Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 470 · 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 across a part? (a) ammeter (b) voltmeter
2. 2.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
3. 3.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 10 (d) 1000
4. 4.📏 How many kilo-ohms (kΩ) is 3000 Ω? =
5. 5.📏 How many milliamperes (mA) is 2.27 A?
6. 6.True or false: the ammeter is joined in series. (a) True (b) False
7. 7.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) voltage (d) energy used each second
8. 8.📏 How many kilowatts (kW) is 1550 W? =
9. 9.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
10. 10.📏 How many ohms (Ω) is 9.2 kΩ?
11. 11.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the pipe colour (d) the water tank lid
12. 12.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
13. 13.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
14. 14.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) energy used each second (d) resistance
15. 15.True or false: current is measured in volts (V). (a) False (b) True
16. 16.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
17. 17.True or false: resistance is measured in watts (W). (a) True (b) False
18. 18.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
19. 19.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) the pipe colour (d) a narrow pipe
20. 20.📏 How many amperes (A) is 1510 mA? =
21. 21.Which of these is measured in watts (W)? (a) energy used each second (b) the push of a cell (c) the flow of charge (d) how much a part resists
22. 22.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
23. 23.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
24. 24.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
25. 25.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
26. 26.📏 How many milliamperes (mA) is 0.59 A?
27. 27.True or false: the voltmeter measures current. (a) True (b) False
28. 28.📏 How many kilo-ohms (kΩ) is 400 Ω? =
29. 29.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
30. 30.True or false: the voltmeter is joined in series. (a) False (b) True
31. 31.True or false: the push of a cell is measured in watts (W). (a) True (b) False
32. 32.📏 How many kilowatts (kW) is 3150 W? =
33. 33.True or false: the flow of charge is measured in watts (W). (a) False (b) True
34. 34.True or false: the voltmeter is joined across a part. (a) True (b) False
35. 35.True or false: voltage is measured in volts (V). (a) True (b) False
36. 36.Which of these is measured in ohms (Ω)? (a) voltage (b) the push of a cell (c) power (d) how much a part resists
37. 37.True or false: the ammeter measures current. (a) True (b) False
38. 38.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
39. 39.📏 How many watts (W) is 2.3 kW?
40. 40.True or false: power is measured in amperes (A). (a) True (b) False

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