Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 486 · 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 voltage? (a) voltmeter (b) ammeter
2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1000 (d) 1024
3. 3.Which of these is measured in volts (V)? (a) current (b) voltage (c) the flow of charge (d) energy used each second
4. 4.📏 How many ohms (Ω) is 6.5 kΩ?
5. 5.True or false: current is measured in amperes (A). (a) True (b) False
6. 6.Which of these is measured in ohms (Ω)? (a) voltage (b) energy used each second (c) the flow of charge (d) how much a part resists
7. 7.True or false: the ammeter is joined in series. (a) False (b) True
8. 8.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
9. 9.True or false: the voltmeter measures voltage. (a) False (b) True
10. 10.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) a bigger tank (d) the water pressure
11. 11.📏 How many watts (W) is 3.3 kW?
12. 12.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
13. 13.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
14. 14.📏 How many ohms (Ω) is 5.4 kΩ?
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
16. 16.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) resistance (d) the push of a cell
17. 17.True or false: energy used each second is measured in watts (W). (a) True (b) False
18. 18.True or false: the voltmeter measures current. (a) False (b) True
19. 19.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) the push of a cell (d) resistance
20. 20.📏 How many milliamperes (mA) is 1.4 A?
21. 21.True or false: current is measured in volts (V). (a) False (b) True
22. 22.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the water pressure (d) the flow of water
23. 23.📏 How many milliamperes (mA) is 2.71 A?
24. 24.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
25. 25.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
26. 26.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
27. 27.📏 How many kilo-ohms (kΩ) is 5600 Ω? =
28. 28.True or false: the voltmeter is joined in series. (a) True (b) False
29. 29.📏 How many milliamperes (mA) is 2.41 A?
30. 30.📏 How many amperes (A) is 2750 mA? =
31. 31.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) energy used each second (d) the flow of charge
32. 32.📏 How many kilo-ohms (kΩ) is 4500 Ω? =
33. 33.📏 How many milliamperes (mA) is 0.43 A?
34. 34.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
35. 35.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
36. 36.📏 How many ohms (Ω) is 0.4 kΩ?
37. 37.True or false: resistance is measured in ohms (Ω). (a) False (b) True
38. 38.True or false: the voltmeter is joined across a part. (a) False (b) True
39. 39.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 100 (d) 60
40. 40.📏 How many watts (W) is 4.8 kW?

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