Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 661 · 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.📏 How many ohms (Ω) is 4.4 kΩ?
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
3. 3.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
4. 4.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 100 (d) 1024
5. 5.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) the pipe colour
6. 6.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) power (c) how much a part resists (d) voltage
7. 7.Which of these is measured in watts (W)? (a) the flow of charge (b) power (c) resistance (d) the push of a cell
8. 8.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
9. 9.True or false: the ammeter measures voltage. (a) False (b) True
10. 10.Which of these is measured in ohms (Ω)? (a) resistance (b) the flow of charge (c) energy used each second (d) power
11. 11.📏 How many kilowatts (kW) is 2150 W? =
12. 12.📏 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
13. 13.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
15. 15.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
16. 16.Which of these is measured in watts (W)? (a) energy used each second (b) the flow of charge (c) the push of a cell (d) current
17. 17.📏 How many ohms (Ω) is 2.3 kΩ?
18. 18.📏 How many milliamperes (mA) is 0.24 A?
19. 19.📏 How many kilowatts (kW) is 4250 W? =
20. 20.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) how much a part resists (d) the push of a cell
21. 21.True or false: the ammeter measures current. (a) True (b) False
22. 22.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) a narrow pipe (d) the flow of water
23. 23.📏 How many watts (W) is 1.8 kW?
24. 24.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
25. 25.📏 How many watts (W) is 0.7 kW?
26. 26.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
27. 27.True or false: voltage is measured in ohms (Ω). (a) False (b) True
28. 28.True or false: power is measured in amperes (A). (a) True (b) False
29. 29.True or false: the ammeter is joined across a part. (a) False (b) True
30. 30.📏 How many watts (W) is 4.3 kW?
31. 31.Which of these is measured in amperes (A)? (a) power (b) current (c) the push of a cell (d) voltage
32. 32.True or false: resistance is measured in ohms (Ω). (a) True (b) False
33. 33.📏 How many milliamperes (mA) is 2.59 A?
34. 34.True or false: the voltmeter measures current. (a) False (b) True
35. 35.True or false: the flow of charge is measured in volts (V). (a) False (b) True
36. 36.True or false: the voltmeter measures voltage. (a) False (b) True
37. 37.True or false: energy used each second is measured in watts (W). (a) True (b) False
38. 38.📏 How many ohms (Ω) is 8.1 kΩ?
39. 39.True or false: the ammeter is joined in series. (a) True (b) False
40. 40.True or false: energy used each second is measured in volts (V). (a) False (b) True

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