Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 855 · 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 ohms (Ω)? (a) voltage (b) energy used each second (c) how much a part resists (d) the flow of charge
2. 2.True or false: current is measured in amperes (A). (a) True (b) False
3. 3.📏 How many kilowatts (kW) is 4850 W? =
4. 4.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
5. 5.📏 How many milliamperes (mA) is 1.86 A?
6. 6.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
7. 7.📏 How many watts (W) is 2.7 kW?
8. 8.True or false: voltage is measured in watts (W). (a) False (b) True
9. 9.True or false: power is measured in watts (W). (a) True (b) False
10. 10.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
11. 11.True or false: the voltmeter is joined across a part. (a) False (b) True
12. 12.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
13. 13.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
14. 14.True or false: the voltmeter is joined in series. (a) False (b) True
15. 15.True or false: the push of a cell is measured in watts (W). (a) True (b) False
16. 16.📏 How many amperes (A) is 730 mA? =
17. 17.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
18. 18.True or false: voltage is measured in ohms (Ω). (a) True (b) False
19. 19.📏 How many amperes (A) is 2090 mA? =
20. 20.📏 How many kilowatts (kW) is 350 W? =
21. 21.True or false: the voltmeter measures current. (a) True (b) False
22. 22.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
23. 23.True or false: the voltmeter measures voltage. (a) False (b) True
24. 24.True or false: the ammeter measures voltage. (a) True (b) False
25. 25.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
26. 26.📏 How many watts (W) is 4.8 kW?
27. 27.Which of these is measured in volts (V)? (a) the push of a cell (b) how much a part resists (c) power (d) resistance
28. 28.📏 How many amperes (A) is 2380 mA? =
29. 29.📏 How many kilowatts (kW) is 150 W? =
30. 30.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
31. 31.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
32. 32.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
33. 33.📏 How many ohms (Ω) is 1.8 kΩ?
34. 34.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) the flow of charge (d) how much a part resists
35. 35.📏 How many ohms (Ω) is 3.7 kΩ?
36. 36.True or false: the ammeter is joined across a part. (a) True (b) False
37. 37.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
38. 38.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
39. 39.📏 How many milliamperes (mA) is 2.96 A?
40. 40.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) energy used each second (d) resistance

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