Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 928 · 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 is joined across a part? (a) ammeter (b) voltmeter
2. 2.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
3. 3.📏 How many amperes (A) is 2180 mA? =
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
5. 5.Which of these is measured in volts (V)? (a) the push of a cell (b) current (c) power (d) energy used each second
6. 6.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) the water pressure (d) a narrow pipe
7. 7.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
8. 8.📏 How many amperes (A) is 2940 mA? =
9. 9.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the pipe colour (d) the tap handle
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
11. 11.True or false: the ammeter is joined across a part. (a) False (b) True
12. 12.📏 How many kilowatts (kW) is 4100 W? =
13. 13.True or false: energy used each second is measured in watts (W). (a) False (b) True
14. 14.📏 How many watts (W) is 4.2 kW?
15. 15.📏 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
16. 16.📏 How many watts (W) is 4.3 kW?
17. 17.📏 How many amperes (A) is 1090 mA? =
18. 18.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) power (d) resistance
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 1000 (d) 10
20. 20.True or false: power is measured in amperes (A). (a) True (b) False
21. 21.True or false: the voltmeter is joined in series. (a) False (b) True
22. 22.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
23. 23.True or false: resistance is measured in volts (V). (a) False (b) True
24. 24.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 10 (d) 100
25. 25.True or false: the ammeter measures current. (a) False (b) True
26. 26.📏 How many kilowatts (kW) is 4150 W? =
27. 27.Which of these is measured in watts (W)? (a) the push of a cell (b) current (c) power (d) voltage
28. 28.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
29. 29.True or false: the push of a cell is measured in volts (V). (a) True (b) False
30. 30.📏 How many amperes (A) is 2510 mA? =
31. 31.📏 How many kilowatts (kW) is 3250 W? =
32. 32.True or false: the ammeter measures voltage. (a) False (b) True
33. 33.📏 How many watts (W) is 1.8 kW?
34. 34.📏 How many amperes (A) is 1580 mA? =
35. 35.📏 How many amperes (A) is 710 mA? =
36. 36.True or false: power is measured in watts (W). (a) True (b) False
37. 37.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) power (d) the flow of charge
38. 38.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) energy used each second (d) power
39. 39.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
40. 40.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) resistance (d) current

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