Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 444 · 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.📏 How many watts (W) is 3 kW?
2. 2.📏 How many milliamperes (mA) is 1.91 A?
3. 3.True or false: the push of a cell is measured in volts (V). (a) False (b) True
4. 4.True or false: the voltmeter measures voltage. (a) True (b) False
5. 5.True or false: energy used each second is measured in amperes (A). (a) True (b) False
6. 6.📏 How many ohms (Ω) is 0.6 kΩ?
7. 7.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
8. 8.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) the water pressure (d) a narrow pipe
9. 9.Which of these is measured in ohms (Ω)? (a) voltage (b) current (c) how much a part resists (d) the push of a cell
10. 10.📏 How many amperes (A) is 200 mA? =
11. 11.True or false: the ammeter measures current. (a) False (b) True
12. 12.Which of these is measured in volts (V)? (a) power (b) energy used each second (c) current (d) the push of a cell
13. 13.📏 How many amperes (A) is 1610 mA? =
14. 14.Which of these is measured in amperes (A)? (a) resistance (b) energy used each second (c) power (d) the flow of charge
15. 15.📏 How many ohms (Ω) is 7 kΩ?
16. 16.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
17. 17.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
19. 19.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
20. 20.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) the push of a cell (d) power
21. 21.📏 How many watts (W) is 0.8 kW?
22. 22.True or false: the ammeter is joined across a part. (a) False (b) True
23. 23.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
24. 24.True or false: the voltmeter is joined across a part. (a) False (b) True
25. 25.True or false: current is measured in ohms (Ω). (a) True (b) False
26. 26.📏 How many kilo-ohms (kΩ) is 100 Ω? =
27. 27.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
28. 28.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) the pipe colour (d) a narrow pipe
29. 29.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
30. 30.Which of these is measured in watts (W)? (a) energy used each second (b) how much a part resists (c) voltage (d) current
31. 31.📏 How many kilowatts (kW) is 4400 W? =
32. 32.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
33. 33.📏 How many ohms (Ω) is 2.7 kΩ?
34. 34.Which of these is measured in volts (V)? (a) voltage (b) how much a part resists (c) current (d) resistance
35. 35.True or false: how much a part resists is measured in watts (W). (a) False (b) True
36. 36.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
37. 37.Which of these is measured in ohms (Ω)? (a) energy used each second (b) voltage (c) the flow of charge (d) resistance
38. 38.True or false: power is measured in watts (W). (a) False (b) True
39. 39.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
40. 40.True or false: resistance is measured in ohms (Ω). (a) False (b) True

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