Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 980 · 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.True or false: energy used each second is measured in amperes (A). (a) True (b) False
2. 2.True or false: current is measured in volts (V). (a) True (b) False
3. 3.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 10 (d) 1000
4. 4.Which of these is measured in watts (W)? (a) how much a part resists (b) the flow of charge (c) the push of a cell (d) power
5. 5.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
6. 6.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) the push of a cell (d) power
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
8. 8.📏 How many milliamperes (mA) is 0.83 A?
9. 9.True or false: energy used each second is measured in watts (W). (a) True (b) False
10. 10.Which of these is measured in watts (W)? (a) resistance (b) voltage (c) the push of a cell (d) energy used each second
11. 11.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
12. 12.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 10 (d) 1000
13. 13.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
14. 14.True or false: the voltmeter measures voltage. (a) False (b) True
15. 15.True or false: the voltmeter is joined across a part. (a) True (b) False
16. 16.True or false: the ammeter is joined in series. (a) False (b) True
17. 17.📏 How many milliamperes (mA) is 2.96 A?
18. 18.True or false: the flow of charge is measured in watts (W). (a) True (b) False
19. 19.📏 How many amperes (A) is 2730 mA? =
20. 20.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) voltage (d) current
21. 21.📏 How many amperes (A) is 2130 mA? =
22. 22.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) the flow of water (d) a narrow pipe
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
24. 24.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
25. 25.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
26. 26.True or false: the ammeter measures voltage. (a) False (b) True
27. 27.📏 How many ohms (Ω) is 3.5 kΩ?
28. 28.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
29. 29.True or false: the voltmeter is joined in series. (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 of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) resistance (d) how much a part resists
32. 32.📏 How many ohms (Ω) is 5.1 kΩ?
33. 33.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
34. 34.📏 How many amperes (A) is 1050 mA? =
35. 35.True or false: voltage is measured in ohms (Ω). (a) False (b) True
36. 36.True or false: the ammeter measures current. (a) True (b) False
37. 37.True or false: current is measured in ohms (Ω). (a) True (b) False
38. 38.📏 How many kilowatts (kW) is 4050 W? =
39. 39.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
40. 40.Which of these is measured in ohms (Ω)? (a) resistance (b) current (c) the push of a cell (d) the flow of charge

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