Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 434 · 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 ohms (Ω) is 9.8 kΩ?
2. 2.True or false: energy used each second is measured in watts (W). (a) False (b) True
3. 3.True or false: energy used each second is measured in volts (V). (a) True (b) False
4. 4.📏 How many ohms (Ω) is 3.1 kΩ?
5. 5.📏 How many amperes (A) is 1320 mA? =
6. 6.📏 How many kilowatts (kW) is 400 W? =
7. 7.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the pipe colour (d) the tap handle
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
9. 9.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
10. 10.📏 How many kilowatts (kW) is 3600 W? =
11. 11.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
12. 12.📏 How many kilo-ohms (kΩ) is 4200 Ω? =
13. 13.📏 How many watts (W) is 3.7 kW?
14. 14.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
15. 15.Which of these is measured in watts (W)? (a) how much a part resists (b) energy used each second (c) the push of a cell (d) resistance
16. 16.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) the flow of water (d) a narrow pipe
17. 17.True or false: the ammeter measures current. (a) True (b) False
18. 18.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 1000 (d) 60
20. 20.True or false: the voltmeter is joined in series. (a) False (b) True
21. 21.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
22. 22.📏 How many milliamperes (mA) is 2.18 A?
23. 23.True or false: the voltmeter measures voltage. (a) True (b) False
24. 24.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
25. 25.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) current (d) voltage
26. 26.📏 How many milliamperes (mA) is 2.1 A?
27. 27.Which of these is measured in amperes (A)? (a) voltage (b) the flow of charge (c) energy used each second (d) how much a part resists
28. 28.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
29. 29.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
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 4.7 kW?
32. 32.True or false: the ammeter is joined in series. (a) False (b) True
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1000 (d) 1024
34. 34.True or false: the push of a cell is measured in volts (V). (a) True (b) False
35. 35.📏 How many kilowatts (kW) is 2150 W? =
36. 36.📏 How many milliamperes (mA) is 0.35 A?
37. 37.📏 How many watts (W) is 0.9 kW?
38. 38.True or false: current is measured in amperes (A). (a) False (b) True
39. 39.True or false: resistance is measured in volts (V). (a) True (b) False
40. 40.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)

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