b) True
26. 26.📏 How many kilowatts (kW) is 2750 W? =
27. 27.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) voltage (c) the push of a cell (d) how much a part resists
28. 28.True or false: current is measured in amperes (A). (a) False (b) True
29. 29.📏 How many milliamperes (mA) is 2.5 A?
30. 30.Which of these is measured in amperes (A)? (a) the flow of charge (b) resistance (c) energy used each second (d) the push of a cell
31. 31.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) power (d) resistance
32. 32.Which of these is measured in watts (W)? (a) how much a part resists (b) the push of a cell (c) the flow of charge (d) power
33. 33.📏 How many watts (W) is 1.6 kW?
34. 34.True or false: the voltmeter is joined in series. (a) True (b) False
35. 35.📏 How many ohms (Ω) is 9.8 kΩ?
36. 36.True or false: how much a part resists is measured in volts (V). (a) False (b) True
37. 37.📏 How many milliamperes (mA) is 0.4 A?
38. 38.True or false: the push of a cell is measured in watts (W). (a) False (b) True
39. 39.True or false: the ammeter is joined across a part. (a) False (b) True
40. 40.📏 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

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