Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 894 · 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: voltage is measured in volts (V). (a) True (b) False
2. 2.📏 How many kilo-ohms (kΩ) is 5800 Ω? =
3. 3.True or false: the voltmeter is joined across a part. (a) False (b) True
4. 4.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
5. 5.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
6. 6.📏 How many kilowatts (kW) is 3800 W? =
7. 7.Which of these is measured in watts (W)? (a) current (b) how much a part resists (c) power (d) the push of a cell
8. 8.📏 How many kilowatts (kW) is 1650 W? =
9. 9.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
10. 10.True or false: the ammeter measures current. (a) True (b) False
11. 11.True or false: how much a part resists is measured in watts (W). (a) False (b) True
12. 12.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
13. 13.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) the flow of charge (d) resistance
14. 14.📏 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
15. 15.True or false: the voltmeter is joined in series. (a) False (b) True
16. 16.📏 How many ohms (Ω) is 1.3 kΩ?
17. 17.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
18. 18.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
19. 19.📏 How many watts (W) is 1.3 kW?
20. 20.📏 How many kilo-ohms (kΩ) is 3900 Ω? =
21. 21.True or false: the push of a cell is measured in volts (V). (a) True (b) False
22. 22.📏 How many milliamperes (mA) is 0.56 A?
23. 23.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
24. 24.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
26. 26.Which of these is measured in amperes (A)? (a) voltage (b) current (c) the push of a cell (d) energy used each second
27. 27.📏 How many amperes (A) is 690 mA? =
28. 28.Which of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) resistance (d) how much a part resists
29. 29.📏 How many milliamperes (mA) is 0.53 A?
30. 30.📏 How many amperes (A) is 2550 mA? =
31. 31.True or false: voltage is measured in amperes (A). (a) True (b) False
32. 32.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) voltage (c) energy used each second (d) the push of a cell
33. 33.True or false: the voltmeter measures current. (a) True (b) False
34. 34.📏 How many kilo-ohms (kΩ) is 4400 Ω? =
35. 35.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
36. 36.📏 How many kilowatts (kW) is 3000 W? =
37. 37.True or false: current is measured in volts (V). (a) True (b) False
38. 38.True or false: the voltmeter measures voltage. (a) False (b) True
39. 39.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
40. 40.📏 How many milliamperes (mA) is 2.28 A?

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