Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 282 · 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 voltmeter is joined across a part. (a) True (b) False
2. 2.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
3. 3.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the tap handle (d) the water tank lid
4. 4.True or false: voltage is measured in volts (V). (a) True (b) False
5. 5.📏 How many ohms (Ω) is 6.2 kΩ?
6. 6.True or false: the ammeter is joined across a part. (a) False (b) True
7. 7.📏 How many milliamperes (mA) is 2.71 A?
8. 8.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
9. 9.True or false: the voltmeter measures current. (a) True (b) False
10. 10.Which of these is measured in watts (W)? (a) resistance (b) current (c) power (d) how much a part resists
11. 11.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
12. 12.True or false: resistance is measured in amperes (A). (a) True (b) False
13. 13.True or false: the push of a cell is measured in volts (V). (a) True (b) False
14. 14.📏 How many kilo-ohms (kΩ) is 900 Ω? =
15. 15.True or false: the ammeter measures voltage. (a) True (b) False
16. 16.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
17. 17.Which of these is measured in amperes (A)? (a) voltage (b) how much a part resists (c) the flow of charge (d) the push of a cell
18. 18.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
19. 19.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
20. 20.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
21. 21.True or false: the ammeter is joined in series. (a) False (b) True
22. 22.True or false: the voltmeter is joined in series. (a) False (b) True
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 950 mA? =
25. 25.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
26. 26.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) energy used each second (d) how much a part resists
27. 27.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
28. 28.📏 Which unit measures current? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
29. 29.True or false: current is measured in amperes (A). (a) False (b) True
30. 30.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
31. 31.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
32. 32.📏 How many watts (W) is 4.3 kW?
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1000 (d) 1024
34. 34.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
35. 35.📏 How many kilo-ohms (kΩ) is 9900 Ω? =
36. 36.📏 How many ohms (Ω) is 2.3 kΩ?
37. 37.Which of these is measured in watts (W)? (a) the push of a cell (b) how much a part resists (c) energy used each second (d) current
38. 38.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) power (d) resistance
39. 39.📏 How many watts (W) is 2.7 kW?
40. 40.Which of these is measured in volts (V)? (a) the flow of charge (b) the push of a cell (c) power (d) current

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