Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 973 · 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 push of a cell is measured in amperes (A). (a) True (b) False
2. 2.📏 How many ohms (Ω) is 4 kΩ?
3. 3.True or false: voltage is measured in amperes (A). (a) False (b) True
4. 4.📏 How many ohms (Ω) is 3.8 kΩ?
5. 5.Which of these is measured in amperes (A)? (a) how much a part resists (b) current (c) resistance (d) the push of a cell
6. 6.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
7. 7.Which of these is measured in volts (V)? (a) current (b) voltage (c) power (d) energy used each second
8. 8.📏 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
9. 9.📏 How many kilowatts (kW) is 2900 W? =
10. 10.True or false: the voltmeter measures voltage. (a) True (b) False
11. 11.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
12. 12.📏 How many kilowatts (kW) is 900 W? =
13. 13.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
15. 15.Which of these is measured in watts (W)? (a) current (b) resistance (c) power (d) the flow of charge
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
17. 17.Which of these is measured in ohms (Ω)? (a) energy used each second (b) voltage (c) the push of a cell (d) resistance
18. 18.True or false: energy used each second is measured in watts (W). (a) False (b) True
19. 19.True or false: voltage is measured in volts (V). (a) False (b) True
20. 20.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
21. 21.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
22. 22.📏 How many amperes (A) is 610 mA? =
23. 23.True or false: the ammeter is joined in series. (a) False (b) True
24. 24.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
25. 25.Which of these is measured in volts (V)? (a) how much a part resists (b) resistance (c) the push of a cell (d) energy used each second
26. 26.True or false: the ammeter measures current. (a) False (b) True
27. 27.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
28. 28.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
29. 29.📏 How many amperes (A) is 730 mA? =
30. 30.Which of these is measured in watts (W)? (a) current (b) how much a part resists (c) energy used each second (d) resistance
31. 31.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
32. 32.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
33. 33.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
34. 34.True or false: current is measured in volts (V). (a) False (b) True
35. 35.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) how much a part resists (d) the push of a cell
36. 36.📏 How many ohms (Ω) is 8.6 kΩ?
37. 37.True or false: the ammeter measures voltage. (a) False (b) True
38. 38.True or false: the flow of charge is measured in volts (V). (a) False (b) True
39. 39.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
40. 40.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) energy used each second (c) current (d) the push of a cell

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