Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 920 · 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.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
2. 2.Which of these is measured in amperes (A)? (a) current (b) voltage (c) resistance (d) energy used each second
3. 3.Which of these is measured in amperes (A)? (a) the flow of charge (b) the push of a cell (c) voltage (d) resistance
4. 4.True or false: current is measured in amperes (A). (a) False (b) True
5. 5.📏 How many amperes (A) is 1970 mA? =
6. 6.True or false: how much a part resists is measured in watts (W). (a) True (b) False
7. 7.📏 How many watts (W) is 2.8 kW?
8. 8.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
9. 9.📏 How many kilo-ohms (kΩ) is 9600 Ω? =
10. 10.True or false: the voltmeter measures current. (a) False (b) True
11. 11.True or false: the voltmeter measures voltage. (a) True (b) False
12. 12.📏 How many kilowatts (kW) is 3050 W? =
13. 13.📏 How many kilo-ohms (kΩ) is 700 Ω? =
14. 14.True or false: the push of a cell is measured in watts (W). (a) True (b) False
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
16. 16.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
17. 17.Which of these is measured in ohms (Ω)? (a) energy used each second (b) the flow of charge (c) current (d) resistance
18. 18.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
19. 19.Which of these is measured in watts (W)? (a) resistance (b) power (c) how much a part resists (d) the push of a cell
20. 20.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
21. 21.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
22. 22.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
23. 23.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
24. 24.📏 How many kilowatts (kW) is 700 W? =
25. 25.📏 How many amperes (A) is 840 mA? =
26. 26.📏 How many kilowatts (kW) is 2100 W? =
27. 27.📏 How many ohms (Ω) is 6.2 kΩ?
28. 28.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
29. 29.📏 How many kilo-ohms (kΩ) is 9700 Ω? =
30. 30.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 1000 (d) 10
31. 31.Which of these is measured in volts (V)? (a) how much a part resists (b) voltage (c) resistance (d) energy used each second
32. 32.📏 How many kilowatts (kW) is 1500 W? =
33. 33.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
34. 34.True or false: the ammeter is joined across a part. (a) True (b) False
35. 35.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
36. 36.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure
37. 37.True or false: energy used each second is measured in watts (W). (a) False (b) True
38. 38.True or false: power is measured in watts (W). (a) True (b) False
39. 39.📏 How many amperes (A) is 1600 mA? =
40. 40.True or false: voltage is measured in volts (V). (a) True (b) False

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