Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 36 · 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.Which of these is measured in watts (W)? (a) voltage (b) energy used each second (c) the flow of charge (d) how much a part resists
2. 2.True or false: the ammeter is joined in series. (a) False (b) True
3. 3.True or false: the voltmeter is joined across a part. (a) False (b) True
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
5. 5.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 100 (d) 10
6. 6.True or false: the ammeter is joined across a part. (a) True (b) False
7. 7.📏 How many ohms (Ω) is 0.9 kΩ?
8. 8.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
9. 9.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
10. 10.True or false: current is measured in amperes (A). (a) True (b) False
11. 11.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
12. 12.True or false: how much a part resists is measured in volts (V). (a) False (b) True
13. 13.True or false: power is measured in amperes (A). (a) False (b) True
14. 14.📏 How many kilowatts (kW) is 3600 W? =
15. 15.True or false: the flow of charge is measured in volts (V). (a) True (b) False
16. 16.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
17. 17.📏 How many amperes (A) is 1170 mA? =
18. 18.Which of these is measured in amperes (A)? (a) the flow of charge (b) the push of a cell (c) resistance (d) energy used each second
19. 19.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
20. 20.📏 How many kilo-ohms (kΩ) is 8300 Ω? =
21. 21.Which of these is measured in watts (W)? (a) current (b) resistance (c) the flow of charge (d) power
22. 22.True or false: current is measured in watts (W). (a) True (b) False
23. 23.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
24. 24.📏 How many kilowatts (kW) is 4150 W? =
25. 25.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
26. 26.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) the flow of charge (c) current (d) resistance
27. 27.📏 How many watts (W) is 2.3 kW?
28. 28.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
29. 29.📏 How many watts (W) is 0.5 kW?
30. 30.📏 How many kilo-ohms (kΩ) is 3300 Ω? =
31. 31.Which of these is measured in ohms (Ω)? (a) power (b) how much a part resists (c) the push of a cell (d) current
32. 32.True or false: the ammeter measures current. (a) False (b) True
33. 33.True or false: the ammeter measures voltage. (a) False (b) True
34. 34.True or false: the voltmeter measures current. (a) True (b) False
35. 35.True or false: power is measured in ohms (Ω). (a) False (b) True
36. 36.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
37. 37.📏 How many ohms (Ω) is 5.6 kΩ?
38. 38.True or false: energy used each second is measured in watts (W). (a) False (b) True
39. 39.True or false: power is measured in watts (W). (a) False (b) True
40. 40.📏 How many ohms (Ω) is 3.5 kΩ?

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