Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 607 · 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.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
3. 3.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
4. 4.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
5. 5.True or false: the ammeter is joined across a part. (a) False (b) True
6. 6.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
7. 7.📏 How many watts (W) is 2.9 kW?
8. 8.📏 How many kilowatts (kW) is 3200 W? =
9. 9.📏 How many milliamperes (mA) is 0.05 A?
10. 10.True or false: how much a part resists is measured in volts (V). (a) True (b) False
11. 11.True or false: the voltmeter measures current. (a) False (b) True
12. 12.📏 How many kilo-ohms (kΩ) is 200 Ω? =
13. 13.📏 How many ohms (Ω) is 0.4 kΩ?
14. 14.📏 How many kilowatts (kW) is 2250 W? =
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
16. 16.Which of these is measured in watts (W)? (a) the push of a cell (b) how much a part resists (c) energy used each second (d) voltage
17. 17.📏 How many ohms (Ω) is 8.1 kΩ?
18. 18.Which of these is measured in amperes (A)? (a) the push of a cell (b) resistance (c) current (d) power
19. 19.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
20. 20.📏 How many ohms (Ω) is 8.7 kΩ?
21. 21.📏 How many amperes (A) is 670 mA? =
22. 22.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) current (d) the flow of charge
23. 23.True or false: voltage is measured in volts (V). (a) False (b) True
24. 24.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
25. 25.Which of these is measured in amperes (A)? (a) the flow of charge (b) voltage (c) how much a part resists (d) resistance
26. 26.True or false: the flow of charge is measured in volts (V). (a) False (b) True
27. 27.📏 How many kilowatts (kW) is 200 W? =
28. 28.📏 How many kilo-ohms (kΩ) is 3500 Ω? =
29. 29.📏 How many ohms (Ω) is 6.6 kΩ?
30. 30.📏 How many amperes (A) is 1070 mA? =
31. 31.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
32. 32.📏 How many amperes (A) is 2730 mA? =
33. 33.Which of these is measured in volts (V)? (a) resistance (b) how much a part resists (c) power (d) voltage
34. 34.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
35. 35.📏 How many kilowatts (kW) is 1900 W? =
36. 36.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the water tank lid (d) the tap handle
37. 37.📏 How many amperes (A) is 2580 mA? =
38. 38.Which of these is measured in ohms (Ω)? (a) current (b) power (c) energy used each second (d) how much a part resists
39. 39.True or false: the voltmeter is joined in series. (a) False (b) True
40. 40.True or false: the ammeter measures current. (a) True (b) False

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