Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 468 · 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.True or false: the voltmeter is joined in series. (a) True (b) False
3. 3.True or false: current is measured in amperes (A). (a) True (b) False
4. 4.True or false: the voltmeter is joined across a part. (a) True (b) False
5. 5.Which of these is measured in amperes (A)? (a) voltage (b) how much a part resists (c) power (d) current
6. 6.True or false: energy used each second is measured in amperes (A). (a) False (b) True
7. 7.📏 How many kilowatts (kW) is 1800 W? =
8. 8.📏 How many milliamperes (mA) is 2.91 A?
9. 9.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
10. 10.True or false: the ammeter measures current. (a) True (b) False
11. 11.Which of these is measured in watts (W)? (a) the push of a cell (b) current (c) resistance (d) energy used each second
12. 12.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 1000 (d) 10
13. 13.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
14. 14.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
15. 15.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) a narrow pipe (d) the flow of water
16. 16.True or false: the ammeter is joined across a part. (a) False (b) True
17. 17.📏 How many kilowatts (kW) is 1000 W? =
18. 18.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
19. 19.Which of these is measured in volts (V)? (a) resistance (b) current (c) the flow of charge (d) the push of a cell
20. 20.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
21. 21.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
22. 22.📏 How many amperes (A) is 10 mA? =
23. 23.True or false: voltage is measured in volts (V). (a) True (b) False
24. 24.True or false: power is measured in watts (W). (a) False (b) True
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
26. 26.True or false: the voltmeter measures voltage. (a) True (b) False
27. 27.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) voltage (d) how much a part resists
28. 28.📏 How many milliamperes (mA) is 1.15 A?
29. 29.True or false: how much a part resists is measured in volts (V). (a) False (b) True
30. 30.True or false: the push of a cell is measured in volts (V). (a) False (b) True
31. 31.📏 How many amperes (A) is 2140 mA? =
32. 32.📏 How many milliamperes (mA) is 0.88 A?
33. 33.Which of these is measured in amperes (A)? (a) the push of a cell (b) the flow of charge (c) power (d) energy used each second
34. 34.True or false: the ammeter is joined in series. (a) True (b) False
35. 35.True or false: the voltmeter measures current. (a) False (b) True
36. 36.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
37. 37.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
38. 38.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the water pressure (d) the flow of water
39. 39.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
40. 40.True or false: current is measured in volts (V). (a) False (b) True

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