Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 419 · 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.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
2. 2.True or false: current is measured in amperes (A). (a) True (b) False
3. 3.Which of these is measured in volts (V)? (a) how much a part resists (b) the flow of charge (c) the push of a cell (d) resistance
4. 4.📏 How many ohms (Ω) is 8.6 kΩ?
5. 5.📏 How many watts (W) is 2.5 kW?
6. 6.📏 How many kilowatts (kW) is 2950 W? =
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
8. 8.📏 How many kilowatts (kW) is 500 W? =
9. 9.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
10. 10.True or false: the voltmeter is joined across a part. (a) False (b) True
11. 11.📏 How many ohms (Ω) is 2.9 kΩ?
12. 12.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the pipe colour (d) the flow of water
15. 15.True or false: the ammeter measures current. (a) False (b) True
16. 16.True or false: the voltmeter is joined in series. (a) True (b) False
17. 17.True or false: the voltmeter measures voltage. (a) False (b) True
18. 18.📏 How many watts (W) is 3.1 kW?
19. 19.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
20. 20.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
21. 21.True or false: the flow of charge is measured in volts (V). (a) False (b) True
22. 22.True or false: the push of a cell is measured in volts (V). (a) True (b) False
23. 23.Which of these is measured in volts (V)? (a) voltage (b) the flow of charge (c) current (d) resistance
24. 24.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
25. 25.True or false: the ammeter is joined across a part. (a) False (b) True
26. 26.True or false: energy used each second is measured in watts (W). (a) False (b) True
27. 27.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the flow of water (d) the water pressure
28. 28.📏 How many ohms (Ω) is 2.6 kΩ?
29. 29.📏 How many watts (W) is 2.6 kW?
30. 30.📏 How many ohms (Ω) is 4.8 kΩ?
31. 31.📏 How many watts (W) is 0.6 kW?
32. 32.📏 How many milliamperes (mA) is 2.88 A?
33. 33.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
34. 34.True or false: the ammeter is joined in series. (a) True (b) False
35. 35.True or false: power is measured in watts (W). (a) False (b) True
36. 36.📏 How many kilo-ohms (kΩ) is 6300 Ω? =
37. 37.Which of these is measured in ohms (Ω)? (a) resistance (b) energy used each second (c) power (d) the flow of charge
38. 38.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 100 (d) 60
39. 39.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
40. 40.📏 How many amperes (A) is 1400 mA? =

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