Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 860 · 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.📏 Which unit measures resistance? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
2. 2.True or false: the push of a cell is measured in volts (V). (a) False (b) True
3. 3.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
5. 5.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) the flow of charge (c) voltage (d) resistance
6. 6.Which of these is measured in ohms (Ω)? (a) voltage (b) the push of a cell (c) how much a part resists (d) energy used each second
7. 7.Which of these is measured in volts (V)? (a) current (b) voltage (c) energy used each second (d) resistance
8. 8.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) a bigger tank (d) the water pressure
9. 9.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
10. 10.📏 How many milliamperes (mA) is 0.76 A?
11. 11.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
12. 12.📏 How many ohms (Ω) is 5.4 kΩ?
13. 13.Which of these is measured in amperes (A)? (a) how much a part resists (b) voltage (c) the flow of charge (d) energy used each second
14. 14.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
15. 15.📏 How many ohms (Ω) is 6.9 kΩ?
16. 16.True or false: voltage is measured in watts (W). (a) False (b) True
17. 17.📏 How many amperes (A) is 2560 mA? =
18. 18.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
19. 19.True or false: the voltmeter is joined in series. (a) True (b) False
20. 20.📏 How many kilowatts (kW) is 2050 W? =
21. 21.📏 How many kilo-ohms (kΩ) is 8700 Ω? =
22. 22.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) energy used each second (d) how much a part resists
23. 23.📏 How many amperes (A) is 1960 mA? =
24. 24.True or false: current is measured in amperes (A). (a) True (b) False
25. 25.True or false: the voltmeter measures voltage. (a) False (b) True
26. 26.True or false: the ammeter is joined in series. (a) False (b) True
27. 27.True or false: resistance is measured in ohms (Ω). (a) False (b) True
28. 28.True or false: the ammeter is joined across a part. (a) True (b) False
29. 29.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
30. 30.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
31. 31.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
32. 32.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
33. 33.📏 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
34. 34.Which of these is measured in amperes (A)? (a) current (b) energy used each second (c) voltage (d) power
35. 35.📏 How many watts (W) is 1.1 kW?
36. 36.True or false: voltage is measured in volts (V). (a) False (b) True
37. 37.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 10 (d) 1000
38. 38.📏 How many watts (W) is 4 kW?
39. 39.True or false: the ammeter measures current. (a) False (b) True
40. 40.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False

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