Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 532 · 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 measures current? (a) voltmeter (b) ammeter
2. 2.True or false: the voltmeter is joined across a part. (a) False (b) True
3. 3.True or false: the voltmeter is joined in series. (a) True (b) False
4. 4.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
5. 5.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the water tank lid (d) the tap handle
6. 6.Which of these is measured in watts (W)? (a) current (b) resistance (c) energy used each second (d) the flow of charge
7. 7.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 10 (d) 1000
8. 8.📏 How many kilowatts (kW) is 3500 W? =
9. 9.📏 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
10. 10.📏 How many watts (W) is 3.2 kW?
11. 11.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
12. 12.True or false: the ammeter is joined in series. (a) False (b) True
13. 13.📏 How many kilowatts (kW) is 200 W? =
14. 14.📏 How many watts (W) is 4.4 kW?
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
16. 16.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
17. 17.📏 How many milliamperes (mA) is 1.17 A?
18. 18.True or false: resistance is measured in ohms (Ω). (a) False (b) True
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 60 (d) 100
20. 20.📏 How many kilo-ohms (kΩ) is 5500 Ω? =
21. 21.📏 How many milliamperes (mA) is 2.02 A?
22. 22.Which of these is measured in volts (V)? (a) energy used each second (b) the push of a cell (c) resistance (d) how much a part resists
23. 23.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
24. 24.📏 How many kilo-ohms (kΩ) is 2600 Ω? =
25. 25.True or false: resistance is measured in watts (W). (a) True (b) False
26. 26.📏 How many amperes (A) is 1280 mA? =
27. 27.📏 How many amperes (A) is 1400 mA? =
28. 28.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) power (c) the push of a cell (d) how much a part resists
29. 29.📏 How many watts (W) is 1 kW?
30. 30.📏 How many amperes (A) is 980 mA? =
31. 31.Which of these is measured in ohms (Ω)? (a) voltage (b) the push of a cell (c) resistance (d) power
32. 32.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
33. 33.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
34. 34.Which of these is measured in watts (W)? (a) power (b) current (c) voltage (d) the push of a cell
35. 35.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
36. 36.📏 How many ohms (Ω) is 2.5 kΩ?
37. 37.Which of these is measured in amperes (A)? (a) voltage (b) resistance (c) how much a part resists (d) the flow of charge
38. 38.📏 How many watts (W) is 2.4 kW?
39. 39.📏 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
40. 40.True or false: the flow of charge is measured in amperes (A). (a) False (b) True

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