Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 438 · 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 kilowatts (kW) is 5000 W? =
2. 2.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) current (d) energy used each second
3. 3.Which of these is measured in volts (V)? (a) voltage (b) how much a part resists (c) current (d) the flow of charge
4. 4.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
5. 5.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
6. 6.True or false: the ammeter measures voltage. (a) False (b) True
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
8. 8.📏 How many amperes (A) is 2580 mA? =
9. 9.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
10. 10.True or false: the voltmeter measures voltage. (a) False (b) True
11. 11.📏 How many watts (W) is 0.9 kW?
12. 12.📏 How many kilowatts (kW) is 1450 W? =
13. 13.📏 How many watts (W) is 2.4 kW?
14. 14.📏 How many watts (W) is 2.1 kW?
15. 15.True or false: resistance is measured in ohms (Ω). (a) False (b) True
16. 16.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
18. 18.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
19. 19.📏 How many watts (W) is 1.8 kW?
20. 20.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
21. 21.True or false: the voltmeter is joined across a part. (a) False (b) True
22. 22.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
23. 23.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
24. 24.True or false: power is measured in watts (W). (a) False (b) True
25. 25.📏 How many milliamperes (mA) is 2.64 A?
26. 26.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
27. 27.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
28. 28.True or false: the ammeter is joined across a part. (a) False (b) True
29. 29.📏 How many ohms (Ω) is 6.5 kΩ?
30. 30.True or false: how much a part resists is measured in watts (W). (a) True (b) False
31. 31.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
32. 32.Which of these is measured in ohms (Ω)? (a) power (b) energy used each second (c) how much a part resists (d) the flow of charge
33. 33.Which of these is measured in ohms (Ω)? (a) resistance (b) the flow of charge (c) the push of a cell (d) energy used each second
34. 34.📏 How many amperes (A) is 650 mA? =
35. 35.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
36. 36.True or false: the ammeter is joined in series. (a) True (b) False
37. 37.True or false: the flow of charge is measured in volts (V). (a) False (b) True
38. 38.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the flow of water (d) the water pressure
39. 39.📏 How many ohms (Ω) is 5.7 kΩ?
40. 40.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)

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