Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 886 · 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: energy used each second is measured in watts (W). (a) False (b) True
2. 2.True or false: the ammeter measures current. (a) False (b) True
3. 3.📏 How many watts (W) is 1.8 kW?
4. 4.Which of these is measured in volts (V)? (a) energy used each second (b) voltage (c) power (d) the flow of charge
5. 5.True or false: the voltmeter is joined in series. (a) True (b) False
6. 6.True or false: resistance is measured in volts (V). (a) True (b) False
7. 7.📏 How many ohms (Ω) is 7.1 kΩ?
8. 8.True or false: the ammeter is joined across a part. (a) True (b) False
9. 9.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
10. 10.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) the flow of charge (d) energy used each second
11. 11.True or false: the voltmeter measures voltage. (a) False (b) True
12. 12.📏 How many milliamperes (mA) is 2.8 A?
13. 13.True or false: the voltmeter measures current. (a) True (b) False
14. 14.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
15. 15.True or false: the ammeter is joined in series. (a) False (b) True
16. 16.True or false: the ammeter measures voltage. (a) False (b) True
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
18. 18.Which of these is measured in amperes (A)? (a) voltage (b) energy used each second (c) power (d) current
19. 19.Which of these is measured in ohms (Ω)? (a) current (b) voltage (c) resistance (d) power
20. 20.📏 How many watts (W) is 3.2 kW?
21. 21.📏 How many kilowatts (kW) is 3800 W? =
22. 22.📏 How many ohms (Ω) is 3.4 kΩ?
23. 23.📏 How many watts (W) is 0.2 kW?
24. 24.Which of these is measured in ohms (Ω)? (a) energy used each second (b) how much a part resists (c) power (d) the push of a cell
25. 25.📏 How many milliamperes (mA) is 1.73 A?
26. 26.📏 How many kilo-ohms (kΩ) is 2800 Ω? =
27. 27.True or false: voltage is measured in ohms (Ω). (a) True (b) False
28. 28.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
29. 29.📏 How many amperes (A) is 2580 mA? =
30. 30.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
31. 31.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) the pipe colour (d) a narrow pipe
32. 32.True or false: the flow of charge is measured in watts (W). (a) True (b) False
33. 33.📏 How many watts (W) is 4.8 kW?
34. 34.📏 How many ohms (Ω) is 8.1 kΩ?
35. 35.True or false: current is measured in volts (V). (a) True (b) False
36. 36.📏 How many kilowatts (kW) is 4400 W? =
37. 37.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
38. 38.True or false: how much a part resists is measured in watts (W). (a) False (b) True
39. 39.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
40. 40.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)

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