Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 960 · 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 is joined in series. (a) False (b) True
2. 2.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
3. 3.True or false: current is measured in ohms (Ω). (a) True (b) False
4. 4.True or false: the ammeter measures current. (a) True (b) False
5. 5.Which of these is measured in volts (V)? (a) resistance (b) voltage (c) energy used each second (d) the flow of charge
6. 6.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
7. 7.📏 How many ohms (Ω) is 9.3 kΩ?
8. 8.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) the flow of charge
9. 9.True or false: energy used each second is measured in watts (W). (a) True (b) False
10. 10.True or false: voltage is measured in volts (V). (a) True (b) False
11. 11.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
12. 12.True or false: current is measured in volts (V). (a) False (b) True
13. 13.True or false: power is measured in volts (V). (a) False (b) True
14. 14.📏 How many ohms (Ω) is 3.6 kΩ?
15. 15.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
16. 16.True or false: the flow of charge is measured in watts (W). (a) True (b) False
17. 17.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
18. 18.True or false: the ammeter measures voltage. (a) True (b) False
19. 19.📏 How many amperes (A) is 1440 mA? =
20. 20.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
21. 21.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) a bigger tank
22. 22.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
23. 23.Which of these is measured in amperes (A)? (a) the push of a cell (b) energy used each second (c) current (d) how much a part resists
24. 24.📏 How many kilowatts (kW) is 400 W? =
25. 25.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
26. 26.True or false: current is measured in amperes (A). (a) False (b) True
27. 27.Which of these is measured in volts (V)? (a) power (b) how much a part resists (c) current (d) the push of a cell
28. 28.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) power (d) the flow of charge
29. 29.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
30. 30.Which of these is measured in watts (W)? (a) power (b) resistance (c) how much a part resists (d) the push of a cell
31. 31.True or false: the voltmeter measures voltage. (a) True (b) False
32. 32.True or false: the voltmeter measures current. (a) True (b) False
33. 33.True or false: power is measured in amperes (A). (a) True (b) False
34. 34.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
35. 35.📏 How many amperes (A) is 790 mA? =
36. 36.📏 How many kilowatts (kW) is 4800 W? =
37. 37.📏 How many ohms (Ω) is 3 kΩ?
38. 38.📏 How many milliamperes (mA) is 0.09 A?
39. 39.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
40. 40.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure

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