Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 455 · 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 is joined in series? (a) voltmeter (b) ammeter
2. 2.True or false: voltage is measured in volts (V). (a) True (b) False
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
4. 4.True or false: the voltmeter measures voltage. (a) False (b) True
5. 5.📏 How many ohms (Ω) is 2.6 kΩ?
6. 6.True or false: current is measured in volts (V). (a) False (b) True
7. 7.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) how much a part resists (d) voltage
8. 8.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) a narrow pipe (d) the flow of water
9. 9.📏 How many watts (W) is 1.4 kW?
10. 10.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
11. 11.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
12. 12.Which of these is measured in volts (V)? (a) how much a part resists (b) resistance (c) current (d) voltage
13. 13.True or false: the push of a cell is measured in volts (V). (a) True (b) False
14. 14.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
15. 15.True or false: the voltmeter measures current. (a) False (b) True
16. 16.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
17. 17.True or false: the ammeter measures voltage. (a) False (b) True
18. 18.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
19. 19.True or false: the push of a cell is measured in watts (W). (a) False (b) True
20. 20.📏 How many amperes (A) is 1420 mA? =
21. 21.📏 How many amperes (A) is 200 mA? =
22. 22.True or false: the flow of charge is measured in watts (W). (a) False (b) True
23. 23.📏 How many watts (W) is 1.2 kW?
24. 24.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) the push of a cell (c) resistance (d) energy used each second
25. 25.📏 How many ohms (Ω) is 1.9 kΩ?
26. 26.📏 How many amperes (A) is 2470 mA? =
27. 27.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) a narrow pipe (d) the water pressure
28. 28.True or false: power is measured in watts (W). (a) False (b) True
29. 29.True or false: the voltmeter is joined in series. (a) False (b) True
30. 30.📏 How many kilo-ohms (kΩ) is 3300 Ω? =
31. 31.📏 How many watts (W) is 4.5 kW?
32. 32.True or false: the ammeter is joined across a part. (a) False (b) True
33. 33.📏 How many watts (W) is 0.5 kW?
34. 34.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
35. 35.True or false: current is measured in amperes (A). (a) True (b) False
36. 36.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
37. 37.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the pipe colour (d) the tap handle
38. 38.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
39. 39.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
40. 40.True or false: resistance is measured in ohms (Ω). (a) True (b) False

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