Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 870 · 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 ohms (Ω)? (a) power (b) the flow of charge (c) resistance (d) energy used each second
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
4. 4.True or false: energy used each second is measured in volts (V). (a) False (b) True
5. 5.Which of these is measured in amperes (A)? (a) resistance (b) power (c) current (d) the push of a cell
6. 6.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
7. 7.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) a narrow pipe (d) the flow of water
8. 8.Which of these is measured in volts (V)? (a) how much a part resists (b) resistance (c) the push of a cell (d) the flow of charge
9. 9.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
10. 10.📏 How many kilowatts (kW) is 150 W? =
11. 11.True or false: resistance is measured in watts (W). (a) False (b) True
12. 12.📏 How many kilowatts (kW) is 50 W? =
13. 13.Which of these is measured in watts (W)? (a) current (b) voltage (c) resistance (d) energy used each second
14. 14.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
15. 15.True or false: voltage is measured in ohms (Ω). (a) False (b) True
16. 16.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
18. 18.True or false: voltage is measured in volts (V). (a) True (b) False
19. 19.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water pressure (d) the water tank lid
20. 20.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
21. 21.True or false: the voltmeter is joined in series. (a) True (b) False
22. 22.Which of these is measured in watts (W)? (a) the push of a cell (b) how much a part resists (c) voltage (d) power
23. 23.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
24. 24.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
25. 25.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
26. 26.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
27. 27.True or false: the ammeter measures voltage. (a) False (b) True
28. 28.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
29. 29.📏 How many kilowatts (kW) is 100 W? =
30. 30.True or false: power is measured in amperes (A). (a) True (b) False
31. 31.Which of these is measured in volts (V)? (a) resistance (b) energy used each second (c) the flow of charge (d) voltage
32. 32.📏 How many ohms (Ω) is 1.7 kΩ?
33. 33.True or false: the voltmeter measures current. (a) False (b) True
34. 34.📏 How many watts (W) is 0.6 kW?
35. 35.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
36. 36.📏 How many amperes (A) is 600 mA? =
37. 37.📏 How many milliamperes (mA) is 1.49 A?
38. 38.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
39. 39.📏 How many milliamperes (mA) is 1.73 A?
40. 40.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) energy used each second (d) voltage

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