Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 136 · 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) voltmeter (b) ammeter
2. 2.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
3. 3.Which of these is measured in volts (V)? (a) the push of a cell (b) power (c) the flow of charge (d) resistance
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
5. 5.True or false: current is measured in watts (W). (a) True (b) False
6. 6.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
7. 7.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
8. 8.📏 How many watts (W) is 1.8 kW?
9. 9.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) power (d) voltage
10. 10.True or false: the push of a cell is measured in watts (W). (a) False (b) True
11. 11.True or false: power is measured in watts (W). (a) True (b) False
12. 12.📏 How many milliamperes (mA) is 0.61 A?
13. 13.True or false: the push of a cell is measured in volts (V). (a) False (b) True
14. 14.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) the push of a cell (d) the flow of charge
15. 15.True or false: the voltmeter is joined in series. (a) False (b) True
16. 16.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) a bigger tank (d) the flow of water
17. 17.📏 How many amperes (A) is 1970 mA? =
18. 18.📏 How many ohms (Ω) is 8.5 kΩ?
19. 19.Which of these is measured in ohms (Ω)? (a) resistance (b) power (c) energy used each second (d) the flow of charge
20. 20.📏 How many ohms (Ω) is 9.2 kΩ?
21. 21.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
22. 22.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
23. 23.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
24. 24.📏 How many amperes (A) is 870 mA? =
25. 25.True or false: the ammeter measures current. (a) True (b) False
26. 26.📏 How many watts (W) is 1.9 kW?
27. 27.True or false: the ammeter measures voltage. (a) True (b) False
28. 28.True or false: power is measured in volts (V). (a) False (b) True
29. 29.True or false: current is measured in amperes (A). (a) False (b) True
30. 30.📏 How many watts (W) is 2.7 kW?
31. 31.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the water pressure (d) the flow of water
32. 32.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
33. 33.📏 How many watts (W) is 5 kW?
34. 34.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
35. 35.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
36. 36.📏 How many amperes (A) is 120 mA? =
37. 37.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
38. 38.📏 How many kilo-ohms (kΩ) is 9200 Ω? =
39. 39.Which of these is measured in volts (V)? (a) voltage (b) current (c) how much a part resists (d) the flow of charge
40. 40.📏 How many watts (W) is 0.4 kW?

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