Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 443 · 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.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
2. 2.📏 Which unit measures the push of a cell? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
3. 3.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
4. 4.📏 How many amperes (A) is 880 mA? =
5. 5.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
6. 6.True or false: resistance is measured in amperes (A). (a) False (b) True
7. 7.True or false: the ammeter is joined across a part. (a) True (b) False
8. 8.Which of these is measured in volts (V)? (a) the flow of charge (b) the push of a cell (c) energy used each second (d) how much a part resists
9. 9.True or false: current is measured in amperes (A). (a) False (b) True
10. 10.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
11. 11.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
12. 12.📏 How many amperes (A) is 990 mA? =
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.True or false: the voltmeter is joined across a part. (a) False (b) True
15. 15.True or false: resistance is measured in ohms (Ω). (a) False (b) True
16. 16.Which of these is measured in amperes (A)? (a) energy used each second (b) voltage (c) how much a part resists (d) current
17. 17.📏 How many kilowatts (kW) is 4600 W? =
18. 18.Which of these is measured in watts (W)? (a) how much a part resists (b) current (c) the flow of charge (d) energy used each second
19. 19.True or false: voltage is measured in amperes (A). (a) False (b) True
20. 20.📏 How many milliamperes (mA) is 2.24 A?
21. 21.Which of these is measured in volts (V)? (a) resistance (b) power (c) voltage (d) how much a part resists
22. 22.True or false: the push of a cell is measured in volts (V). (a) True (b) False
23. 23.True or false: the flow of charge is measured in volts (V). (a) False (b) True
24. 24.True or false: the ammeter measures voltage. (a) True (b) False
25. 25.Which of these is measured in amperes (A)? (a) the flow of charge (b) energy used each second (c) resistance (d) how much a part resists
26. 26.📏 How many kilo-ohms (kΩ) is 400 Ω? =
27. 27.📏 How many milliamperes (mA) is 1.74 A?
28. 28.📏 How many amperes (A) is 1210 mA? =
29. 29.True or false: voltage is measured in watts (W). (a) True (b) False
30. 30.📏 How many watts (W) is 1.6 kW?
31. 31.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
32. 32.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
33. 33.True or false: voltage is measured in volts (V). (a) True (b) False
34. 34.True or false: the ammeter is joined in series. (a) False (b) True
35. 35.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) current (d) voltage
36. 36.True or false: how much a part resists is measured in volts (V). (a) True (b) False
37. 37.True or false: current is measured in volts (V). (a) False (b) True
38. 38.📏 How many amperes (A) is 1260 mA? =
39. 39.📏 How many kilo-ohms (kΩ) is 9100 Ω? =
40. 40.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) the pipe colour

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