Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 652 · 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 unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
2. 2.📏 How many ohms (Ω) is 1.4 kΩ?
3. 3.True or false: energy used each second is measured in amperes (A). (a) True (b) False
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
5. 5.Which of these is measured in watts (W)? (a) energy used each second (b) current (c) voltage (d) the push of a cell
6. 6.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
7. 7.📏 How many kilowatts (kW) is 3550 W? =
8. 8.True or false: the ammeter measures current. (a) True (b) False
9. 9.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) voltage (d) current
10. 10.True or false: the voltmeter is joined in series. (a) False (b) True
11. 11.True or false: the voltmeter measures current. (a) False (b) True
12. 12.True or false: voltage is measured in volts (V). (a) False (b) True
13. 13.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) the push of a cell (d) the flow of charge
14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
15. 15.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
16. 16.📏 How many kilo-ohms (kΩ) is 100 Ω? =
17. 17.📏 How many amperes (A) is 140 mA? =
18. 18.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) the water pressure (d) a narrow pipe
19. 19.📏 How many amperes (A) is 780 mA? =
20. 20.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
21. 21.True or false: the voltmeter is joined across a part. (a) False (b) True
22. 22.True or false: the ammeter measures voltage. (a) True (b) False
23. 23.📏 How many ohms (Ω) is 5.9 kΩ?
24. 24.📏 How many kilo-ohms (kΩ) is 4200 Ω? =
25. 25.True or false: the ammeter is joined in series. (a) True (b) False
26. 26.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
27. 27.Which of these is measured in amperes (A)? (a) current (b) how much a part resists (c) energy used each second (d) voltage
28. 28.Which of these is measured in volts (V)? (a) power (b) the push of a cell (c) energy used each second (d) resistance
29. 29.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) voltage (d) power
30. 30.True or false: energy used each second is measured in volts (V). (a) False (b) True
31. 31.True or false: the voltmeter measures voltage. (a) True (b) False
32. 32.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
33. 33.True or false: current is measured in amperes (A). (a) True (b) False
34. 34.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) voltage (d) power
35. 35.True or false: the ammeter is joined across a part. (a) False (b) True
36. 36.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
37. 37.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 1000 (d) 10
38. 38.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
39. 39.📏 How many milliamperes (mA) is 2.81 A?
40. 40.📏 How many watts (W) is 1.1 kW?

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