Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 897 · 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.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 How many milliamperes (mA) is 2.12 A?
4. 4.True or false: current is measured in amperes (A). (a) False (b) True
5. 5.True or false: energy used each second is measured in volts (V). (a) False (b) True
6. 6.True or false: resistance is measured in volts (V). (a) True (b) False
7. 7.📏 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
8. 8.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
9. 9.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
12. 12.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
13. 13.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) a narrow pipe (d) the flow of water
14. 14.True or false: the voltmeter is joined across a part. (a) False (b) True
15. 15.True or false: the push of a cell is measured in volts (V). (a) False (b) True
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
17. 17.Which of these is measured in watts (W)? (a) current (b) the push of a cell (c) energy used each second (d) how much a part resists
18. 18.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
19. 19.True or false: the ammeter measures current. (a) False (b) True
20. 20.True or false: the voltmeter is joined in series. (a) True (b) False
21. 21.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
22. 22.True or false: the voltmeter measures current. (a) False (b) True
23. 23.📏 How many kilowatts (kW) is 2200 W? =
24. 24.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 1024 (d) 100
25. 25.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) how much a part resists (d) power
26. 26.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
27. 27.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
28. 28.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
29. 29.True or false: voltage is measured in ohms (Ω). (a) False (b) True
30. 30.📏 How many amperes (A) is 2750 mA? =
31. 31.True or false: resistance is measured in amperes (A). (a) True (b) False
32. 32.True or false: the ammeter is joined across a part. (a) True (b) False
33. 33.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
34. 34.True or false: the ammeter measures voltage. (a) False (b) True
35. 35.📏 How many kilowatts (kW) is 2950 W? =
36. 36.📏 How many watts (W) is 0.2 kW?
37. 37.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) resistance (d) voltage
38. 38.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) the flow of charge (d) voltage
39. 39.Which of these is measured in amperes (A)? (a) resistance (b) current (c) power (d) voltage
40. 40.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)

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