Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 500 · 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 amperes (A)? (a) power (b) the push of a cell (c) how much a part resists (d) the flow of charge
2. 2.True or false: the voltmeter measures current. (a) True (b) False
3. 3.📏 How many kilowatts (kW) is 4500 W? =
4. 4.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) a narrow pipe (d) the flow of water
5. 5.📏 How many milliamperes (mA) is 1.43 A?
6. 6.📏 How many kilo-ohms (kΩ) is 2600 Ω? =
7. 7.📏 How many kilo-ohms (kΩ) is 7900 Ω? =
8. 8.True or false: the voltmeter is joined in series. (a) False (b) True
9. 9.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
10. 10.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
11. 11.Which of these is measured in ohms (Ω)? (a) energy used each second (b) the push of a cell (c) the flow of charge (d) how much a part resists
12. 12.True or false: energy used each second is measured in volts (V). (a) True (b) False
13. 13.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
14. 14.True or false: the ammeter is joined in series. (a) False (b) True
15. 15.True or false: the voltmeter is joined across a part. (a) True (b) False
16. 16.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
17. 17.📏 How many amperes (A) is 540 mA? =
18. 18.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
19. 19.True or false: the ammeter measures current. (a) False (b) True
20. 20.True or false: the voltmeter measures voltage. (a) False (b) True
21. 21.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
22. 22.📏 How many kilowatts (kW) is 1300 W? =
23. 23.📏 How many kilowatts (kW) is 4200 W? =
24. 24.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
25. 25.📏 How many milliamperes (mA) is 2.43 A?
26. 26.📏 How many watts (W) is 2.2 kW?
27. 27.Which of these is measured in volts (V)? (a) energy used each second (b) voltage (c) how much a part resists (d) current
28. 28.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
29. 29.True or false: resistance is measured in volts (V). (a) True (b) False
30. 30.Which of these is measured in watts (W)? (a) how much a part resists (b) energy used each second (c) the push of a cell (d) voltage
31. 31.Which of these is measured in watts (W)? (a) current (b) resistance (c) power (d) the push of a cell
32. 32.📏 How many amperes (A) is 1550 mA? =
33. 33.True or false: voltage is measured in volts (V). (a) True (b) False
34. 34.📏 How many ohms (Ω) is 0.6 kΩ?
35. 35.📏 How many amperes (A) is 1590 mA? =
36. 36.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) the flow of charge (d) power
37. 37.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
38. 38.True or false: power is measured in watts (W). (a) True (b) False
39. 39.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
40. 40.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True

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