Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 606 · 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 measures voltage? (a) ammeter (b) voltmeter
2. 2.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
3. 3.📏 How many amperes (A) is 2150 mA? =
4. 4.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
5. 5.Which of these is measured in volts (V)? (a) resistance (b) voltage (c) the flow of charge (d) power
6. 6.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
7. 7.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
8. 8.Which of these is measured in amperes (A)? (a) resistance (b) the flow of charge (c) voltage (d) power
9. 9.📏 How many amperes (A) is 2980 mA? =
10. 10.📏 How many ohms (Ω) is 6.1 kΩ?
11. 11.📏 How many kilowatts (kW) is 1350 W? =
12. 12.True or false: the voltmeter is joined in series. (a) True (b) False
13. 13.Which of these is measured in watts (W)? (a) current (b) voltage (c) power (d) the flow of charge
14. 14.📏 How many kilo-ohms (kΩ) is 3400 Ω? =
15. 15.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
16. 16.True or false: energy used each second is measured in watts (W). (a) True (b) False
17. 17.True or false: resistance is measured in ohms (Ω). (a) False (b) True
18. 18.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
19. 19.📏 How many kilowatts (kW) is 2000 W? =
20. 20.True or false: power is measured in amperes (A). (a) True (b) False
21. 21.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) power (c) voltage (d) resistance
22. 22.📏 How many ohms (Ω) is 0.4 kΩ?
23. 23.True or false: the voltmeter is joined across a part. (a) False (b) True
24. 24.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) energy used each second (d) resistance
25. 25.True or false: the push of a cell is measured in volts (V). (a) True (b) False
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the water pressure (d) the tap handle
27. 27.📏 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
28. 28.📏 How many kilowatts (kW) is 3850 W? =
29. 29.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
30. 30.📏 How many amperes (A) is 1070 mA? =
31. 31.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
32. 32.📏 How many ohms (Ω) is 4.4 kΩ?
33. 33.📏 How many ohms (Ω) is 9.7 kΩ?
34. 34.True or false: power is measured in watts (W). (a) True (b) False
35. 35.📏 How many ohms (Ω) is 7.4 kΩ?
36. 36.📏 How many milliamperes (mA) is 1.97 A?
37. 37.📏 How many amperes (A) is 520 mA? =
38. 38.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
39. 39.📏 How many milliamperes (mA) is 2.83 A?
40. 40.True or false: the ammeter is joined in series. (a) True (b) False

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