Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 447 · 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 across a part? (a) voltmeter (b) ammeter
2. 2.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 100 (d) 10
3. 3.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
4. 4.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
5. 5.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) resistance (d) the push of a cell
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
7. 7.📏 How many milliamperes (mA) is 0.44 A?
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
9. 9.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) how much a part resists (c) energy used each second (d) current
10. 10.True or false: the voltmeter is joined in series. (a) True (b) False
11. 11.📏 How many kilowatts (kW) is 2450 W? =
12. 12.True or false: the ammeter measures voltage. (a) True (b) False
13. 13.📏 How many amperes (A) is 1880 mA? =
14. 14.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
15. 15.📏 How many amperes (A) is 550 mA? =
16. 16.📏 How many milliamperes (mA) is 1.72 A?
17. 17.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) a narrow pipe (d) the flow of water
18. 18.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
19. 19.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
20. 20.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
21. 21.📏 How many milliamperes (mA) is 1.99 A?
22. 22.True or false: current is measured in amperes (A). (a) True (b) False
23. 23.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
24. 24.True or false: power is measured in ohms (Ω). (a) True (b) False
25. 25.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
26. 26.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
27. 27.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
28. 28.True or false: the voltmeter measures current. (a) False (b) True
29. 29.True or false: the push of a cell is measured in volts (V). (a) True (b) False
30. 30.True or false: the voltmeter is joined across a part. (a) False (b) True
31. 31.📏 How many milliamperes (mA) is 2.78 A?
32. 32.True or false: voltage is measured in amperes (A). (a) True (b) False
33. 33.True or false: resistance is measured in watts (W). (a) True (b) False
34. 34.True or false: resistance is measured in ohms (Ω). (a) False (b) True
35. 35.True or false: voltage is measured in volts (V). (a) False (b) True
36. 36.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) power (d) the push of a cell
37. 37.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) energy used each second (d) resistance
38. 38.📏 How many ohms (Ω) is 5.5 kΩ?
39. 39.📏 How many kilowatts (kW) is 1350 W? =
40. 40.Which of these is measured in watts (W)? (a) power (b) current (c) resistance (d) the flow of charge

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