Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 596 · 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 ammeter measures current. (a) False (b) True
2. 2.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
3. 3.True or false: the voltmeter is joined across a part. (a) True (b) False
4. 4.📏 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
5. 5.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
6. 6.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
7. 7.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
8. 8.📏 How many milliamperes (mA) is 1.43 A?
9. 9.📏 How many amperes (A) is 2150 mA? =
10. 10.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
11. 11.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
12. 12.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
13. 13.📏 How many ohms (Ω) is 8.4 kΩ?
14. 14.True or false: the push of a cell is measured in volts (V). (a) False (b) True
15. 15.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 1000 (d) 10
16. 16.True or false: energy used each second is measured in amperes (A). (a) True (b) False
17. 17.📏 How many amperes (A) is 1880 mA? =
18. 18.Which of these is measured in watts (W)? (a) voltage (b) the push of a cell (c) current (d) energy used each second
19. 19.True or false: how much a part resists is measured in watts (W). (a) False (b) True
20. 20.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
21. 21.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
22. 22.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
23. 23.📏 How many kilowatts (kW) is 4150 W? =
24. 24.Which of these is measured in amperes (A)? (a) the flow of charge (b) power (c) energy used each second (d) resistance
25. 25.📏 How many kilowatts (kW) is 4600 W? =
26. 26.📏 How many kilowatts (kW) is 600 W? =
27. 27.📏 How many amperes (A) is 1550 mA? =
28. 28.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) resistance (d) energy used each second
29. 29.📏 How many kilowatts (kW) is 1200 W? =
30. 30.True or false: voltage is measured in amperes (A). (a) False (b) True
31. 31.True or false: the flow of charge is measured in volts (V). (a) True (b) False
32. 32.True or false: the ammeter measures voltage. (a) False (b) True
33. 33.📏 How many milliamperes (mA) is 1.15 A?
34. 34.True or false: the voltmeter measures current. (a) False (b) True
35. 35.Which of these is measured in volts (V)? (a) voltage (b) how much a part resists (c) resistance (d) the flow of charge
36. 36.📏 How many ohms (Ω) is 6.6 kΩ?
37. 37.📏 How many amperes (A) is 2130 mA? =
38. 38.True or false: the ammeter is joined in series. (a) True (b) False
39. 39.True or false: voltage is measured in ohms (Ω). (a) False (b) True
40. 40.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)

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