Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 767 · 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 is joined across a part. (a) True (b) False
2. 2.True or false: voltage is measured in volts (V). (a) False (b) True
3. 3.📏 How many watts (W) is 1.2 kW?
4. 4.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
5. 5.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) the pipe colour
6. 6.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the water pressure (d) the flow of water
7. 7.True or false: the flow of charge is measured in volts (V). (a) True (b) False
8. 8.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
9. 9.📏 How many watts (W) is 0.3 kW?
10. 10.True or false: the voltmeter measures voltage. (a) True (b) False
11. 11.Which of these is measured in volts (V)? (a) how much a part resists (b) resistance (c) voltage (d) the flow of charge
12. 12.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
13. 13.📏 How many kilowatts (kW) is 1400 W? =
14. 14.📏 How many milliamperes (mA) is 1.76 A?
15. 15.True or false: the ammeter is joined across a part. (a) True (b) False
16. 16.📏 How many watts (W) is 0.8 kW?
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
18. 18.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
19. 19.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
20. 20.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) power (d) current
21. 21.Which of these is measured in watts (W)? (a) the flow of charge (b) voltage (c) how much a part resists (d) power
22. 22.📏 How many kilowatts (kW) is 3300 W? =
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
24. 24.True or false: the ammeter is joined in series. (a) False (b) True
25. 25.Which of these is measured in watts (W)? (a) current (b) energy used each second (c) how much a part resists (d) the flow of charge
26. 26.True or false: the voltmeter measures current. (a) False (b) True
27. 27.📏 How many amperes (A) is 60 mA? =
28. 28.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) voltage (c) how much a part resists (d) current
29. 29.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
30. 30.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
31. 31.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
32. 32.📏 How many kilowatts (kW) is 2100 W? =
33. 33.📏 How many amperes (A) is 1010 mA? =
34. 34.📏 How many watts (W) is 3.8 kW?
35. 35.📏 How many amperes (A) is 530 mA? =
36. 36.Which of these is measured in volts (V)? (a) energy used each second (b) the push of a cell (c) current (d) resistance
37. 37.True or false: the voltmeter is joined in series. (a) False (b) True
38. 38.📏 How many kilo-ohms (kΩ) is 5400 Ω? =
39. 39.📏 How many milliamperes (mA) is 2.06 A?
40. 40.📏 How many watts (W) is 2.2 kW?

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