Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 618 · 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: voltage is measured in volts (V). (a) False (b) True
2. 2.True or false: resistance is measured in amperes (A). (a) False (b) True
3. 3.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
4. 4.True or false: the voltmeter measures current. (a) True (b) False
5. 5.📏 How many milliamperes (mA) is 2.11 A?
6. 6.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
7. 7.📏 How many kilo-ohms (kΩ) is 6100 Ω? =
8. 8.True or false: the voltmeter is joined across a part. (a) True (b) False
9. 9.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
10. 10.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
11. 11.Which of these is measured in amperes (A)? (a) the flow of charge (b) the push of a cell (c) power (d) how much a part resists
12. 12.True or false: the flow of charge is measured in volts (V). (a) False (b) True
13. 13.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) how much a part resists (d) power
14. 14.True or false: the ammeter is joined in series. (a) True (b) False
15. 15.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
16. 16.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
17. 17.📏 How many amperes (A) is 1400 mA? =
18. 18.True or false: voltage is measured in amperes (A). (a) False (b) True
19. 19.📏 How many ohms (Ω) is 9.2 kΩ?
20. 20.True or false: current is measured in ohms (Ω). (a) False (b) True
21. 21.True or false: the push of a cell is measured in volts (V). (a) True (b) False
22. 22.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) power (d) current
23. 23.Which of these is measured in volts (V)? (a) power (b) current (c) the flow of charge (d) the push of a cell
24. 24.📏 How many amperes (A) is 1260 mA? =
25. 25.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
26. 26.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
27. 27.📏 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
28. 28.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
29. 29.📏 How many kilowatts (kW) is 2150 W? =
30. 30.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
31. 31.Which of these is measured in watts (W)? (a) the push of a cell (b) power (c) voltage (d) current
32. 32.📏 How many milliamperes (mA) is 0.72 A?
33. 33.True or false: voltage is measured in watts (W). (a) True (b) False
34. 34.📏 How many kilo-ohms (kΩ) is 3100 Ω? =
35. 35.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) energy used each second (d) voltage
36. 36.📏 How many watts (W) is 1.3 kW?
37. 37.True or false: current is measured in amperes (A). (a) True (b) False
38. 38.📏 How many kilowatts (kW) is 500 W? =
39. 39.📏 How many ohms (Ω) is 6.7 kΩ?
40. 40.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)

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