Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 737 · 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 is joined in series? (a) ammeter (b) voltmeter
2. 2.True or false: current is measured in ohms (Ω). (a) True (b) False
3. 3.Which of these is measured in watts (W)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) energy used each second
4. 4.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
6. 6.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
7. 7.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
8. 8.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
9. 9.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
10. 10.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the water tank lid (d) the tap handle
11. 11.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
12. 12.📏 How many kilo-ohms (kΩ) is 7600 Ω? =
13. 13.📏 How many kilowatts (kW) is 3050 W? =
14. 14.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
15. 15.📏 How many ohms (Ω) is 6.3 kΩ?
16. 16.📏 How many ohms (Ω) is 10 kΩ?
17. 17.📏 How many ohms (Ω) is 0.1 kΩ?
18. 18.Which of these is measured in watts (W)? (a) the flow of charge (b) power (c) current (d) voltage
19. 19.📏 How many amperes (A) is 10 mA? =
20. 20.True or false: the voltmeter measures current. (a) False (b) True
21. 21.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
22. 22.📏 Which unit measures power? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
23. 23.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) the flow of water (d) a narrow pipe
24. 24.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) how much a part resists (d) voltage
25. 25.True or false: resistance is measured in ohms (Ω). (a) True (b) False
26. 26.True or false: current is measured in amperes (A). (a) False (b) True
27. 27.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 100 (d) 1024
28. 28.📏 How many ohms (Ω) is 6.8 kΩ?
29. 29.📏 How many kilowatts (kW) is 4250 W? =
30. 30.True or false: the ammeter is joined in series. (a) False (b) True
31. 31.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
32. 32.📏 How many milliamperes (mA) is 1.26 A?
33. 33.📏 How many watts (W) is 4.7 kW?
34. 34.📏 How many ohms (Ω) is 2.9 kΩ?
35. 35.📏 How many amperes (A) is 710 mA? =
36. 36.True or false: the ammeter is joined across a part. (a) False (b) True
37. 37.Which of these is measured in ohms (Ω)? (a) energy used each second (b) the flow of charge (c) voltage (d) resistance
38. 38.📏 How many milliamperes (mA) is 1.45 A?
39. 39.📏 How many kilowatts (kW) is 400 W? =
40. 40.📏 How many kilowatts (kW) is 4900 W? =

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