Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 415 · 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.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
2. 2.📏 How many kilo-ohms (kΩ) is 2300 Ω? =
3. 3.📏 How many ohms (Ω) is 6.5 kΩ?
4. 4.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
5. 5.True or false: the ammeter measures current. (a) False (b) True
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
8. 8.True or false: the voltmeter measures voltage. (a) True (b) False
9. 9.📏 How many amperes (A) is 2870 mA? =
10. 10.True or false: the push of a cell is measured in volts (V). (a) False (b) True
11. 11.True or false: current is measured in amperes (A). (a) True (b) False
12. 12.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
13. 13.📏 How many amperes (A) is 2380 mA? =
14. 14.True or false: the ammeter measures voltage. (a) True (b) False
15. 15.True or false: the ammeter is joined across a part. (a) False (b) True
16. 16.📏 How many watts (W) is 3.1 kW?
17. 17.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
18. 18.True or false: voltage is measured in volts (V). (a) True (b) False
19. 19.Which of these is measured in watts (W)? (a) the flow of charge (b) resistance (c) energy used each second (d) the push of a cell
20. 20.📏 How many milliamperes (mA) is 1.65 A?
21. 21.📏 How many milliamperes (mA) is 0.43 A?
22. 22.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
23. 23.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
24. 24.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
25. 25.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
26. 26.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
27. 27.📏 How many watts (W) is 3.4 kW?
28. 28.📏 How many kilo-ohms (kΩ) is 3800 Ω? =
29. 29.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) the pipe colour
30. 30.📏 How many ohms (Ω) is 6.1 kΩ?
31. 31.📏 How many watts (W) is 5 kW?
32. 32.📏 How many ohms (Ω) is 9 kΩ?
33. 33.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the tap handle (d) the water tank lid
34. 34.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
35. 35.📏 How many ohms (Ω) is 4.8 kΩ?
36. 36.📏 How many kilowatts (kW) is 1100 W? =
37. 37.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) resistance (d) power
38. 38.True or false: energy used each second is measured in amperes (A). (a) True (b) False
39. 39.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) energy used each second (d) resistance
40. 40.True or false: the flow of charge is measured in volts (V). (a) True (b) False

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