Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 731 · 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 voltage. (a) True (b) False
2. 2.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) the water pressure (d) a narrow pipe
3. 3.True or false: the ammeter is joined in series. (a) False (b) True
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
6. 6.True or false: the ammeter measures current. (a) True (b) False
7. 7.📏 How many kilowatts (kW) is 3800 W? =
8. 8.📏 How many watts (W) is 2.4 kW?
9. 9.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 10 (d) 1024
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
11. 11.True or false: the ammeter measures voltage. (a) False (b) True
12. 12.Which of these is measured in amperes (A)? (a) resistance (b) power (c) the flow of charge (d) voltage
13. 13.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
14. 14.📏 How many amperes (A) is 2590 mA? =
15. 15.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) power (d) energy used each second
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
17. 17.📏 How many watts (W) is 4.4 kW?
18. 18.📏 How many milliamperes (mA) is 0.75 A?
19. 19.True or false: power is measured in volts (V). (a) False (b) True
20. 20.True or false: voltage is measured in watts (W). (a) False (b) True
21. 21.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) voltage (d) energy used each second
22. 22.True or false: the voltmeter is joined across a part. (a) False (b) True
23. 23.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) power (d) energy used each second
24. 24.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) power (c) resistance (d) energy used each second
25. 25.True or false: the flow of charge is measured in watts (W). (a) False (b) True
26. 26.True or false: the voltmeter is joined in series. (a) False (b) True
27. 27.📏 How many ohms (Ω) is 6.9 kΩ?
28. 28.📏 How many kilo-ohms (kΩ) is 9700 Ω? =
29. 29.📏 How many kilo-ohms (kΩ) is 5200 Ω? =
30. 30.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) the push of a cell (d) the flow of charge
31. 31.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
32. 32.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
33. 33.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
34. 34.True or false: current is measured in volts (V). (a) True (b) False
35. 35.📏 How many kilo-ohms (kΩ) is 8200 Ω? =
36. 36.📏 How many amperes (A) is 370 mA? =
37. 37.📏 How many kilo-ohms (kΩ) is 3400 Ω? =
38. 38.True or false: the push of a cell is measured in volts (V). (a) True (b) False
39. 39.True or false: resistance is measured in ohms (Ω). (a) True (b) False
40. 40.True or false: resistance is measured in volts (V). (a) False (b) True

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