Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 887 · 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 unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
3. 3.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
4. 4.True or false: the voltmeter measures voltage. (a) False (b) True
5. 5.📏 How many kilowatts (kW) is 1200 W? =
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
7. 7.📏 How many milliamperes (mA) is 2 A?
8. 8.📏 How many ohms (Ω) is 6.6 kΩ?
9. 9.True or false: how much a part resists is measured in volts (V). (a) False (b) True
10. 10.Which of these is measured in watts (W)? (a) current (b) the push of a cell (c) power (d) how much a part resists
11. 11.True or false: the voltmeter is joined across a part. (a) False (b) True
12. 12.📏 How many kilo-ohms (kΩ) is 8000 Ω? =
13. 13.Which of these is measured in amperes (A)? (a) power (b) the push of a cell (c) resistance (d) the flow of charge
14. 14.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
15. 15.Which of these is measured in volts (V)? (a) voltage (b) power (c) the flow of charge (d) current
16. 16.📏 How many watts (W) is 3.8 kW?
17. 17.📏 How many kilo-ohms (kΩ) is 6400 Ω? =
18. 18.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
19. 19.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) the flow of charge (c) resistance (d) current
20. 20.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
21. 21.True or false: voltage is measured in ohms (Ω). (a) False (b) True
22. 22.True or false: the ammeter measures voltage. (a) False (b) True
23. 23.Which of these is measured in ohms (Ω)? (a) energy used each second (b) how much a part resists (c) the flow of charge (d) voltage
24. 24.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
25. 25.📏 How many amperes (A) is 940 mA? =
26. 26.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
27. 27.📏 How many kilo-ohms (kΩ) is 3400 Ω? =
28. 28.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
29. 29.📏 How many kilowatts (kW) is 2550 W? =
30. 30.📏 How many watts (W) is 0.5 kW?
31. 31.True or false: the push of a cell is measured in volts (V). (a) True (b) False
32. 32.Which of these is measured in watts (W)? (a) voltage (b) energy used each second (c) the flow of charge (d) the push of a cell
33. 33.📏 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
34. 34.📏 How many amperes (A) is 180 mA? =
35. 35.True or false: energy used each second is measured in watts (W). (a) True (b) False
36. 36.📏 How many milliamperes (mA) is 2.25 A?
37. 37.True or false: voltage is measured in volts (V). (a) False (b) True
38. 38.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
39. 39.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
40. 40.📏 How many milliamperes (mA) is 1.47 A?

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