Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 802 · 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 kilo-ohms (kΩ) is 9600 Ω? =
2. 2.📏 How many kilowatts (kW) is 3800 W? =
3. 3.📏 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
4. 4.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
5. 5.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
6. 6.True or false: resistance is measured in amperes (A). (a) False (b) True
7. 7.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) power (d) resistance
8. 8.True or false: the voltmeter measures current. (a) True (b) False
9. 9.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.True or false: current is measured in amperes (A). (a) True (b) False
12. 12.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
13. 13.True or false: the push of a cell is measured in volts (V). (a) True (b) False
14. 14.📏 How many watts (W) is 0.4 kW?
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
16. 16.True or false: the voltmeter is joined in series. (a) True (b) False
17. 17.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 1000 (d) 10
18. 18.📏 How many watts (W) is 0.8 kW?
19. 19.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
20. 20.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
22. 22.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
23. 23.📏 How many amperes (A) is 1370 mA? =
24. 24.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
25. 25.True or false: the ammeter measures voltage. (a) False (b) True
26. 26.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
27. 27.True or false: the voltmeter measures voltage. (a) False (b) True
28. 28.📏 How many watts (W) is 1.2 kW?
29. 29.📏 How many kilowatts (kW) is 2500 W? =
30. 30.Which of these is measured in ohms (Ω)? (a) energy used each second (b) voltage (c) the push of a cell (d) resistance
31. 31.True or false: current is measured in ohms (Ω). (a) True (b) False
32. 32.📏 How many milliamperes (mA) is 1.13 A?
33. 33.Which of these is measured in amperes (A)? (a) how much a part resists (b) power (c) the flow of charge (d) energy used each second
34. 34.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
35. 35.True or false: power is measured in watts (W). (a) False (b) True
36. 36.📏 How many watts (W) is 2.1 kW?
37. 37.True or false: resistance is measured in watts (W). (a) True (b) False
38. 38.📏 How many watts (W) is 2.7 kW?
39. 39.True or false: how much a part resists is measured in volts (V). (a) True (b) False
40. 40.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)

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