Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 496 · 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.📏 How many ohms (Ω) is 2.3 kΩ?
2. 2.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
3. 3.📏 How many watts (W) is 3.4 kW?
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
5. 5.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
7. 7.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 1024 (d) 10
8. 8.📏 How many kilowatts (kW) is 3050 W? =
9. 9.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
10. 10.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
11. 11.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
12. 12.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) power (d) energy used each second
13. 13.True or false: the ammeter is joined across a part. (a) True (b) False
14. 14.True or false: the ammeter measures current. (a) True (b) False
15. 15.📏 How many watts (W) is 1 kW?
16. 16.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
17. 17.Which of these is measured in volts (V)? (a) energy used each second (b) the flow of charge (c) how much a part resists (d) the push of a cell
18. 18.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) current (c) voltage (d) resistance
19. 19.True or false: the voltmeter measures current. (a) False (b) True
20. 20.📏 How many ohms (Ω) is 5.1 kΩ?
21. 21.True or false: the voltmeter is joined across a part. (a) True (b) False
22. 22.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
23. 23.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
24. 24.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
25. 25.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the pipe colour (d) the water pressure
26. 26.📏 How many watts (W) is 3.1 kW?
27. 27.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
28. 28.📏 How many amperes (A) is 920 mA? =
29. 29.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
30. 30.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
31. 31.True or false: the voltmeter is joined in series. (a) True (b) False
32. 32.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) the flow of charge (c) energy used each second (d) how much a part resists
33. 33.True or false: current is measured in watts (W). (a) True (b) False
34. 34.True or false: resistance is measured in volts (V). (a) True (b) False
35. 35.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
36. 36.📏 How many amperes (A) is 680 mA? =
37. 37.📏 How many milliamperes (mA) is 2.33 A?
38. 38.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
39. 39.📏 How many milliamperes (mA) is 2.67 A?
40. 40.📏 How many kilo-ohms (kΩ) is 2900 Ω? =

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