Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 702 · 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 of these is measured in amperes (A)? (a) voltage (b) current (c) the push of a cell (d) how much a part resists
2. 2.True or false: the voltmeter is joined in series. (a) False (b) True
3. 3.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
4. 4.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
5. 5.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
6. 6.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) current (d) the flow of charge
7. 7.True or false: the push of a cell is measured in volts (V). (a) False (b) True
8. 8.True or false: the ammeter is joined in series. (a) False (b) True
9. 9.📏 How many watts (W) is 4.4 kW?
10. 10.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) current (d) how much a part resists
11. 11.True or false: the ammeter measures current. (a) False (b) True
12. 12.📏 How many ohms (Ω) is 1.2 kΩ?
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
14. 14.True or false: resistance is measured in volts (V). (a) True (b) False
15. 15.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) voltage (c) resistance (d) power
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
17. 17.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
18. 18.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) a bigger tank
19. 19.True or false: the voltmeter is joined across a part. (a) False (b) True
20. 20.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
21. 21.📏 How many milliamperes (mA) is 1.63 A?
22. 22.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
23. 23.📏 How many watts (W) is 0.6 kW?
24. 24.True or false: the voltmeter measures current. (a) False (b) True
25. 25.Which of these is measured in amperes (A)? (a) energy used each second (b) voltage (c) how much a part resists (d) the flow of charge
26. 26.True or false: voltage is measured in volts (V). (a) True (b) False
27. 27.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
28. 28.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
29. 29.True or false: the ammeter is joined across a part. (a) True (b) False
30. 30.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
31. 31.📏 How many amperes (A) is 1210 mA? =
32. 32.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) the pipe colour (d) a narrow pipe
33. 33.📏 How many amperes (A) is 330 mA? =
34. 34.True or false: the voltmeter measures voltage. (a) False (b) True
35. 35.📏 How many kilo-ohms (kΩ) is 900 Ω? =
36. 36.📏 How many kilo-ohms (kΩ) is 2900 Ω? =
37. 37.📏 How many ohms (Ω) is 9.3 kΩ?
38. 38.True or false: voltage is measured in amperes (A). (a) False (b) True
39. 39.📏 How many ohms (Ω) is 6.6 kΩ?
40. 40.Which of these is measured in ohms (Ω)? (a) power (b) how much a part resists (c) energy used each second (d) voltage

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