Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 705 · 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 measures voltage? (a) ammeter (b) voltmeter
2. 2.📏 How many ohms (Ω) is 6.4 kΩ?
3. 3.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
4. 4.True or false: energy used each second is measured in watts (W). (a) True (b) False
5. 5.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
6. 6.📏 How many milliamperes (mA) is 0.22 A?
7. 7.📏 How many ohms (Ω) is 7.3 kΩ?
8. 8.True or false: the ammeter is joined in series. (a) False (b) True
9. 9.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) resistance (d) current
10. 10.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) energy used each second (d) current
11. 11.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
12. 12.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
13. 13.📏 How many amperes (A) is 1750 mA? =
14. 14.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
15. 15.📏 How many kilowatts (kW) is 3650 W? =
16. 16.True or false: how much a part resists is measured in watts (W). (a) False (b) True
17. 17.📏 How many kilowatts (kW) is 2450 W? =
18. 18.True or false: energy used each second is measured in volts (V). (a) True (b) False
19. 19.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
20. 20.📏 How many amperes (A) is 570 mA? =
21. 21.📏 How many ohms (Ω) is 2.4 kΩ?
22. 22.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 10 (d) 100
23. 23.📏 How many kilowatts (kW) is 4100 W? =
24. 24.True or false: the push of a cell is measured in volts (V). (a) False (b) True
25. 25.Which of these is measured in amperes (A)? (a) resistance (b) power (c) voltage (d) the flow of charge
26. 26.True or false: power is measured in watts (W). (a) True (b) False
27. 27.True or false: the ammeter measures current. (a) False (b) True
28. 28.📏 How many kilowatts (kW) is 3500 W? =
29. 29.📏 How many amperes (A) is 880 mA? =
30. 30.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) the flow of water (d) a narrow pipe
31. 31.📏 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
32. 32.True or false: how much a part resists is measured in volts (V). (a) True (b) False
33. 33.📏 How many ohms (Ω) is 9.2 kΩ?
34. 34.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
35. 35.📏 How many kilowatts (kW) is 2100 W? =
36. 36.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
37. 37.📏 How many milliamperes (mA) is 0.57 A?
38. 38.True or false: the voltmeter is joined in series. (a) False (b) True
39. 39.True or false: voltage is measured in ohms (Ω). (a) True (b) False
40. 40.📏 How many ohms (Ω) is 5.2 kΩ?

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