Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 782 · 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.True or false: the voltmeter measures voltage. (a) True (b) False
2. 2.📏 How many watts (W) is 0.8 kW?
3. 3.📏 How many amperes (A) is 500 mA? =
4. 4.Which of these is measured in watts (W)? (a) the flow of charge (b) energy used each second (c) voltage (d) the push of a cell
5. 5.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
6. 6.True or false: voltage is measured in watts (W). (a) True (b) False
7. 7.📏 How many kilowatts (kW) is 3550 W? =
8. 8.📏 How many amperes (A) is 1550 mA? =
9. 9.Which of these is measured in watts (W)? (a) the push of a cell (b) power (c) voltage (d) current
10. 10.📏 How many milliamperes (mA) is 0.9 A?
11. 11.Which of these is measured in ohms (Ω)? (a) power (b) energy used each second (c) how much a part resists (d) the push of a cell
12. 12.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
13. 13.📏 How many watts (W) is 1.9 kW?
14. 14.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
15. 15.True or false: the voltmeter is joined in series. (a) False (b) True
16. 16.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
17. 17.Which of these is measured in amperes (A)? (a) energy used each second (b) the push of a cell (c) how much a part resists (d) the flow of charge
18. 18.📏 How many kilowatts (kW) is 100 W? =
19. 19.True or false: resistance is measured in amperes (A). (a) True (b) False
20. 20.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
21. 21.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) the flow of charge (d) the push of a cell
22. 22.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
23. 23.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
24. 24.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
25. 25.📏 How many ohms (Ω) is 6.4 kΩ?
26. 26.📏 How many amperes (A) is 140 mA? =
27. 27.Which of these is measured in volts (V)? (a) current (b) resistance (c) the flow of charge (d) voltage
28. 28.📏 How many kilowatts (kW) is 2750 W? =
29. 29.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
30. 30.📏 How many kilo-ohms (kΩ) is 8100 Ω? =
31. 31.True or false: current is measured in ohms (Ω). (a) True (b) False
32. 32.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) power (c) resistance (d) current
33. 33.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) a narrow pipe (d) the water pressure
34. 34.True or false: energy used each second is measured in volts (V). (a) True (b) False
35. 35.📏 How many watts (W) is 4.7 kW?
36. 36.True or false: the ammeter is joined in series. (a) False (b) True
37. 37.📏 How many kilowatts (kW) is 2300 W? =
38. 38.True or false: the push of a cell is measured in watts (W). (a) True (b) False
39. 39.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
40. 40.True or false: the ammeter is joined across a part. (a) False (b) True

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