Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 484 · 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 across a part? (a) voltmeter (b) ammeter
2. 2.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
3. 3.Which of these is measured in ohms (Ω)? (a) power (b) energy used each second (c) how much a part resists (d) the flow of charge
4. 4.True or false: the ammeter measures current. (a) False (b) True
5. 5.True or false: current is measured in ohms (Ω). (a) True (b) False
6. 6.📏 How many ohms (Ω) is 6.2 kΩ?
7. 7.True or false: voltage is measured in volts (V). (a) False (b) True
8. 8.📏 How many watts (W) is 4.1 kW?
9. 9.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
10. 10.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) how much a part resists (d) energy used each second
11. 11.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the pipe colour (d) the water pressure
12. 12.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) a bigger tank (d) the water pressure
13. 13.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
14. 14.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) current (d) the push of a cell
15. 15.True or false: the ammeter is joined in series. (a) False (b) True
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
17. 17.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
18. 18.📏 How many milliamperes (mA) is 1.74 A?
19. 19.True or false: the voltmeter is joined across a part. (a) True (b) False
20. 20.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
21. 21.📏 How many ohms (Ω) is 8.9 kΩ?
22. 22.📏 How many milliamperes (mA) is 0.05 A?
23. 23.Which of these is measured in volts (V)? (a) power (b) resistance (c) energy used each second (d) the push of a cell
24. 24.Which of these is measured in watts (W)? (a) voltage (b) power (c) how much a part resists (d) resistance
25. 25.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
26. 26.True or false: the ammeter measures voltage. (a) False (b) True
27. 27.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) the pipe colour
28. 28.📏 How many watts (W) is 3.6 kW?
29. 29.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
30. 30.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
31. 31.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
32. 32.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
33. 33.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
34. 34.📏 How many watts (W) is 1.1 kW?
35. 35.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
36. 36.📏 Which unit measures the push of a cell? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
37. 37.📏 How many milliamperes (mA) is 0.23 A?
38. 38.True or false: the ammeter is joined across a part. (a) True (b) False
39. 39.True or false: current is measured in amperes (A). (a) True (b) False
40. 40.📏 How many milliamperes (mA) is 2.73 A?

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