Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 548 · 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.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
2. 2.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
3. 3.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 10 (d) 1024
4. 4.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
5. 5.📏 How many kilowatts (kW) is 2600 W? =
6. 6.📏 How many ohms (Ω) is 7 kΩ?
7. 7.True or false: current is measured in volts (V). (a) True (b) False
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
9. 9.True or false: the ammeter is joined in series. (a) True (b) False
10. 10.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
11. 11.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) the push of a cell (d) voltage
12. 12.True or false: voltage is measured in volts (V). (a) True (b) False
13. 13.📏 How many kilo-ohms (kΩ) is 10000 Ω? =
14. 14.📏 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
15. 15.📏 How many amperes (A) is 60 mA? =
16. 16.True or false: the voltmeter measures voltage. (a) False (b) True
17. 17.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
18. 18.📏 How many amperes (A) is 1680 mA? =
19. 19.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
20. 20.Which of these is measured in watts (W)? (a) voltage (b) power (c) the push of a cell (d) the flow of charge
21. 21.📏 How many ohms (Ω) is 4.2 kΩ?
22. 22.Which of these is measured in ohms (Ω)? (a) power (b) energy used each second (c) resistance (d) the flow of charge
23. 23.Which of these is measured in amperes (A)? (a) power (b) the push of a cell (c) voltage (d) current
24. 24.True or false: the voltmeter is joined across a part. (a) False (b) True
25. 25.📏 How many watts (W) is 3.7 kW?
26. 26.Which of these is measured in amperes (A)? (a) voltage (b) the push of a cell (c) the flow of charge (d) resistance
27. 27.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
28. 28.True or false: the flow of charge is measured in volts (V). (a) False (b) True
29. 29.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
30. 30.True or false: how much a part resists is measured in volts (V). (a) False (b) True
31. 31.📏 How many watts (W) is 0.1 kW?
32. 32.📏 How many ohms (Ω) is 7.6 kΩ?
33. 33.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
34. 34.📏 How many amperes (A) is 2920 mA? =
35. 35.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
36. 36.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
37. 37.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) voltage (d) the flow of charge
38. 38.📏 Which unit measures the push of a cell? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
39. 39.True or false: the push of a cell is measured in watts (W). (a) False (b) True
40. 40.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)

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