Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 898 · 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 ohms (Ω) is 0.3 kΩ?
2. 2.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
3. 3.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the water pressure (d) the tap handle
4. 4.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
6. 6.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
8. 8.True or false: voltage is measured in watts (W). (a) True (b) False
9. 9.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
10. 10.Which of these is measured in volts (V)? (a) resistance (b) current (c) the push of a cell (d) the flow of charge
11. 11.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
12. 12.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the pipe colour (d) the water pressure
13. 13.True or false: the ammeter is joined across a part. (a) True (b) False
14. 14.True or false: the voltmeter measures current. (a) True (b) False
15. 15.True or false: the voltmeter is joined in series. (a) True (b) False
16. 16.True or false: energy used each second is measured in watts (W). (a) False (b) True
17. 17.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
18. 18.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
19. 19.📏 How many kilowatts (kW) is 1600 W? =
20. 20.True or false: the voltmeter is joined across a part. (a) False (b) True
21. 21.📏 How many kilowatts (kW) is 4550 W? =
22. 22.True or false: voltage is measured in amperes (A). (a) True (b) False
23. 23.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) how much a part resists (c) voltage (d) current
24. 24.True or false: the push of a cell is measured in volts (V). (a) False (b) True
25. 25.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) how much a part resists (d) energy used each second
26. 26.True or false: the ammeter measures voltage. (a) True (b) False
27. 27.📏 How many kilowatts (kW) is 1650 W? =
28. 28.True or false: the voltmeter measures voltage. (a) True (b) False
29. 29.📏 How many kilo-ohms (kΩ) is 6800 Ω? =
30. 30.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
31. 31.True or false: power is measured in watts (W). (a) True (b) False
32. 32.📏 How many watts (W) is 2.6 kW?
33. 33.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
34. 34.📏 How many ohms (Ω) is 5.6 kΩ?
35. 35.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) voltage (d) how much a part resists
36. 36.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
37. 37.Which of these is measured in watts (W)? (a) the push of a cell (b) current (c) power (d) the flow of charge
38. 38.📏 How many kilowatts (kW) is 250 W? =
39. 39.📏 How many watts (W) is 0.4 kW?
40. 40.📏 How many kilowatts (kW) is 150 W? =

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids