Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 927 · 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.📏 How many kilo-ohms (kΩ) is 6400 Ω? =
2. 2.True or false: the voltmeter is joined across a part. (a) False (b) True
3. 3.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
4. 4.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) power (d) voltage
5. 5.📏 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
6. 6.True or false: power is measured in ohms (Ω). (a) False (b) True
7. 7.True or false: the ammeter measures voltage. (a) True (b) False
8. 8.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) a narrow pipe (d) the water pressure
9. 9.📏 How many milliamperes (mA) is 2.79 A?
10. 10.Which of these is measured in volts (V)? (a) power (b) the push of a cell (c) energy used each second (d) the flow of charge
11. 11.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
12. 12.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
13. 13.📏 How many ohms (Ω) is 4.9 kΩ?
14. 14.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
15. 15.True or false: resistance is measured in amperes (A). (a) True (b) False
16. 16.True or false: energy used each second is measured in amperes (A). (a) True (b) False
17. 17.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1000 (d) 1024
18. 18.📏 How many kilowatts (kW) is 3850 W? =
19. 19.Which of these is measured in watts (W)? (a) power (b) voltage (c) the flow of charge (d) the push of a cell
20. 20.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
21. 21.📏 How many milliamperes (mA) is 1.39 A?
22. 22.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
23. 23.Which of these is measured in watts (W)? (a) resistance (b) the push of a cell (c) current (d) energy used each second
24. 24.True or false: power is measured in volts (V). (a) False (b) True
25. 25.Which of these is measured in amperes (A)? (a) voltage (b) resistance (c) power (d) the flow of charge
26. 26.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
27. 27.True or false: power is measured in watts (W). (a) True (b) False
28. 28.True or false: the voltmeter is joined in series. (a) False (b) True
29. 29.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) voltage (d) resistance
30. 30.📏 How many ohms (Ω) is 2.8 kΩ?
31. 31.True or false: the voltmeter measures voltage. (a) False (b) True
32. 32.📏 How many watts (W) is 0.5 kW?
33. 33.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
34. 34.📏 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
35. 35.True or false: the ammeter is joined across a part. (a) True (b) False
36. 36.📏 How many ohms (Ω) is 4.7 kΩ?
37. 37.True or false: the voltmeter measures current. (a) False (b) True
38. 38.📏 How many milliamperes (mA) is 0.08 A?
39. 39.True or false: voltage is measured in watts (W). (a) False (b) True
40. 40.📏 How many kilo-ohms (kΩ) is 3600 Ω? =

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