Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 908 · 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.True or false: the ammeter measures voltage. (a) False (b) True
2. 2.True or false: voltage is measured in amperes (A). (a) False (b) True
3. 3.📏 How many kilowatts (kW) is 3150 W? =
4. 4.Which of these is measured in volts (V)? (a) resistance (b) power (c) the flow of charge (d) the push of a cell
5. 5.📏 How many kilo-ohms (kΩ) is 3300 Ω? =
6. 6.Which of these is measured in ohms (Ω)? (a) power (b) the flow of charge (c) resistance (d) the push of a cell
7. 7.True or false: the ammeter is joined in series. (a) False (b) True
8. 8.True or false: the ammeter is joined across a part. (a) False (b) True
9. 9.📏 How many amperes (A) is 2730 mA? =
10. 10.True or false: the voltmeter is joined across a part. (a) False (b) True
11. 11.📏 How many ohms (Ω) is 9 kΩ?
12. 12.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) voltage (d) energy used each second
13. 13.True or false: the ammeter measures current. (a) True (b) False
14. 14.True or false: the voltmeter measures current. (a) True (b) False
15. 15.📏 How many amperes (A) is 1620 mA? =
16. 16.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
17. 17.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) resistance (d) voltage
18. 18.📏 How many watts (W) is 1.4 kW?
19. 19.True or false: energy used each second is measured in watts (W). (a) True (b) False
20. 20.📏 How many milliamperes (mA) is 0.67 A?
21. 21.True or false: power is measured in amperes (A). (a) True (b) False
22. 22.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
23. 23.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
24. 24.True or false: voltage is measured in watts (W). (a) True (b) False
25. 25.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
26. 26.True or false: the voltmeter measures voltage. (a) True (b) False
27. 27.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
28. 28.📏 How many ohms (Ω) is 5.7 kΩ?
29. 29.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) the push of a cell (d) current
30. 30.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
31. 31.📏 How many ohms (Ω) is 0.3 kΩ?
32. 32.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
33. 33.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
34. 34.📏 How many kilo-ohms (kΩ) is 7600 Ω? =
35. 35.📏 How many ohms (Ω) is 9.6 kΩ?
36. 36.Which of these is measured in watts (W)? (a) voltage (b) the push of a cell (c) current (d) energy used each second
37. 37.True or false: current is measured in amperes (A). (a) False (b) True
38. 38.Which of these is measured in amperes (A)? (a) energy used each second (b) how much a part resists (c) the flow of charge (d) power
39. 39.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
40. 40.📏 How many amperes (A) is 2270 mA? =

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