Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 746 · 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.True or false: the ammeter measures voltage. (a) True (b) False
3. 3.True or false: the voltmeter measures voltage. (a) False (b) True
4. 4.True or false: the voltmeter is joined in series. (a) False (b) True
5. 5.📏 How many kilowatts (kW) is 3050 W? =
6. 6.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) the flow of charge (d) power
7. 7.📏 How many watts (W) is 0.6 kW?
8. 8.True or false: voltage is measured in volts (V). (a) False (b) True
9. 9.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the water tank lid (d) the pipe colour
10. 10.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
11. 11.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 60 (d) 10
12. 12.📏 How many amperes (A) is 1550 mA? =
13. 13.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) resistance (d) the push of a cell
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) the pipe colour
15. 15.True or false: current is measured in volts (V). (a) False (b) True
16. 16.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
17. 17.Which of these is measured in watts (W)? (a) power (b) resistance (c) how much a part resists (d) the flow of charge
18. 18.True or false: the ammeter measures current. (a) False (b) True
19. 19.📏 How many milliamperes (mA) is 2.13 A?
20. 20.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
21. 21.Which of these is measured in volts (V)? (a) current (b) resistance (c) energy used each second (d) voltage
22. 22.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
23. 23.📏 How many kilo-ohms (kΩ) is 7000 Ω? =
24. 24.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
25. 25.📏 How many milliamperes (mA) is 2.09 A?
26. 26.Which of these is measured in ohms (Ω)? (a) energy used each second (b) how much a part resists (c) current (d) the flow of charge
27. 27.📏 How many kilowatts (kW) is 4400 W? =
28. 28.📏 How many watts (W) is 1.6 kW?
29. 29.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
30. 30.📏 Which unit measures voltage? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
31. 31.📏 How many milliamperes (mA) is 1.57 A?
32. 32.📏 How many watts (W) is 0.1 kW?
33. 33.📏 How many ohms (Ω) is 9.1 kΩ?
34. 34.📏 How many watts (W) is 3.8 kW?
35. 35.True or false: the push of a cell is measured in volts (V). (a) False (b) True
36. 36.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
37. 37.True or false: energy used each second is measured in watts (W). (a) True (b) False
38. 38.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
39. 39.📏 How many kilo-ohms (kΩ) is 9100 Ω? =
40. 40.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)

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