Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 171 · 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 is joined across a part? (a) voltmeter (b) ammeter
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.True or false: power is measured in ohms (Ω). (a) False (b) True
4. 4.True or false: the voltmeter is joined in series. (a) False (b) True
5. 5.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
6. 6.📏 How many kilowatts (kW) is 1100 W? =
7. 7.📏 How many ohms (Ω) is 4 kΩ?
8. 8.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
9. 9.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
10. 10.📏 How many kilowatts (kW) is 4100 W? =
11. 11.True or false: resistance is measured in ohms (Ω). (a) False (b) True
12. 12.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
13. 13.True or false: voltage is measured in volts (V). (a) False (b) True
14. 14.True or false: energy used each second is measured in watts (W). (a) False (b) True
15. 15.📏 How many ohms (Ω) is 9.5 kΩ?
16. 16.True or false: the ammeter is joined across a part. (a) False (b) True
17. 17.Which of these is measured in watts (W)? (a) energy used each second (b) resistance (c) current (d) the flow of charge
18. 18.📏 How many kilowatts (kW) is 4450 W? =
19. 19.True or false: the ammeter is joined in series. (a) False (b) True
20. 20.📏 How many kilo-ohms (kΩ) is 200 Ω? =
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
22. 22.📏 How many amperes (A) is 650 mA? =
23. 23.📏 How many milliamperes (mA) is 0.3 A?
24. 24.True or false: the ammeter measures current. (a) False (b) True
25. 25.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
26. 26.Which of these is measured in volts (V)? (a) voltage (b) the flow of charge (c) energy used each second (d) current
27. 27.📏 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
28. 28.Which of these is measured in watts (W)? (a) power (b) resistance (c) current (d) the push of a cell
29. 29.Which of these is measured in volts (V)? (a) resistance (b) the push of a cell (c) current (d) the flow of charge
30. 30.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
31. 31.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 1024 (d) 100
32. 32.Which of these is measured in amperes (A)? (a) voltage (b) current (c) the push of a cell (d) resistance
33. 33.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
34. 34.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
35. 35.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
36. 36.Which of these is measured in ohms (Ω)? (a) current (b) resistance (c) the flow of charge (d) power
37. 37.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) voltage
38. 38.📏 How many watts (W) is 1.9 kW?
39. 39.True or false: power is measured in amperes (A). (a) True (b) False
40. 40.📏 How many amperes (A) is 200 mA? =

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