Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 567 · 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 50 W? =
2. 2.True or false: resistance is measured in volts (V). (a) False (b) True
3. 3.📏 How many kilowatts (kW) is 1700 W? =
4. 4.True or false: the voltmeter is joined in series. (a) False (b) True
5. 5.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
6. 6.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
7. 7.📏 How many milliamperes (mA) is 1.09 A?
8. 8.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
9. 9.📏 How many kilowatts (kW) is 3800 W? =
10. 10.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
11. 11.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) how much a part resists (d) energy used each second
12. 12.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
13. 13.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
14. 14.True or false: the voltmeter measures voltage. (a) True (b) False
15. 15.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) current (d) resistance
16. 16.True or false: the ammeter is joined across a part. (a) False (b) True
17. 17.📏 How many amperes (A) is 2450 mA? =
18. 18.Which of these is measured in ohms (Ω)? (a) power (b) voltage (c) the flow of charge (d) how much a part resists
19. 19.Which of these is measured in ohms (Ω)? (a) current (b) voltage (c) resistance (d) the push of a cell
20. 20.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
21. 21.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1000 (d) 1024
22. 22.True or false: the voltmeter measures current. (a) True (b) False
23. 23.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
24. 24.True or false: the voltmeter is joined across a part. (a) True (b) False
25. 25.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
27. 27.📏 How many kilo-ohms (kΩ) is 9300 Ω? =
28. 28.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
29. 29.📏 How many ohms (Ω) is 8.2 kΩ?
30. 30.📏 How many watts (W) is 1.4 kW?
31. 31.True or false: the ammeter measures voltage. (a) True (b) False
32. 32.📏 How many ohms (Ω) is 5.9 kΩ?
33. 33.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the flow of water (d) the water pressure
34. 34.📏 How many watts (W) is 0.2 kW?
35. 35.True or false: energy used each second is measured in watts (W). (a) False (b) True
36. 36.📏 How many amperes (A) is 280 mA? =
37. 37.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
38. 38.📏 How many watts (W) is 2 kW?
39. 39.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
40. 40.Which of these is measured in volts (V)? (a) power (b) the push of a cell (c) the flow of charge (d) current

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