Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 655 · 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 of these is measured in volts (V)? (a) power (b) current (c) the flow of charge (d) voltage
2. 2.📏 How many kilowatts (kW) is 5000 W? =
3. 3.📏 How many watts (W) is 3.4 kW?
4. 4.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
5. 5.📏 How many amperes (A) is 2250 mA? =
6. 6.True or false: the voltmeter measures voltage. (a) False (b) True
7. 7.📏 How many amperes (A) is 2180 mA? =
8. 8.True or false: voltage is measured in volts (V). (a) False (b) True
9. 9.Which of these is measured in amperes (A)? (a) how much a part resists (b) resistance (c) the flow of charge (d) energy used each second
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.True or false: power is measured in ohms (Ω). (a) True (b) False
12. 12.True or false: the voltmeter is joined across a part. (a) False (b) True
13. 13.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) the push of a cell (d) resistance
14. 14.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
15. 15.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) a bigger tank (d) the flow of water
16. 16.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
18. 18.📏 How many amperes (A) is 1980 mA? =
19. 19.True or false: energy used each second is measured in watts (W). (a) True (b) False
20. 20.📏 How many ohms (Ω) is 2.9 kΩ?
21. 21.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
22. 22.📏 How many watts (W) is 4.7 kW?
23. 23.True or false: the push of a cell is measured in watts (W). (a) False (b) True
24. 24.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) a narrow pipe (d) the water pressure
25. 25.📏 How many watts (W) is 1.4 kW?
26. 26.True or false: power is measured in volts (V). (a) False (b) True
27. 27.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1024 (d) 1000
28. 28.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
29. 29.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
30. 30.True or false: current is measured in watts (W). (a) False (b) True
31. 31.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
32. 32.True or false: the ammeter measures voltage. (a) False (b) True
33. 33.Which of these is measured in amperes (A)? (a) voltage (b) current (c) power (d) the push of a cell
34. 34.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
35. 35.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
36. 36.True or false: the flow of charge is measured in watts (W). (a) False (b) True
37. 37.📏 How many ohms (Ω) is 7.7 kΩ?
38. 38.📏 How many ohms (Ω) is 0.5 kΩ?
39. 39.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
40. 40.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the pipe colour (d) the water tank lid

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