Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 302 · 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 milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 1000 (d) 60
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
4. 4.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
7. 7.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
8. 8.📏 How many watts (W) is 4.8 kW?
9. 9.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) power (d) the push of a cell
10. 10.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) voltage (d) the flow of charge
11. 11.📏 How many ohms (Ω) is 7.6 kΩ?
12. 12.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
13. 13.📏 How many amperes (A) is 2030 mA? =
14. 14.True or false: voltage is measured in amperes (A). (a) True (b) False
15. 15.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
16. 16.📏 How many milliamperes (mA) is 1.71 A?
17. 17.📏 How many ohms (Ω) is 8 kΩ?
18. 18.📏 How many milliamperes (mA) is 0.58 A?
19. 19.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
20. 20.📏 How many kilo-ohms (kΩ) is 4100 Ω? =
21. 21.📏 How many watts (W) is 2 kW?
22. 22.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
23. 23.📏 How many kilowatts (kW) is 2100 W? =
24. 24.True or false: power is measured in amperes (A). (a) True (b) False
25. 25.True or false: resistance is measured in watts (W). (a) False (b) True
26. 26.📏 How many amperes (A) is 2900 mA? =
27. 27.True or false: the voltmeter measures current. (a) True (b) False
28. 28.True or false: the push of a cell is measured in volts (V). (a) False (b) True
29. 29.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
30. 30.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 10 (d) 1000
31. 31.True or false: resistance is measured in volts (V). (a) True (b) False
32. 32.True or false: current is measured in watts (W). (a) True (b) False
33. 33.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
34. 34.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
35. 35.📏 Which unit measures energy used each second? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
36. 36.True or false: the voltmeter measures voltage. (a) False (b) True
37. 37.True or false: the ammeter measures voltage. (a) True (b) False
38. 38.True or false: the ammeter is joined in series. (a) True (b) False
39. 39.📏 How many kilo-ohms (kΩ) is 900 Ω? =
40. 40.True or false: the flow of charge is measured in watts (W). (a) False (b) True

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