Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 540 · 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.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
2. 2.True or false: resistance is measured in watts (W). (a) True (b) False
3. 3.📏 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
4. 4.True or false: the ammeter is joined across a part. (a) False (b) True
5. 5.Which of these is measured in amperes (A)? (a) energy used each second (b) the flow of charge (c) power (d) how much a part resists
6. 6.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
7. 7.True or false: the push of a cell is measured in volts (V). (a) True (b) False
8. 8.True or false: how much a part resists is measured in volts (V). (a) True (b) False
9. 9.True or false: the ammeter measures current. (a) True (b) False
10. 10.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
11. 11.True or false: the voltmeter measures voltage. (a) True (b) False
12. 12.📏 How many kilowatts (kW) is 3300 W? =
13. 13.True or false: voltage is measured in ohms (Ω). (a) False (b) True
14. 14.📏 How many kilowatts (kW) is 450 W? =
15. 15.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
16. 16.📏 How many kilowatts (kW) is 3400 W? =
17. 17.Which of these is measured in amperes (A)? (a) how much a part resists (b) voltage (c) the push of a cell (d) current
18. 18.True or false: the voltmeter is joined in series. (a) True (b) False
19. 19.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the water pressure (d) the flow of water
20. 20.True or false: voltage is measured in volts (V). (a) False (b) True
21. 21.📏 How many kilowatts (kW) is 4550 W? =
22. 22.Which of these is measured in volts (V)? (a) how much a part resists (b) voltage (c) the flow of charge (d) power
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
24. 24.True or false: current is measured in volts (V). (a) False (b) True
25. 25.📏 How many ohms (Ω) is 1.2 kΩ?
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
27. 27.📏 How many kilowatts (kW) is 200 W? =
28. 28.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
29. 29.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
30. 30.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
31. 31.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
32. 32.True or false: the ammeter is joined in series. (a) True (b) False
33. 33.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
34. 34.📏 How many amperes (A) is 2010 mA? =
35. 35.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
36. 36.📏 How many ohms (Ω) is 8 kΩ?
37. 37.True or false: how much a part resists is measured in watts (W). (a) False (b) True
38. 38.📏 How many watts (W) is 0.3 kW?
39. 39.📏 How many kilowatts (kW) is 250 W? =
40. 40.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)

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