Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 200 · 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 unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
2. 2.True or false: voltage is measured in ohms (Ω). (a) False (b) True
3. 3.True or false: the ammeter is joined across a part. (a) True (b) False
4. 4.Which of these is measured in volts (V)? (a) voltage (b) power (c) how much a part resists (d) energy used each second
5. 5.📏 How many kilo-ohms (kΩ) is 4300 Ω? =
6. 6.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 100 (d) 60
7. 7.📏 How many kilowatts (kW) is 50 W? =
8. 8.True or false: the voltmeter measures current. (a) False (b) True
9. 9.True or false: the ammeter is joined in series. (a) False (b) True
10. 10.True or false: the flow of charge is measured in volts (V). (a) False (b) True
11. 11.True or false: voltage is measured in amperes (A). (a) False (b) True
12. 12.📏 How many kilowatts (kW) is 2850 W? =
13. 13.📏 How many kilo-ohms (kΩ) is 1300 Ω? =
14. 14.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) energy used each second (d) the flow of charge
15. 15.Which of these is measured in ohms (Ω)? (a) power (b) current (c) the flow of charge (d) how much a part resists
16. 16.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) the water pressure (d) a narrow pipe
17. 17.📏 How many ohms (Ω) is 5.9 kΩ?
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
19. 19.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
20. 20.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
21. 21.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
22. 22.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the pipe colour (d) the water tank lid
24. 24.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
25. 25.True or false: the ammeter measures current. (a) False (b) True
26. 26.Which of these is measured in amperes (A)? (a) power (b) resistance (c) current (d) energy used each second
27. 27.📏 How many amperes (A) is 590 mA? =
28. 28.📏 How many amperes (A) is 2140 mA? =
29. 29.Which of these is measured in ohms (Ω)? (a) resistance (b) power (c) the push of a cell (d) current
30. 30.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) current (d) power
31. 31.📏 How many milliamperes (mA) is 0.68 A?
32. 32.📏 How many amperes (A) is 240 mA? =
33. 33.True or false: the voltmeter is joined in series. (a) False (b) True
34. 34.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
35. 35.📏 How many milliamperes (mA) is 0.84 A?
36. 36.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
37. 37.📏 How many kilo-ohms (kΩ) is 2800 Ω? =
38. 38.True or false: power is measured in volts (V). (a) True (b) False
39. 39.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
40. 40.True or false: the voltmeter is joined across a part. (a) False (b) True

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