Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 401 · 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 kilowatts (kW) is 2750 W? =
2. 2.📏 How many kilowatts (kW) is 850 W? =
3. 3.True or false: the voltmeter measures voltage. (a) False (b) True
4. 4.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
5. 5.True or false: resistance is measured in volts (V). (a) True (b) False
6. 6.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
7. 7.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
8. 8.📏 How many kilo-ohms (kΩ) is 8500 Ω? =
9. 9.📏 How many kilowatts (kW) is 1950 W? =
10. 10.True or false: current is measured in volts (V). (a) True (b) False
11. 11.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
12. 12.📏 How many watts (W) is 3.8 kW?
13. 13.📏 How many amperes (A) is 2170 mA? =
14. 14.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) power (c) energy used each second (d) current
15. 15.📏 How many amperes (A) is 1410 mA? =
16. 16.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
17. 17.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
18. 18.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
19. 19.📏 How many watts (W) is 5 kW?
20. 20.Which of these is measured in volts (V)? (a) current (b) the flow of charge (c) how much a part resists (d) the push of a cell
21. 21.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
22. 22.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
23. 23.True or false: resistance is measured in ohms (Ω). (a) False (b) True
24. 24.True or false: the ammeter is joined in series. (a) False (b) True
25. 25.True or false: the ammeter is joined across a part. (a) False (b) True
26. 26.True or false: energy used each second is measured in volts (V). (a) False (b) True
27. 27.True or false: resistance is measured in watts (W). (a) True (b) False
28. 28.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
29. 29.📏 How many watts (W) is 2.5 kW?
30. 30.True or false: voltage is measured in volts (V). (a) False (b) True
31. 31.📏 How many kilo-ohms (kΩ) is 6800 Ω? =
32. 32.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
33. 33.Which of these is measured in ohms (Ω)? (a) voltage (b) current (c) energy used each second (d) resistance
34. 34.📏 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
35. 35.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
36. 36.📏 How many watts (W) is 4.9 kW?
37. 37.True or false: power is measured in volts (V). (a) False (b) True
38. 38.Which of these is measured in watts (W)? (a) current (b) energy used each second (c) voltage (d) how much a part resists
39. 39.📏 How many ohms (Ω) is 2.6 kΩ?
40. 40.📏 How many ohms (Ω) is 2.9 kΩ?

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