Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 801 · 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: how much a part resists is measured in ohms (Ω). (a) False (b) True
2. 2.Which of these is measured in amperes (A)? (a) current (b) energy used each second (c) the push of a cell (d) voltage
3. 3.True or false: the voltmeter measures voltage. (a) True (b) False
4. 4.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
5. 5.📏 How many kilo-ohms (kΩ) is 8400 Ω? =
6. 6.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
7. 7.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
8. 8.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
9. 9.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
10. 10.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
11. 11.True or false: the ammeter is joined in series. (a) False (b) True
12. 12.📏 How many ohms (Ω) is 2.9 kΩ?
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
14. 14.📏 How many milliamperes (mA) is 0.9 A?
15. 15.📏 How many kilowatts (kW) is 2000 W? =
16. 16.Which of these is measured in ohms (Ω)? (a) resistance (b) power (c) the flow of charge (d) energy used each second
17. 17.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
18. 18.True or false: the push of a cell is measured in watts (W). (a) False (b) True
19. 19.True or false: current is measured in volts (V). (a) False (b) True
20. 20.📏 How many amperes (A) is 2780 mA? =
21. 21.True or false: voltage is measured in ohms (Ω). (a) True (b) False
22. 22.True or false: the ammeter measures voltage. (a) True (b) False
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
24. 24.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
25. 25.📏 How many watts (W) is 2.4 kW?
26. 26.📏 How many watts (W) is 4.6 kW?
27. 27.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
28. 28.Which of these is measured in watts (W)? (a) the flow of charge (b) resistance (c) current (d) power
29. 29.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
30. 30.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water pressure (d) the water tank lid
31. 31.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
32. 32.📏 How many ohms (Ω) is 3 kΩ?
33. 33.Which of these is measured in amperes (A)? (a) the flow of charge (b) how much a part resists (c) the push of a cell (d) energy used each second
34. 34.True or false: resistance is measured in ohms (Ω). (a) True (b) False
35. 35.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
36. 36.📏 How many kilo-ohms (kΩ) is 5800 Ω? =
37. 37.Which of these is measured in volts (V)? (a) voltage (b) the flow of charge (c) energy used each second (d) current
38. 38.📏 How many watts (W) is 0.5 kW?
39. 39.📏 How many ohms (Ω) is 2.1 kΩ?
40. 40.True or false: the voltmeter is joined across a part. (a) False (b) True

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