Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 60 · 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 of these is measured in volts (V)? (a) current (b) the flow of charge (c) resistance (d) voltage
2. 2.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) how much a part resists (d) power
3. 3.True or false: the flow of charge is measured in volts (V). (a) False (b) True
4. 4.True or false: the voltmeter measures current. (a) True (b) False
5. 5.📏 How many watts (W) is 2.3 kW?
6. 6.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1024 (d) 1000
7. 7.📏 How many kilowatts (kW) is 2200 W? =
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
9. 9.📏 How many ohms (Ω) is 9 kΩ?
10. 10.True or false: energy used each second is measured in watts (W). (a) True (b) False
11. 11.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
12. 12.📏 How many amperes (A) is 880 mA? =
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
14. 14.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
15. 15.Which of these is measured in ohms (Ω)? (a) current (b) energy used each second (c) resistance (d) power
16. 16.True or false: the ammeter measures voltage. (a) True (b) False
17. 17.📏 How many kilo-ohms (kΩ) is 6200 Ω? =
18. 18.True or false: the voltmeter measures voltage. (a) False (b) True
19. 19.True or false: voltage is measured in volts (V). (a) False (b) True
20. 20.True or false: the voltmeter is joined in series. (a) True (b) False
21. 21.True or false: the voltmeter is joined across a part. (a) False (b) True
22. 22.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
23. 23.📏 How many ohms (Ω) is 2.4 kΩ?
24. 24.True or false: the push of a cell is measured in volts (V). (a) False (b) True
25. 25.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the flow of water (d) the water pressure
26. 26.📏 How many ohms (Ω) is 3.5 kΩ?
27. 27.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
28. 28.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
29. 29.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
30. 30.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
31. 31.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
32. 32.True or false: the ammeter is joined across a part. (a) False (b) True
33. 33.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
34. 34.📏 How many kilo-ohms (kΩ) is 4900 Ω? =
35. 35.📏 How many kilo-ohms (kΩ) is 8600 Ω? =
36. 36.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) current (d) how much a part resists
37. 37.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the water pressure (d) the tap handle
38. 38.True or false: resistance is measured in volts (V). (a) True (b) False
39. 39.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
40. 40.Which of these is measured in watts (W)? (a) energy used each second (b) current (c) voltage (d) the flow of charge

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