Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 917 · 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: how much a part resists is measured in ohms (Ω). (a) False (b) True
2. 2.📏 How many milliamperes (mA) is 1.89 A?
3. 3.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) resistance (d) the push of a cell
4. 4.True or false: how much a part resists is measured in volts (V). (a) True (b) False
5. 5.📏 How many amperes (A) is 110 mA? =
6. 6.True or false: the ammeter is joined across a part. (a) False (b) True
7. 7.True or false: the flow of charge is measured in watts (W). (a) True (b) False
8. 8.📏 How many kilowatts (kW) is 2800 W? =
9. 9.📏 How many kilowatts (kW) is 1700 W? =
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.True or false: energy used each second is measured in volts (V). (a) True (b) False
12. 12.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
14. 14.True or false: the voltmeter is joined in series. (a) False (b) True
15. 15.Which of these is measured in volts (V)? (a) how much a part resists (b) the flow of charge (c) voltage (d) current
16. 16.📏 How many amperes (A) is 2200 mA? =
17. 17.Which of these is measured in watts (W)? (a) the flow of charge (b) energy used each second (c) voltage (d) the push of a cell
18. 18.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) the pipe colour (d) a narrow pipe
19. 19.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) a bigger tank (d) the water pressure
20. 20.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
21. 21.📏 How many kilo-ohms (kΩ) is 8500 Ω? =
22. 22.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
23. 23.True or false: the push of a cell is measured in volts (V). (a) False (b) True
24. 24.True or false: the voltmeter is joined across a part. (a) False (b) True
25. 25.📏 How many amperes (A) is 2250 mA? =
26. 26.True or false: power is measured in volts (V). (a) True (b) False
27. 27.📏 How many milliamperes (mA) is 2.78 A?
28. 28.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
29. 29.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) resistance (d) voltage
30. 30.📏 How many ohms (Ω) is 8.4 kΩ?
31. 31.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
32. 32.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
33. 33.📏 How many amperes (A) is 1230 mA? =
34. 34.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 60 (d) 10
35. 35.📏 How many kilowatts (kW) is 3200 W? =
36. 36.📏 How many kilo-ohms (kΩ) is 600 Ω? =
37. 37.📏 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
38. 38.True or false: power is measured in watts (W). (a) True (b) False
39. 39.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
40. 40.📏 How many ohms (Ω) is 8.1 kΩ?

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