Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 733 · 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.True or false: the voltmeter measures voltage. (a) True (b) False
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
3. 3.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
5. 5.True or false: resistance is measured in ohms (Ω). (a) True (b) False
6. 6.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
7. 7.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
8. 8.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
9. 9.📏 How many ohms (Ω) is 7.5 kΩ?
10. 10.Which of these is measured in ohms (Ω)? (a) current (b) energy used each second (c) how much a part resists (d) the push of a cell
11. 11.📏 How many amperes (A) is 880 mA? =
12. 12.📏 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
13. 13.📏 How many milliamperes (mA) is 0.09 A?
14. 14.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 10 (d) 1000
15. 15.True or false: voltage is measured in ohms (Ω). (a) True (b) False
16. 16.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
17. 17.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) current (d) how much a part resists
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
19. 19.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
20. 20.True or false: the voltmeter is joined across a part. (a) True (b) False
21. 21.📏 How many milliamperes (mA) is 0.35 A?
22. 22.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) the push of a cell (d) the flow of charge
23. 23.True or false: the ammeter measures voltage. (a) True (b) False
24. 24.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
25. 25.📏 How many watts (W) is 1.8 kW?
26. 26.📏 How many kilowatts (kW) is 2250 W? =
27. 27.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
28. 28.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
29. 29.True or false: the flow of charge is measured in volts (V). (a) True (b) False
30. 30.📏 How many watts (W) is 3.9 kW?
31. 31.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
32. 32.Which of these is measured in watts (W)? (a) the flow of charge (b) energy used each second (c) voltage (d) how much a part resists
33. 33.True or false: power is measured in amperes (A). (a) True (b) False
34. 34.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
35. 35.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
36. 36.True or false: voltage is measured in volts (V). (a) True (b) False
37. 37.📏 How many amperes (A) is 1240 mA? =
38. 38.Which of these is measured in volts (V)? (a) how much a part resists (b) the flow of charge (c) the push of a cell (d) power
39. 39.📏 How many kilowatts (kW) is 1400 W? =
40. 40.True or false: power is measured in watts (W). (a) True (b) False

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