Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 296 · 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 how much a part resists? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
2. 2.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
3. 3.📏 How many ohms (Ω) is 2.1 kΩ?
4. 4.True or false: the ammeter is joined across a part. (a) False (b) True
5. 5.📏 How many amperes (A) is 740 mA? =
6. 6.True or false: current is measured in ohms (Ω). (a) False (b) True
7. 7.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
8. 8.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
9. 9.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
10. 10.Which of these is measured in amperes (A)? (a) how much a part resists (b) voltage (c) the push of a cell (d) the flow of charge
11. 11.True or false: current is measured in watts (W). (a) True (b) False
12. 12.True or false: energy used each second is measured in amperes (A). (a) False (b) True
13. 13.📏 How many kilo-ohms (kΩ) is 10000 Ω? =
14. 14.True or false: the voltmeter is joined across a part. (a) False (b) True
15. 15.True or false: energy used each second is measured in watts (W). (a) True (b) False
16. 16.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) resistance (d) power
17. 17.Which of these is measured in volts (V)? (a) voltage (b) the flow of charge (c) resistance (d) power
18. 18.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
19. 19.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
20. 20.True or false: the voltmeter is joined in series. (a) False (b) True
21. 21.📏 How many milliamperes (mA) is 1.52 A?
22. 22.📏 How many kilowatts (kW) is 4750 W? =
23. 23.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) energy used each second (d) the flow of charge
24. 24.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a bigger tank (d) a narrow pipe
25. 25.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
26. 26.📏 How many ohms (Ω) is 0.8 kΩ?
27. 27.📏 How many watts (W) is 3.9 kW?
28. 28.True or false: how much a part resists is measured in watts (W). (a) True (b) False
29. 29.📏 How many ohms (Ω) is 2.4 kΩ?
30. 30.True or false: the push of a cell is measured in volts (V). (a) False (b) True
31. 31.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
32. 32.📏 How many ohms (Ω) is 2.8 kΩ?
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
34. 34.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
35. 35.True or false: the push of a cell is measured in watts (W). (a) False (b) True
36. 36.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
37. 37.📏 How many amperes (A) is 1650 mA? =
38. 38.True or false: how much a part resists is measured in volts (V). (a) True (b) False
39. 39.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
40. 40.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)

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