Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 81 · 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.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the water pressure (d) the flow of water
2. 2.📏 How many kilowatts (kW) is 500 W? =
3. 3.True or false: resistance is measured in amperes (A). (a) True (b) False
4. 4.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
5. 5.Which of these is measured in volts (V)? (a) the push of a cell (b) energy used each second (c) current (d) the flow of charge
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
7. 7.📏 How many milliamperes (mA) is 1.01 A?
8. 8.Which of these is measured in ohms (Ω)? (a) current (b) the flow of charge (c) voltage (d) resistance
9. 9.📏 How many kilowatts (kW) is 1400 W? =
10. 10.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
11. 11.True or false: energy used each second is measured in watts (W). (a) False (b) True
12. 12.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
13. 13.True or false: the voltmeter measures voltage. (a) True (b) False
14. 14.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) power (d) voltage
15. 15.True or false: the ammeter measures current. (a) False (b) True
16. 16.📏 How many milliamperes (mA) is 2.5 A?
17. 17.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
18. 18.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) current (d) power
19. 19.📏 How many ohms (Ω) is 5.8 kΩ?
20. 20.Which of these is measured in watts (W)? (a) the push of a cell (b) resistance (c) power (d) voltage
21. 21.True or false: the ammeter is joined across a part. (a) False (b) True
22. 22.📏 How many ohms (Ω) is 1.5 kΩ?
23. 23.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
24. 24.📏 How many watts (W) is 2.7 kW?
25. 25.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
26. 26.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
27. 27.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
28. 28.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
29. 29.📏 How many ohms (Ω) is 2.7 kΩ?
30. 30.📏 How many kilowatts (kW) is 4500 W? =
31. 31.📏 How many kilowatts (kW) is 2850 W? =
32. 32.Which of these is measured in amperes (A)? (a) how much a part resists (b) resistance (c) the push of a cell (d) the flow of charge
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 10 (d) 1000
34. 34.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
35. 35.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) how much a part resists
36. 36.📏 How many kilo-ohms (kΩ) is 1800 Ω? =
37. 37.True or false: the push of a cell is measured in volts (V). (a) True (b) False
38. 38.📏 How many kilowatts (kW) is 3450 W? =
39. 39.True or false: the voltmeter is joined across a part. (a) True (b) False
40. 40.True or false: current is measured in amperes (A). (a) False (b) True

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