Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 412 · 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 current? (a) voltmeter (b) ammeter
2. 2.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
3. 3.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
4. 4.True or false: the push of a cell is measured in watts (W). (a) True (b) False
5. 5.True or false: the voltmeter measures voltage. (a) False (b) True
6. 6.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 60 (c) 10 (d) 100
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
8. 8.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
9. 9.Which of these is measured in watts (W)? (a) how much a part resists (b) energy used each second (c) resistance (d) voltage
10. 10.📏 How many ohms (Ω) is 4.2 kΩ?
11. 11.True or false: current is measured in volts (V). (a) True (b) False
12. 12.📏 How many kilowatts (kW) is 150 W? =
13. 13.True or false: power is measured in watts (W). (a) True (b) False
14. 14.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) current (d) power
15. 15.📏 How many kilo-ohms (kΩ) is 700 Ω? =
16. 16.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
17. 17.📏 How many milliamperes (mA) is 1.07 A?
18. 18.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
19. 19.📏 How many watts (W) is 3.7 kW?
20. 20.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) voltage (d) resistance
21. 21.📏 How many amperes (A) is 920 mA? =
22. 22.True or false: the voltmeter is joined across a part. (a) True (b) False
23. 23.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) power (d) voltage
24. 24.📏 How many milliamperes (mA) is 2.14 A?
25. 25.📏 How many ohms (Ω) is 4.4 kΩ?
26. 26.📏 How many amperes (A) is 1910 mA? =
27. 27.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
28. 28.True or false: the ammeter measures voltage. (a) True (b) False
29. 29.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) voltage (d) power
30. 30.📏 How many amperes (A) is 1720 mA? =
31. 31.📏 How many watts (W) is 0.3 kW?
32. 32.📏 How many ohms (Ω) is 2.3 kΩ?
33. 33.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
34. 34.📏 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
35. 35.Which of these is measured in amperes (A)? (a) the flow of charge (b) the push of a cell (c) resistance (d) how much a part resists
36. 36.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
37. 37.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
38. 38.Which of these is measured in ohms (Ω)? (a) current (b) the push of a cell (c) power (d) how much a part resists
39. 39.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the flow of water (d) the water pressure
40. 40.📏 How many kilowatts (kW) is 4150 W? =

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