Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 585 · 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 voltmeter is joined in series. (a) False (b) True
2. 2.Which of these is measured in watts (W)? (a) power (b) voltage (c) the flow of charge (d) resistance
3. 3.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
4. 4.True or false: voltage is measured in amperes (A). (a) True (b) False
5. 5.📏 How many kilo-ohms (kΩ) is 10000 Ω? =
6. 6.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
7. 7.📏 How many milliamperes (mA) is 2.97 A?
8. 8.Which of these is measured in volts (V)? (a) resistance (b) energy used each second (c) the push of a cell (d) current
9. 9.True or false: resistance is measured in watts (W). (a) True (b) False
10. 10.📏 How many amperes (A) is 2630 mA? =
11. 11.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
12. 12.📏 How many kilowatts (kW) is 1000 W? =
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
14. 14.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 10 (d) 100
15. 15.📏 How many ohms (Ω) is 1.3 kΩ?
16. 16.📏 How many amperes (A) is 1200 mA? =
17. 17.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
18. 18.True or false: the ammeter measures current. (a) True (b) False
19. 19.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the push of a cell (c) energy used each second (d) the flow of charge
20. 20.True or false: power is measured in watts (W). (a) True (b) False
21. 21.📏 How many amperes (A) is 770 mA? =
22. 22.📏 How many amperes (A) is 410 mA? =
23. 23.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) energy used each second (d) voltage
24. 24.📏 How many kilo-ohms (kΩ) is 5300 Ω? =
25. 25.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
26. 26.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
27. 27.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
28. 28.True or false: the ammeter is joined across a part. (a) False (b) True
29. 29.Which of these is measured in volts (V)? (a) resistance (b) voltage (c) current (d) the flow of charge
30. 30.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) the flow of charge (d) resistance
31. 31.📏 How many watts (W) is 3.8 kW?
32. 32.True or false: energy used each second is measured in watts (W). (a) True (b) False
33. 33.📏 How many amperes (A) is 720 mA? =
34. 34.📏 How many amperes (A) is 1180 mA? =
35. 35.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) the water pressure (d) a narrow pipe
36. 36.📏 How many amperes (A) is 1060 mA? =
37. 37.📏 How many kilowatts (kW) is 3500 W? =
38. 38.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
39. 39.True or false: voltage is measured in volts (V). (a) False (b) True
40. 40.📏 How many kilowatts (kW) is 3000 W? =

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