Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 504 · 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, voltage is like … (a) the water pressure (b) the water tank lid (c) the pipe colour (d) the tap handle
2. 2.True or false: the ammeter measures voltage. (a) False (b) True
3. 3.📏 How many kilowatts (kW) is 400 W? =
4. 4.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
5. 5.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
6. 6.True or false: the push of a cell is measured in volts (V). (a) True (b) False
7. 7.📏 How many ohms (Ω) is 5.1 kΩ?
8. 8.True or false: the ammeter is joined in series. (a) False (b) True
9. 9.📏 How many kilo-ohms (kΩ) is 8400 Ω? =
10. 10.📏 How many kilowatts (kW) is 3000 W? =
11. 11.📏 How many kilowatts (kW) is 4100 W? =
12. 12.True or false: the ammeter is joined across a part. (a) True (b) False
13. 13.📏 How many kilowatts (kW) is 3700 W? =
14. 14.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
15. 15.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
16. 16.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
17. 17.Which of these is measured in amperes (A)? (a) how much a part resists (b) resistance (c) the push of a cell (d) current
18. 18.📏 How many kilo-ohms (kΩ) is 8900 Ω? =
19. 19.True or false: the voltmeter 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 8600 Ω? =
22. 22.📏 How many amperes (A) is 1680 mA? =
23. 23.📏 How many kilo-ohms (kΩ) is 1300 Ω? =
24. 24.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
25. 25.Which of these is measured in volts (V)? (a) resistance (b) the flow of charge (c) the push of a cell (d) how much a part resists
26. 26.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
27. 27.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 10 (d) 1024
28. 28.📏 How many amperes (A) is 2360 mA? =
29. 29.True or false: resistance is measured in volts (V). (a) True (b) False
30. 30.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
31. 31.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
32. 32.True or false: voltage is measured in amperes (A). (a) False (b) True
33. 33.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
34. 34.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
35. 35.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
36. 36.📏 How many milliamperes (mA) is 2.9 A?
37. 37.Which of these is measured in amperes (A)? (a) the flow of charge (b) energy used each second (c) how much a part resists (d) voltage
38. 38.📏 How many watts (W) is 3.7 kW?
39. 39.📏 How many ohms (Ω) is 4 kΩ?
40. 40.📏 How many kilo-ohms (kΩ) is 3200 Ω? =

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