Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 187 · 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) the flow of charge (b) resistance (c) how much a part resists (d) voltage
2. 2.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
3. 3.📏 How many watts (W) is 1 kW?
4. 4.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
5. 5.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
6. 6.True or false: the ammeter measures voltage. (a) False (b) True
7. 7.Which of these is measured in volts (V)? (a) power (b) current (c) the push of a cell (d) how much a part resists
8. 8.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) the flow of charge (c) energy used each second (d) how much a part resists
9. 9.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
10. 10.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the water tank lid (d) the tap handle
11. 11.True or false: the ammeter is joined across a part. (a) False (b) True
12. 12.True or false: the voltmeter is joined in series. (a) False (b) True
13. 13.📏 How many kilo-ohms (kΩ) is 2800 Ω? =
14. 14.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
15. 15.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) how much a part resists (d) current
16. 16.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
17. 17.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
19. 19.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
20. 20.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
21. 21.📏 How many ohms (Ω) is 3.6 kΩ?
22. 22.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
23. 23.True or false: the voltmeter is joined across a part. (a) True (b) False
24. 24.📏 How many kilowatts (kW) is 1400 W? =
25. 25.📏 How many kilo-ohms (kΩ) is 7900 Ω? =
26. 26.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
27. 27.📏 How many milliamperes (mA) is 0.83 A?
28. 28.Which of these is measured in ohms (Ω)? (a) resistance (b) the flow of charge (c) the push of a cell (d) power
29. 29.📏 How many ohms (Ω) is 0.3 kΩ?
30. 30.True or false: the ammeter measures current. (a) False (b) True
31. 31.True or false: voltage is measured in ohms (Ω). (a) False (b) True
32. 32.📏 How many milliamperes (mA) is 0.14 A?
33. 33.True or false: power is measured in amperes (A). (a) True (b) False
34. 34.True or false: resistance is measured in ohms (Ω). (a) False (b) True
35. 35.📏 How many amperes (A) is 200 mA? =
36. 36.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
37. 37.Which of these is measured in watts (W)? (a) power (b) the flow of charge (c) resistance (d) the push of a cell
38. 38.📏 How many amperes (A) is 2730 mA? =
39. 39.📏 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
40. 40.📏 How many watts (W) is 3.6 kW?

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