Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 884 · 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 voltmeter measures voltage. (a) True (b) False
2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 1000 (d) 10
3. 3.Which of these is measured in volts (V)? (a) the push of a cell (b) current (c) the flow of charge (d) power
4. 4.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) current (d) energy used each second
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
6. 6.True or false: the push of a cell is measured in volts (V). (a) True (b) False
7. 7.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
9. 9.📏 How many kilowatts (kW) is 3550 W? =
10. 10.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
11. 11.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
12. 12.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
13. 13.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
14. 14.True or false: the voltmeter measures current. (a) True (b) False
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the water tank lid (d) the tap handle
16. 16.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
17. 17.True or false: current is measured in amperes (A). (a) True (b) False
18. 18.True or false: the voltmeter is joined in series. (a) False (b) True
19. 19.Which of these is measured in amperes (A)? (a) the flow of charge (b) the push of a cell (c) power (d) how much a part resists
20. 20.📏 How many ohms (Ω) is 5.3 kΩ?
21. 21.📏 How many watts (W) is 1.4 kW?
22. 22.True or false: the ammeter is joined across a part. (a) False (b) True
23. 23.True or false: power is measured in watts (W). (a) False (b) True
24. 24.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
25. 25.📏 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
26. 26.True or false: voltage is measured in amperes (A). (a) False (b) True
27. 27.True or false: the ammeter measures current. (a) False (b) True
28. 28.True or false: power is measured in volts (V). (a) True (b) False
29. 29.True or false: the voltmeter is joined across a part. (a) False (b) True
30. 30.📏 How many milliamperes (mA) is 1.83 A?
31. 31.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
32. 32.📏 How many amperes (A) is 1930 mA? =
33. 33.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) power (d) current
34. 34.True or false: the ammeter is joined in series. (a) True (b) False
35. 35.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
36. 36.📏 How many kilowatts (kW) is 2150 W? =
37. 37.📏 How many amperes (A) is 1220 mA? =
38. 38.📏 How many kilo-ohms (kΩ) is 900 Ω? =
39. 39.📏 How many amperes (A) is 1560 mA? =
40. 40.📏 How many watts (W) is 0.2 kW?

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