Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 783 · 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.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 10 (d) 100
3. 3.📏 How many watts (W) is 2.2 kW?
4. 4.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
5. 5.📏 How many kilowatts (kW) is 2000 W? =
6. 6.True or false: power is measured in amperes (A). (a) False (b) True
7. 7.📏 How many ohms (Ω) is 1.3 kΩ?
8. 8.True or false: how much a part resists is measured in volts (V). (a) False (b) True
9. 9.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
10. 10.True or false: the ammeter measures current. (a) True (b) False
11. 11.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
12. 12.📏 How many ohms (Ω) is 2.6 kΩ?
13. 13.📏 How many kilo-ohms (kΩ) is 9600 Ω? =
14. 14.True or false: power is measured in watts (W). (a) True (b) False
15. 15.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) current (d) resistance
16. 16.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
17. 17.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
18. 18.📏 How many milliamperes (mA) is 0.04 A?
19. 19.📏 How many milliamperes (mA) is 0.27 A?
20. 20.📏 How many kilo-ohms (kΩ) is 3000 Ω? =
21. 21.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
22. 22.True or false: the voltmeter is joined across a part. (a) False (b) True
23. 23.📏 How many watts (W) is 1.7 kW?
24. 24.Which of these is measured in volts (V)? (a) power (b) current (c) energy used each second (d) voltage
25. 25.True or false: the voltmeter measures current. (a) False (b) True
26. 26.📏 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
27. 27.📏 How many watts (W) is 0.6 kW?
28. 28.📏 How many kilowatts (kW) is 2050 W? =
29. 29.True or false: resistance is measured in amperes (A). (a) True (b) False
30. 30.Which of these is measured in amperes (A)? (a) voltage (b) power (c) the flow of charge (d) energy used each second
31. 31.📏 How many kilowatts (kW) is 400 W? =
32. 32.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
33. 33.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) energy used each second (c) how much a part resists (d) voltage
34. 34.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
35. 35.📏 How many watts (W) is 0.9 kW?
36. 36.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
37. 37.📏 How many kilowatts (kW) is 1850 W? =
38. 38.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
39. 39.📏 How many watts (W) is 3.1 kW?
40. 40.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter

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