Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 965 · 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 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
2. 2.True or false: resistance is measured in watts (W). (a) True (b) False
3. 3.True or false: the voltmeter is joined in series. (a) False (b) True
4. 4.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
5. 5.True or false: resistance is measured in ohms (Ω). (a) True (b) False
6. 6.📏 How many kilo-ohms (kΩ) is 8400 Ω? =
7. 7.True or false: the voltmeter is joined across a part. (a) True (b) False
8. 8.Which of these is measured in volts (V)? (a) the push of a cell (b) current (c) energy used each second (d) power
9. 9.📏 How many watts (W) is 3.9 kW?
10. 10.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
11. 11.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
12. 12.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
13. 13.Which of these is measured in volts (V)? (a) energy used each second (b) how much a part resists (c) the flow of charge (d) voltage
14. 14.📏 How many kilo-ohms (kΩ) is 9600 Ω? =
15. 15.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
16. 16.📏 How many amperes (A) is 1090 mA? =
17. 17.📏 How many watts (W) is 4.4 kW?
18. 18.📏 How many ohms (Ω) is 3 kΩ?
19. 19.📏 How many kilo-ohms (kΩ) is 7200 Ω? =
20. 20.Which of these is measured in amperes (A)? (a) the flow of charge (b) resistance (c) the push of a cell (d) power
21. 21.True or false: the ammeter is joined in series. (a) False (b) True
22. 22.True or false: current is measured in volts (V). (a) True (b) False
23. 23.📏 How many kilowatts (kW) is 3250 W? =
24. 24.📏 How many watts (W) is 1.4 kW?
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
26. 26.📏 How many kilowatts (kW) is 3850 W? =
27. 27.📏 How many milliamperes (mA) is 2.53 A?
28. 28.📏 How many amperes (A) is 1230 mA? =
29. 29.True or false: how much a part resists is measured in volts (V). (a) False (b) True
30. 30.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) voltage (d) power
31. 31.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
32. 32.True or false: current is measured in watts (W). (a) True (b) False
33. 33.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) resistance (d) power
34. 34.📏 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
35. 35.📏 Which unit measures resistance? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
36. 36.True or false: the voltmeter measures current. (a) False (b) True
37. 37.True or false: the ammeter measures voltage. (a) False (b) True
38. 38.True or false: the push of a cell is measured in volts (V). (a) True (b) False
39. 39.📏 How many milliamperes (mA) is 0.48 A?
40. 40.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)

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