Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 244 · 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.📏 How many kilo-ohms (kΩ) is 8700 Ω? =
2. 2.True or false: the voltmeter measures current. (a) False (b) True
3. 3.True or false: voltage is measured in volts (V). (a) True (b) False
4. 4.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
5. 5.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
6. 6.📏 How many milliamperes (mA) is 0.04 A?
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
8. 8.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
9. 9.True or false: the ammeter is joined across a part. (a) True (b) False
10. 10.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
11. 11.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 1024 (d) 10
12. 12.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
13. 13.📏 How many watts (W) is 0.8 kW?
14. 14.True or false: voltage is measured in amperes (A). (a) True (b) False
15. 15.Which of these is measured in ohms (Ω)? (a) resistance (b) the push of a cell (c) the flow of charge (d) energy used each second
16. 16.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
17. 17.True or false: the voltmeter is joined in series. (a) False (b) True
18. 18.Which of these is measured in watts (W)? (a) how much a part resists (b) voltage (c) energy used each second (d) the push of a cell
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
20. 20.True or false: the ammeter is joined in series. (a) False (b) True
21. 21.📏 How many kilo-ohms (kΩ) is 4000 Ω? =
22. 22.True or false: resistance is measured in ohms (Ω). (a) True (b) False
23. 23.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) current (c) energy used each second (d) how much a part resists
24. 24.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
25. 25.📏 How many kilowatts (kW) is 3150 W? =
26. 26.True or false: current is measured in amperes (A). (a) False (b) True
27. 27.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
28. 28.True or false: power is measured in watts (W). (a) False (b) True
29. 29.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure
30. 30.Which of these is measured in volts (V)? (a) energy used each second (b) current (c) voltage (d) power
31. 31.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
32. 32.True or false: the flow of charge is measured in watts (W). (a) True (b) False
33. 33.True or false: energy used each second is measured in volts (V). (a) True (b) False
34. 34.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
35. 35.📏 How many amperes (A) is 1260 mA? =
36. 36.True or false: the push of a cell is measured in volts (V). (a) True (b) False
37. 37.📏 How many kilowatts (kW) is 2200 W? =
38. 38.📏 How many ohms (Ω) is 1.9 kΩ?
39. 39.Which of these is measured in amperes (A)? (a) how much a part resists (b) voltage (c) the push of a cell (d) current
40. 40.True or false: the flow of charge is measured in volts (V). (a) True (b) False

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