Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 482 · 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.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
2. 2.📏 How many kilowatts (kW) is 3700 W? =
3. 3.📏 How many amperes (A) is 2090 mA? =
4. 4.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
5. 5.True or false: the ammeter measures voltage. (a) True (b) False
6. 6.True or false: the voltmeter is joined in series. (a) True (b) False
7. 7.True or false: current is measured in amperes (A). (a) False (b) True
8. 8.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) the push of a cell (d) current
9. 9.True or false: power is measured in watts (W). (a) True (b) False
10. 10.📏 How many kilowatts (kW) is 2000 W? =
11. 11.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
12. 12.📏 Which unit measures power? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
13. 13.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the water pressure (d) the flow of water
14. 14.📏 How many amperes (A) is 390 mA? =
15. 15.📏 How many amperes (A) is 1490 mA? =
16. 16.📏 How many ohms (Ω) is 8.9 kΩ?
17. 17.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
18. 18.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) power (c) how much a part resists (d) energy used each second
19. 19.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
20. 20.True or false: power is measured in ohms (Ω). (a) False (b) True
21. 21.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
22. 22.True or false: how much a part resists is measured in watts (W). (a) True (b) False
23. 23.True or false: the voltmeter measures voltage. (a) True (b) False
24. 24.Which of these is measured in ohms (Ω)? (a) current (b) power (c) resistance (d) voltage
25. 25.Which of these is measured in amperes (A)? (a) voltage (b) the push of a cell (c) current (d) how much a part resists
26. 26.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
27. 27.True or false: resistance is measured in volts (V). (a) False (b) True
28. 28.📏 How many watts (W) is 4.4 kW?
29. 29.📏 How many milliamperes (mA) is 1.61 A?
30. 30.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
31. 31.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
32. 32.📏 How many milliamperes (mA) is 1.1 A?
33. 33.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
34. 34.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
35. 35.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
36. 36.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
37. 37.True or false: power is measured in volts (V). (a) True (b) False
38. 38.📏 How many watts (W) is 1.4 kW?
39. 39.True or false: the push of a cell is measured in volts (V). (a) False (b) True
40. 40.True or false: the ammeter is joined across a part. (a) False (b) True

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