Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 595 · 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.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
3. 3.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
4. 4.📏 How many watts (W) is 0.1 kW?
5. 5.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) a bigger tank
6. 6.📏 How many milliamperes (mA) is 0.62 A?
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
9. 9.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) power (d) current
10. 10.True or false: energy used each second is measured in watts (W). (a) True (b) False
11. 11.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) power (c) energy used each second (d) how much a part resists
12. 12.Which of these is measured in watts (W)? (a) power (b) current (c) resistance (d) the flow of charge
13. 13.📏 How many ohms (Ω) is 6.5 kΩ?
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
15. 15.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
16. 16.📏 How many watts (W) is 1.8 kW?
17. 17.True or false: resistance is measured in ohms (Ω). (a) False (b) True
18. 18.📏 How many watts (W) is 2.3 kW?
19. 19.Which of these is measured in amperes (A)? (a) the push of a cell (b) resistance (c) current (d) voltage
20. 20.📏 How many amperes (A) is 2600 mA? =
21. 21.Which of these is measured in ohms (Ω)? (a) voltage (b) the flow of charge (c) resistance (d) the push of a cell
22. 22.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) the push of a cell (d) energy used each second
23. 23.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
24. 24.True or false: power is measured in watts (W). (a) False (b) True
25. 25.📏 How many amperes (A) is 2470 mA? =
26. 26.True or false: the voltmeter is joined in series. (a) True (b) False
27. 27.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
28. 28.True or false: the ammeter measures voltage. (a) True (b) False
29. 29.True or false: the ammeter measures current. (a) False (b) True
30. 30.True or false: the voltmeter measures voltage. (a) True (b) False
31. 31.📏 How many milliamperes (mA) is 1.7 A?
32. 32.📏 How many ohms (Ω) is 1.7 kΩ?
33. 33.True or false: the voltmeter is joined across a part. (a) False (b) True
34. 34.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
35. 35.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
36. 36.True or false: voltage is measured in watts (W). (a) True (b) False
37. 37.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) power
38. 38.📏 How many watts (W) is 2.9 kW?
39. 39.📏 How many amperes (A) is 2240 mA? =
40. 40.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)

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