Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 114 · 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 is joined in series? (a) ammeter (b) voltmeter
2. 2.📏 How many kilowatts (kW) is 1000 W? =
3. 3.True or false: the ammeter measures current. (a) False (b) True
4. 4.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
5. 5.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) a bigger tank (d) the water pressure
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
7. 7.True or false: current is measured in volts (V). (a) True (b) False
8. 8.📏 How many amperes (A) is 500 mA? =
9. 9.Which of these is measured in volts (V)? (a) energy used each second (b) how much a part resists (c) power (d) voltage
10. 10.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 100 (d) 60
11. 11.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
12. 12.📏 How many amperes (A) is 2770 mA? =
13. 13.Which of these is measured in amperes (A)? (a) voltage (b) the flow of charge (c) resistance (d) energy used each second
14. 14.True or false: current is measured in amperes (A). (a) False (b) True
15. 15.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) voltage (d) the push of a cell
16. 16.Which of these is measured in volts (V)? (a) current (b) power (c) the push of a cell (d) resistance
17. 17.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
18. 18.True or false: the voltmeter measures voltage. (a) True (b) False
19. 19.True or false: the ammeter is joined in series. (a) False (b) True
20. 20.True or false: resistance is measured in watts (W). (a) True (b) False
21. 21.📏 How many ohms (Ω) is 7 kΩ?
22. 22.📏 How many watts (W) is 3.4 kW?
23. 23.True or false: the voltmeter is joined in series. (a) True (b) False
24. 24.📏 How many amperes (A) is 1210 mA? =
25. 25.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
26. 26.Which of these is measured in watts (W)? (a) resistance (b) current (c) how much a part resists (d) power
27. 27.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the water pressure (d) the tap handle
28. 28.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
29. 29.📏 How many milliamperes (mA) is 2.67 A?
30. 30.True or false: current is measured in watts (W). (a) False (b) True
31. 31.📏 How many kilo-ohms (kΩ) is 3600 Ω? =
32. 32.📏 How many ohms (Ω) is 5.5 kΩ?
33. 33.📏 How many amperes (A) is 960 mA? =
34. 34.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
35. 35.Which of these is measured in amperes (A)? (a) current (b) voltage (c) resistance (d) the push of a cell
36. 36.True or false: voltage is measured in ohms (Ω). (a) False (b) True
37. 37.True or false: the voltmeter is joined across a part. (a) False (b) True
38. 38.True or false: energy used each second is measured in watts (W). (a) True (b) False
39. 39.True or false: energy used each second is measured in amperes (A). (a) False (b) True
40. 40.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False

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