Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 513 · 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.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) how much a part resists (c) voltage (d) the flow of charge
2. 2.📏 How many kilo-ohms (kΩ) is 4600 Ω? =
3. 3.📏 How many ohms (Ω) is 3.2 kΩ?
4. 4.📏 How many ohms (Ω) is 5.9 kΩ?
5. 5.📏 How many ohms (Ω) is 5.4 kΩ?
6. 6.📏 How many kilowatts (kW) is 2050 W? =
7. 7.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
8. 8.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
9. 9.📏 How many watts (W) is 1 kW?
10. 10.📏 Which unit measures voltage? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
11. 11.📏 How many kilowatts (kW) is 500 W? =
12. 12.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) how much a part resists (d) voltage
13. 13.📏 How many amperes (A) is 2810 mA? =
14. 14.True or false: the ammeter measures voltage. (a) True (b) False
15. 15.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
16. 16.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
17. 17.📏 How many kilowatts (kW) is 3300 W? =
18. 18.True or false: the voltmeter measures voltage. (a) True (b) False
19. 19.📏 How many amperes (A) is 2520 mA? =
20. 20.True or false: current is measured in amperes (A). (a) False (b) True
21. 21.📏 How many kilowatts (kW) is 4650 W? =
22. 22.📏 How many ohms (Ω) is 0.2 kΩ?
23. 23.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) a narrow pipe (d) the water pressure
24. 24.True or false: the ammeter is joined in series. (a) True (b) False
25. 25.Which of these is measured in amperes (A)? (a) voltage (b) the push of a cell (c) energy used each second (d) the flow of charge
26. 26.📏 How many ohms (Ω) is 5 kΩ?
27. 27.📏 How many watts (W) is 1.7 kW?
28. 28.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
29. 29.📏 How many ohms (Ω) is 3.6 kΩ?
30. 30.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
31. 31.True or false: the ammeter is joined across a part. (a) False (b) True
32. 32.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
33. 33.Which of these is measured in volts (V)? (a) current (b) power (c) how much a part resists (d) voltage
34. 34.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
35. 35.📏 How many ohms (Ω) is 2.1 kΩ?
36. 36.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
37. 37.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
38. 38.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
39. 39.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) power (d) voltage
40. 40.True or false: power is measured in volts (V). (a) False (b) True

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