Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 869 · 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: power is measured in amperes (A). (a) True (b) False
2. 2.Which of these is measured in watts (W)? (a) current (b) resistance (c) voltage (d) energy used each second
3. 3.True or false: the push of a cell is measured in volts (V). (a) True (b) False
4. 4.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
5. 5.📏 How many watts (W) is 2 kW?
6. 6.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) power (c) resistance (d) energy used each second
7. 7.Which of these is measured in volts (V)? (a) resistance (b) the flow of charge (c) the push of a cell (d) current
8. 8.📏 How many kilowatts (kW) is 1800 W? =
9. 9.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
10. 10.📏 How many kilowatts (kW) is 2900 W? =
11. 11.📏 How many milliamperes (mA) is 0.23 A?
12. 12.True or false: energy used each second is measured in amperes (A). (a) True (b) False
13. 13.Which of these is measured in watts (W)? (a) current (b) how much a part resists (c) the flow of charge (d) power
14. 14.📏 How many watts (W) is 1.5 kW?
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the pipe colour (d) the water pressure
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
17. 17.Which of these is measured in amperes (A)? (a) power (b) resistance (c) current (d) the push of a cell
18. 18.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
19. 19.📏 How many kilowatts (kW) is 50 W? =
20. 20.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) power (c) voltage (d) the flow of charge
21. 21.True or false: the voltmeter is joined in series. (a) False (b) True
22. 22.📏 How many amperes (A) is 1590 mA? =
23. 23.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
24. 24.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
25. 25.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
26. 26.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
27. 27.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
28. 28.📏 How many milliamperes (mA) is 1.66 A?
29. 29.📏 How many ohms (Ω) is 6 kΩ?
30. 30.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
31. 31.True or false: the ammeter is joined in series. (a) True (b) False
32. 32.📏 How many kilowatts (kW) is 2950 W? =
33. 33.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) power (d) the flow of charge
34. 34.📏 How many amperes (A) is 2060 mA? =
35. 35.True or false: the voltmeter measures current. (a) False (b) True
36. 36.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
37. 37.📏 How many amperes (A) is 2590 mA? =
38. 38.True or false: how much a part resists is measured in watts (W). (a) True (b) False
39. 39.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 10 (d) 1000
40. 40.True or false: the ammeter is joined across a part. (a) False (b) True

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