Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 926 · 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) ammeter (b) voltmeter
2. 2.Which of these is measured in watts (W)? (a) resistance (b) the flow of charge (c) how much a part resists (d) energy used each second
3. 3.True or false: resistance is measured in amperes (A). (a) True (b) False
4. 4.True or false: current is measured in volts (V). (a) False (b) True
5. 5.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
6. 6.True or false: the ammeter is joined across a part. (a) False (b) True
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
8. 8.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 1000 (d) 10
9. 9.Which of these is measured in amperes (A)? (a) the flow of charge (b) energy used each second (c) how much a part resists (d) voltage
10. 10.📏 How many milliamperes (mA) is 0.6 A?
11. 11.True or false: the push of a cell is measured in volts (V). (a) False (b) True
12. 12.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
13. 13.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
14. 14.True or false: voltage is measured in volts (V). (a) False (b) True
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
16. 16.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
17. 17.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 60 (d) 100
18. 18.📏 How many amperes (A) is 2890 mA? =
19. 19.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) the water pressure (d) a narrow pipe
20. 20.📏 How many kilo-ohms (kΩ) is 6300 Ω? =
21. 21.True or false: the ammeter measures current. (a) True (b) False
22. 22.📏 How many ohms (Ω) is 3 kΩ?
23. 23.📏 How many kilowatts (kW) is 4150 W? =
24. 24.📏 How many milliamperes (mA) is 0.62 A?
25. 25.True or false: power is measured in volts (V). (a) True (b) False
26. 26.Which of these is measured in watts (W)? (a) voltage (b) power (c) the flow of charge (d) the push of a cell
27. 27.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
28. 28.True or false: resistance is measured in volts (V). (a) True (b) False
29. 29.Which of these is measured in ohms (Ω)? (a) power (b) current (c) how much a part resists (d) voltage
30. 30.📏 How many ohms (Ω) is 5 kΩ?
31. 31.📏 How many kilo-ohms (kΩ) is 4400 Ω? =
32. 32.True or false: the voltmeter is joined in series. (a) False (b) True
33. 33.Which of these is measured in volts (V)? (a) how much a part resists (b) voltage (c) current (d) the flow of charge
34. 34.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
35. 35.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
36. 36.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
37. 37.True or false: how much a part resists is measured in volts (V). (a) True (b) False
38. 38.True or false: the flow of charge is measured in watts (W). (a) True (b) False
39. 39.📏 How many ohms (Ω) is 9.7 kΩ?
40. 40.📏 How many watts (W) is 4.4 kW?

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