Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 366 · 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.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
2. 2.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
3. 3.📏 How many kilo-ohms (kΩ) is 500 Ω? =
4. 4.📏 How many milliamperes (mA) is 1.27 A?
5. 5.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) voltage (d) resistance
6. 6.📏 How many kilowatts (kW) is 4300 W? =
7. 7.True or false: the ammeter is joined across a part. (a) False (b) True
8. 8.True or false: the voltmeter is joined in series. (a) False (b) True
9. 9.True or false: current is measured in volts (V). (a) True (b) False
10. 10.📏 How many milliamperes (mA) is 1.52 A?
11. 11.True or false: the ammeter measures current. (a) False (b) True
12. 12.📏 How many milliamperes (mA) is 1.37 A?
13. 13.True or false: voltage is measured in volts (V). (a) True (b) False
14. 14.True or false: the push of a cell is measured in volts (V). (a) True (b) False
15. 15.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
16. 16.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) the pipe colour
17. 17.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) power (d) resistance
18. 18.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
19. 19.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
20. 20.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
21. 21.📏 How many ohms (Ω) is 0.3 kΩ?
22. 22.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
23. 23.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) a bigger tank (d) the flow of water
24. 24.True or false: resistance is measured in ohms (Ω). (a) True (b) False
25. 25.📏 How many ohms (Ω) is 0.8 kΩ?
26. 26.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
27. 27.📏 How many watts (W) is 2.5 kW?
28. 28.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
29. 29.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
30. 30.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
31. 31.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
32. 32.📏 How many ohms (Ω) is 2.1 kΩ?
33. 33.True or false: the push of a cell is measured in watts (W). (a) False (b) True
34. 34.True or false: power is measured in watts (W). (a) True (b) False
35. 35.Which of these is measured in amperes (A)? (a) resistance (b) energy used each second (c) power (d) the flow of charge
36. 36.📏 How many ohms (Ω) is 1.5 kΩ?
37. 37.📏 How many milliamperes (mA) is 0.58 A?
38. 38.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
39. 39.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 60 (d) 10
40. 40.Which of these is measured in ohms (Ω)? (a) resistance (b) the push of a cell (c) energy used each second (d) current

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