Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 710 · 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: the voltmeter measures current. (a) False (b) True
2. 2.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
3. 3.📏 How many kilowatts (kW) is 3550 W? =
4. 4.True or false: the ammeter is joined in series. (a) True (b) False
5. 5.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
6. 6.📏 How many amperes (A) is 1700 mA? =
7. 7.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) power (d) how much a part resists
8. 8.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 1024 (d) 100
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
10. 10.Which of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) energy used each second (d) current
11. 11.📏 How many ohms (Ω) is 5.3 kΩ?
12. 12.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
13. 13.True or false: the push of a cell is measured in volts (V). (a) True (b) False
14. 14.📏 How many milliamperes (mA) is 2.76 A?
15. 15.True or false: power is measured in ohms (Ω). (a) True (b) False
16. 16.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
17. 17.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
18. 18.📏 How many milliamperes (mA) is 1.55 A?
19. 19.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
20. 20.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
21. 21.True or false: resistance is measured in volts (V). (a) False (b) True
22. 22.📏 How many kilowatts (kW) is 3750 W? =
23. 23.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) power (d) how much a part resists
24. 24.📏 How many kilowatts (kW) is 400 W? =
25. 25.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) a bigger tank (d) the water pressure
26. 26.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
27. 27.📏 How many ohms (Ω) is 3.3 kΩ?
28. 28.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
29. 29.📏 How many kilo-ohms (kΩ) is 4700 Ω? =
30. 30.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) power (d) resistance
31. 31.True or false: how much a part resists is measured in watts (W). (a) False (b) True
32. 32.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
33. 33.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
34. 34.True or false: the voltmeter is joined across a part. (a) True (b) False
35. 35.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
36. 36.📏 How many kilowatts (kW) is 4850 W? =
37. 37.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
38. 38.True or false: the voltmeter is joined in series. (a) True (b) False
39. 39.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
40. 40.Which of these is measured in amperes (A)? (a) voltage (b) current (c) resistance (d) the push of a cell

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