Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 31 · 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.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
2. 2.True or false: the flow of charge is measured in volts (V). (a) False (b) True
3. 3.True or false: voltage is measured in ohms (Ω). (a) False (b) True
4. 4.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
6. 6.True or false: the ammeter measures voltage. (a) True (b) False
7. 7.📏 How many kilo-ohms (kΩ) is 4000 Ω? =
8. 8.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
9. 9.Which of these is measured in watts (W)? (a) energy used each second (b) voltage (c) the push of a cell (d) current
10. 10.True or false: the voltmeter is joined across a part. (a) False (b) True
11. 11.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) the pipe colour
12. 12.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
13. 13.📏 How many ohms (Ω) is 2 kΩ?
14. 14.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) voltage (d) current
15. 15.📏 How many watts (W) is 0.8 kW?
16. 16.Which of these is measured in amperes (A)? (a) power (b) current (c) energy used each second (d) voltage
17. 17.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) how much a part resists (d) the flow of charge
18. 18.📏 How many ohms (Ω) is 8.6 kΩ?
19. 19.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) power (d) the flow of charge
20. 20.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
21. 21.Which of these is measured in amperes (A)? (a) power (b) the push of a cell (c) the flow of charge (d) voltage
22. 22.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
23. 23.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
24. 24.📏 How many kilowatts (kW) is 3850 W? =
25. 25.True or false: the voltmeter measures current. (a) True (b) False
26. 26.📏 How many ohms (Ω) is 2.4 kΩ?
27. 27.True or false: power is measured in watts (W). (a) False (b) True
28. 28.Which of these is measured in ohms (Ω)? (a) current (b) how much a part resists (c) voltage (d) the push of a cell
29. 29.True or false: the push of a cell is measured in volts (V). (a) False (b) True
30. 30.True or false: the ammeter measures current. (a) False (b) True
31. 31.📏 How many watts (W) is 2.9 kW?
32. 32.📏 How many watts (W) is 1.6 kW?
33. 33.True or false: voltage is measured in volts (V). (a) True (b) False
34. 34.True or false: energy used each second is measured in amperes (A). (a) False (b) True
35. 35.True or false: the ammeter is joined across a part. (a) False (b) True
36. 36.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
37. 37.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
38. 38.True or false: the ammeter is joined in series. (a) False (b) True
39. 39.True or false: the voltmeter is joined in series. (a) False (b) True
40. 40.📏 How many kilo-ohms (kΩ) is 8700 Ω? =

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