Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 61 · 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, current is like … (a) a narrow pipe (b) the pipe colour (c) the water pressure (d) the flow of water
2. 2.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
3. 3.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
4. 4.📏 How many kilo-ohms (kΩ) is 4100 Ω? =
5. 5.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
6. 6.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) power (d) resistance
7. 7.Which of these is measured in volts (V)? (a) energy used each second (b) voltage (c) how much a part resists (d) the flow of charge
8. 8.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
9. 9.📏 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
10. 10.📏 How many milliamperes (mA) is 1.08 A?
11. 11.True or false: the ammeter is joined in series. (a) False (b) True
12. 12.📏 How many kilowatts (kW) is 1100 W? =
13. 13.Which of these is measured in ohms (Ω)? (a) resistance (b) power (c) current (d) the push of a cell
14. 14.True or false: resistance is measured in ohms (Ω). (a) False (b) True
15. 15.True or false: the voltmeter is joined across a part. (a) False (b) True
16. 16.True or false: the push of a cell is measured in volts (V). (a) True (b) False
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
18. 18.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
19. 19.📏 How many amperes (A) is 1200 mA? =
20. 20.📏 How many amperes (A) is 1130 mA? =
21. 21.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
22. 22.📏 How many ohms (Ω) is 2 kΩ?
23. 23.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
24. 24.📏 How many amperes (A) is 2920 mA? =
25. 25.📏 How many milliamperes (mA) is 1.16 A?
26. 26.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
27. 27.Which of these is measured in ohms (Ω)? (a) power (b) voltage (c) how much a part resists (d) current
28. 28.📏 How many amperes (A) is 1370 mA? =
29. 29.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
30. 30.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
31. 31.📏 How many watts (W) is 3.7 kW?
32. 32.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
33. 33.True or false: power is measured in volts (V). (a) False (b) True
34. 34.Which of these is measured in watts (W)? (a) the flow of charge (b) current (c) voltage (d) energy used each second
35. 35.📏 How many amperes (A) is 1330 mA? =
36. 36.📏 How many milliamperes (mA) is 0.8 A?
37. 37.True or false: current is measured in volts (V). (a) False (b) True
38. 38.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 60 (c) 10 (d) 100
39. 39.True or false: voltage is measured in volts (V). (a) False (b) True
40. 40.True or false: the flow of charge is measured in watts (W). (a) False (b) True

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