Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 430 · 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) voltmeter (b) ammeter
2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 10 (d) 1000
3. 3.True or false: energy used each second is measured in volts (V). (a) True (b) False
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
5. 5.📏 How many kilowatts (kW) is 2700 W? =
6. 6.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) resistance (d) the flow of charge
7. 7.📏 How many ohms (Ω) is 2 kΩ?
8. 8.📏 How many watts (W) is 3.9 kW?
9. 9.📏 How many amperes (A) is 2700 mA? =
10. 10.True or false: resistance is measured in volts (V). (a) True (b) False
11. 11.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
12. 12.Which of these is measured in watts (W)? (a) the flow of charge (b) resistance (c) voltage (d) energy used each second
13. 13.True or false: the voltmeter measures voltage. (a) True (b) False
14. 14.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
15. 15.True or false: the voltmeter is joined across a part. (a) True (b) False
16. 16.Which of these is measured in amperes (A)? (a) current (b) power (c) how much a part resists (d) energy used each second
17. 17.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
18. 18.True or false: the voltmeter measures current. (a) False (b) True
19. 19.📏 How many amperes (A) is 1530 mA? =
20. 20.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
21. 21.True or false: the voltmeter is joined in series. (a) False (b) True
22. 22.📏 How many watts (W) is 2.1 kW?
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
24. 24.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
25. 25.📏 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
26. 26.True or false: current is measured in ohms (Ω). (a) True (b) False
27. 27.📏 How many watts (W) is 3.4 kW?
28. 28.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) energy used each second (d) how much a part resists
29. 29.True or false: the ammeter is joined across a part. (a) False (b) True
30. 30.True or false: voltage is measured in volts (V). (a) False (b) True
31. 31.Which of these is measured in watts (W)? (a) voltage (b) power (c) the flow of charge (d) the push of a cell
32. 32.📏 How many watts (W) is 3.3 kW?
33. 33.Which of these is measured in volts (V)? (a) energy used each second (b) current (c) resistance (d) the push of a cell
34. 34.True or false: the ammeter measures voltage. (a) True (b) False
35. 35.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
36. 36.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
37. 37.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
38. 38.📏 How many ohms (Ω) is 5.3 kΩ?
39. 39.True or false: power is measured in ohms (Ω). (a) False (b) True
40. 40.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)

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