Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 738 · 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 is joined across a part. (a) False (b) True
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
4. 4.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
5. 5.True or false: the voltmeter is joined across a part. (a) False (b) True
6. 6.📏 How many milliamperes (mA) is 1.73 A?
7. 7.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
8. 8.True or false: resistance is measured in watts (W). (a) True (b) False
9. 9.True or false: current is measured in amperes (A). (a) True (b) False
10. 10.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
11. 11.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
12. 12.📏 How many ohms (Ω) is 9.7 kΩ?
13. 13.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) the push of a cell (d) energy used each second
14. 14.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) resistance (c) current (d) the flow of charge
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
16. 16.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
17. 17.📏 How many amperes (A) is 1950 mA? =
18. 18.Which of these is measured in watts (W)? (a) the flow of charge (b) power (c) current (d) voltage
19. 19.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
20. 20.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) resistance (d) the push of a cell
21. 21.📏 How many amperes (A) is 2870 mA? =
22. 22.True or false: the push of a cell is measured in watts (W). (a) True (b) False
23. 23.True or false: the voltmeter measures voltage. (a) True (b) False
24. 24.True or false: the ammeter measures voltage. (a) False (b) True
25. 25.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a bigger tank (d) a narrow pipe
26. 26.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
27. 27.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
28. 28.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
29. 29.📏 How many amperes (A) is 2560 mA? =
30. 30.True or false: voltage is measured in volts (V). (a) False (b) True
31. 31.True or false: the voltmeter is joined in series. (a) False (b) True
32. 32.📏 How many ohms (Ω) is 9.3 kΩ?
33. 33.Which of these is measured in volts (V)? (a) voltage (b) power (c) energy used each second (d) the flow of charge
34. 34.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
35. 35.True or false: current is measured in volts (V). (a) True (b) False
36. 36.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
37. 37.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) energy used each second (d) current
38. 38.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
39. 39.True or false: the ammeter is joined in series. (a) True (b) False
40. 40.True or false: the voltmeter measures current. (a) False (b) True

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