Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 659 · 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.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
2. 2.📏 How many milliamperes (mA) is 2.35 A?
3. 3.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
4. 4.📏 How many kilo-ohms (kΩ) is 8100 Ω? =
5. 5.Which of these is measured in ohms (Ω)? (a) voltage (b) current (c) how much a part resists (d) the push of a cell
6. 6.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
7. 7.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
8. 8.📏 How many watts (W) is 4.7 kW?
9. 9.True or false: the ammeter measures voltage. (a) True (b) False
10. 10.📏 How many amperes (A) is 730 mA? =
11. 11.True or false: the ammeter is joined across a part. (a) False (b) True
12. 12.True or false: the voltmeter is joined across a part. (a) False (b) True
13. 13.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
14. 14.True or false: the voltmeter is joined in series. (a) False (b) True
15. 15.Which of these is measured in watts (W)? (a) the flow of charge (b) voltage (c) energy used each second (d) current
16. 16.📏 How many watts (W) is 3.3 kW?
17. 17.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
18. 18.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
19. 19.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
20. 20.Which of these is measured in volts (V)? (a) the push of a cell (b) power (c) the flow of charge (d) energy used each second
21. 21.📏 How many watts (W) is 3.5 kW?
22. 22.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
23. 23.📏 How many watts (W) is 4.6 kW?
24. 24.True or false: the push of a cell is measured in watts (W). (a) True (b) False
25. 25.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
26. 26.True or false: energy used each second is measured in watts (W). (a) True (b) False
27. 27.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
28. 28.True or false: how much a part resists is measured in watts (W). (a) True (b) False
29. 29.True or false: the voltmeter measures voltage. (a) False (b) True
30. 30.True or false: current is measured in volts (V). (a) True (b) False
31. 31.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) resistance (d) the flow of charge
32. 32.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
33. 33.📏 How many kilo-ohms (kΩ) is 2900 Ω? =
34. 34.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
35. 35.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the pipe colour (d) the water pressure
36. 36.True or false: power is measured in watts (W). (a) True (b) False
37. 37.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) a bigger tank
38. 38.Which of these is measured in watts (W)? (a) power (b) resistance (c) current (d) the push of a cell
39. 39.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 1000 (d) 10
40. 40.Which of these is measured in volts (V)? (a) current (b) power (c) energy used each second (d) voltage

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