Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 776 · 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) energy used each second (c) resistance (d) the flow of charge
2. 2.True or false: power is measured in volts (V). (a) False (b) True
3. 3.True or false: energy used each second is measured in volts (V). (a) True (b) False
4. 4.Which of these is measured in amperes (A)? (a) current (b) power (c) resistance (d) how much a part resists
5. 5.📏 How many kilowatts (kW) is 4200 W? =
6. 6.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
7. 7.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
9. 9.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
10. 10.True or false: the ammeter measures voltage. (a) True (b) False
11. 11.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
12. 12.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
13. 13.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
14. 14.True or false: current is measured in amperes (A). (a) True (b) False
15. 15.📏 How many kilowatts (kW) is 800 W? =
16. 16.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) the flow of water (d) a narrow pipe
17. 17.📏 How many amperes (A) is 1470 mA? =
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
19. 19.📏 How many kilo-ohms (kΩ) is 10000 Ω? =
20. 20.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
21. 21.True or false: energy used each second is measured in watts (W). (a) False (b) True
22. 22.📏 How many ohms (Ω) is 2 kΩ?
23. 23.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
24. 24.True or false: the voltmeter is joined in series. (a) False (b) True
25. 25.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1024 (d) 1000
26. 26.📏 How many ohms (Ω) is 2.9 kΩ?
27. 27.True or false: the ammeter is joined across a part. (a) True (b) False
28. 28.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
29. 29.📏 How many watts (W) is 2.3 kW?
30. 30.📏 How many ohms (Ω) is 5.3 kΩ?
31. 31.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
32. 32.📏 How many kilo-ohms (kΩ) is 1000 Ω? =
33. 33.True or false: resistance is measured in watts (W). (a) True (b) False
34. 34.📏 How many amperes (A) is 1750 mA? =
35. 35.True or false: the ammeter is joined in series. (a) False (b) True
36. 36.📏 How many ohms (Ω) is 3.9 kΩ?
37. 37.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) voltage (d) power
38. 38.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
39. 39.📏 How many watts (W) is 3.7 kW?
40. 40.True or false: the push of a cell is measured in volts (V). (a) True (b) False

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