Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 334 · 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.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) the flow of charge (d) the push of a cell
2. 2.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
3. 3.True or false: energy used each second is measured in watts (W). (a) False (b) True
4. 4.True or false: voltage is measured in watts (W). (a) False (b) True
5. 5.Which of these is measured in watts (W)? (a) the flow of charge (b) how much a part resists (c) voltage (d) power
6. 6.True or false: the push of a cell is measured in volts (V). (a) True (b) False
7. 7.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
8. 8.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
9. 9.Which of these is measured in amperes (A)? (a) energy used each second (b) the push of a cell (c) resistance (d) the flow of charge
10. 10.Which of these is measured in amperes (A)? (a) how much a part resists (b) current (c) resistance (d) the push of a cell
11. 11.True or false: the voltmeter measures voltage. (a) True (b) False
12. 12.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
14. 14.📏 How many kilowatts (kW) is 50 W? =
15. 15.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
16. 16.True or false: resistance is measured in ohms (Ω). (a) True (b) False
17. 17.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) energy used each second (d) power
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
19. 19.📏 How many amperes (A) is 1850 mA? =
20. 20.True or false: the ammeter measures voltage. (a) False (b) True
21. 21.Which of these is measured in volts (V)? (a) energy used each second (b) voltage (c) how much a part resists (d) the flow of charge
22. 22.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
23. 23.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
24. 24.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
25. 25.📏 How many kilowatts (kW) is 4550 W? =
26. 26.📏 How many kilo-ohms (kΩ) is 1800 Ω? =
27. 27.📏 How many kilowatts (kW) is 1150 W? =
28. 28.📏 How many amperes (A) is 1990 mA? =
29. 29.True or false: the push of a cell is measured in watts (W). (a) True (b) False
30. 30.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the flow of water (d) the water pressure
31. 31.True or false: the voltmeter measures current. (a) False (b) True
32. 32.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) the water pressure (d) a narrow pipe
33. 33.📏 How many kilo-ohms (kΩ) is 4700 Ω? =
34. 34.📏 How many ohms (Ω) is 0.4 kΩ?
35. 35.True or false: current is measured in amperes (A). (a) True (b) False
36. 36.True or false: the flow of charge is measured in volts (V). (a) True (b) False
37. 37.True or false: the ammeter is joined in series. (a) False (b) True
38. 38.True or false: energy used each second is measured in volts (V). (a) True (b) False
39. 39.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
40. 40.📏 How many watts (W) is 3.3 kW?

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