Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 526 · 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 volts (V)? (a) energy used each second (b) how much a part resists (c) the flow of charge (d) voltage
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
3. 3.True or false: the push of a cell is measured in volts (V). (a) False (b) True
4. 4.📏 How many watts (W) is 0.8 kW?
5. 5.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
6. 6.📏 How many milliamperes (mA) is 2.3 A?
7. 7.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
8. 8.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
9. 9.📏 How many kilowatts (kW) is 2150 W? =
10. 10.📏 How many amperes (A) is 2550 mA? =
11. 11.True or false: current is measured in volts (V). (a) False (b) True
12. 12.Which of these is measured in amperes (A)? (a) the flow of charge (b) power (c) how much a part resists (d) resistance
13. 13.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
14. 14.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
15. 15.📏 How many watts (W) is 4 kW?
16. 16.True or false: the voltmeter is joined across a part. (a) False (b) True
17. 17.📏 How many watts (W) is 1 kW?
18. 18.📏 How many kilowatts (kW) is 2850 W? =
19. 19.Which of these is measured in volts (V)? (a) the flow of charge (b) current (c) the push of a cell (d) resistance
20. 20.True or false: the voltmeter measures voltage. (a) False (b) True
21. 21.True or false: the push of a cell is measured in watts (W). (a) True (b) False
22. 22.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
23. 23.📏 How many kilowatts (kW) is 4950 W? =
24. 24.True or false: the flow of charge is measured in volts (V). (a) True (b) False
25. 25.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
26. 26.📏 How many kilo-ohms (kΩ) is 2600 Ω? =
27. 27.Which of these is measured in watts (W)? (a) current (b) power (c) the push of a cell (d) voltage
28. 28.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
29. 29.📏 How many amperes (A) is 2090 mA? =
30. 30.Which of these is measured in amperes (A)? (a) how much a part resists (b) resistance (c) current (d) the push of a cell
31. 31.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 100 (d) 60
32. 32.True or false: voltage is measured in ohms (Ω). (a) False (b) True
33. 33.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
34. 34.True or false: the voltmeter measures current. (a) False (b) True
35. 35.📏 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
36. 36.📏 How many kilowatts (kW) is 250 W? =
37. 37.📏 How many watts (W) is 0.1 kW?
38. 38.True or false: the ammeter is joined in series. (a) False (b) True
39. 39.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
40. 40.📏 How many amperes (A) is 2210 mA? =

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