Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 131 · 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.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
2. 2.True or false: resistance is measured in volts (V). (a) False (b) True
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
4. 4.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) the pipe colour
5. 5.True or false: energy used each second is measured in volts (V). (a) True (b) False
6. 6.True or false: the push of a cell is measured in volts (V). (a) True (b) False
7. 7.True or false: the ammeter measures voltage. (a) True (b) False
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the water tank lid (d) the tap handle
9. 9.True or false: power is measured in watts (W). (a) True (b) False
10. 10.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
11. 11.Which of these is measured in volts (V)? (a) how much a part resists (b) voltage (c) resistance (d) current
12. 12.True or false: voltage is measured in ohms (Ω). (a) True (b) False
13. 13.📏 How many amperes (A) is 1690 mA? =
14. 14.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
15. 15.True or false: current is measured in watts (W). (a) False (b) True
16. 16.📏 How many kilowatts (kW) is 50 W? =
17. 17.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
18. 18.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) the flow of water (d) a narrow pipe
19. 19.📏 How many amperes (A) is 1870 mA? =
20. 20.📏 How many watts (W) is 2.5 kW?
21. 21.True or false: the push of a cell is measured in watts (W). (a) True (b) False
22. 22.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
23. 23.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
24. 24.📏 How many amperes (A) is 510 mA? =
25. 25.True or false: voltage is measured in amperes (A). (a) False (b) True
26. 26.📏 How many milliamperes (mA) is 0.13 A?
27. 27.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) resistance (d) current
28. 28.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 100 (d) 60
29. 29.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
30. 30.True or false: the voltmeter measures voltage. (a) False (b) True
31. 31.📏 How many watts (W) is 1.3 kW?
32. 32.📏 How many ohms (Ω) is 6.9 kΩ?
33. 33.True or false: the ammeter is joined in series. (a) False (b) True
34. 34.True or false: resistance is measured in ohms (Ω). (a) False (b) True
35. 35.📏 How many milliamperes (mA) is 0.32 A?
36. 36.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
37. 37.True or false: how much a part resists is measured in watts (W). (a) True (b) False
38. 38.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
39. 39.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
40. 40.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter

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