Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 346 · 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) how much a part resists (b) power (c) the push of a cell (d) current
2. 2.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) power (d) the flow of charge
3. 3.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
4. 4.True or false: the ammeter is joined across a part. (a) True (b) False
5. 5.True or false: the ammeter measures voltage. (a) True (b) False
6. 6.True or false: the push of a cell is measured in volts (V). (a) True (b) False
7. 7.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
8. 8.📏 How many ohms (Ω) is 2.4 kΩ?
9. 9.True or false: the ammeter is joined in series. (a) False (b) True
10. 10.📏 How many amperes (A) is 190 mA? =
11. 11.📏 How many kilo-ohms (kΩ) is 2800 Ω? =
12. 12.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) the flow of water (d) a narrow pipe
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
14. 14.True or false: resistance is measured in ohms (Ω). (a) False (b) True
15. 15.📏 How many milliamperes (mA) is 0.8 A?
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
17. 17.True or false: energy used each second is measured in volts (V). (a) True (b) False
18. 18.📏 How many ohms (Ω) is 9.2 kΩ?
19. 19.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
20. 20.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
21. 21.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 100 (d) 60
22. 22.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) the pipe colour (d) a narrow pipe
23. 23.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) the flow of charge (d) energy used each second
24. 24.📏 How many watts (W) is 4.3 kW?
25. 25.📏 How many amperes (A) is 1730 mA? =
26. 26.📏 How many amperes (A) is 600 mA? =
27. 27.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
28. 28.True or false: the voltmeter is joined across a part. (a) False (b) True
29. 29.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
30. 30.Which of these is measured in volts (V)? (a) current (b) voltage (c) power (d) the flow of charge
31. 31.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) energy used each second (d) how much a part resists
32. 32.📏 How many kilowatts (kW) is 1750 W? =
33. 33.True or false: voltage is measured in volts (V). (a) True (b) False
34. 34.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
35. 35.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
36. 36.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) current (d) the push of a cell
37. 37.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
38. 38.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
39. 39.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
40. 40.True or false: resistance is measured in watts (W). (a) True (b) False

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