Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 683 · 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 unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
2. 2.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) voltage (d) the flow of charge
3. 3.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
5. 5.True or false: the ammeter is joined across a part. (a) True (b) False
6. 6.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the tap handle (d) the water tank lid
7. 7.True or false: current is measured in watts (W). (a) False (b) True
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
9. 9.📏 How many kilowatts (kW) is 750 W? =
10. 10.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
11. 11.Which of these is measured in amperes (A)? (a) power (b) resistance (c) the push of a cell (d) current
12. 12.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
13. 13.True or false: the voltmeter measures current. (a) False (b) True
14. 14.📏 How many kilo-ohms (kΩ) is 8900 Ω? =
15. 15.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 100 (d) 10
16. 16.📏 How many kilowatts (kW) is 1700 W? =
17. 17.📏 How many kilowatts (kW) is 400 W? =
18. 18.📏 How many amperes (A) is 2100 mA? =
19. 19.True or false: how much a part resists is measured in watts (W). (a) True (b) False
20. 20.True or false: the voltmeter is joined in series. (a) True (b) False
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
22. 22.True or false: the ammeter measures current. (a) True (b) False
23. 23.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) the pipe colour
24. 24.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) power (d) current
25. 25.True or false: the push of a cell is measured in volts (V). (a) False (b) True
26. 26.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
27. 27.True or false: the voltmeter measures voltage. (a) False (b) True
28. 28.True or false: resistance is measured in watts (W). (a) True (b) False
29. 29.📏 How many kilowatts (kW) is 1600 W? =
30. 30.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
31. 31.Which of these is measured in volts (V)? (a) current (b) how much a part resists (c) resistance (d) the push of a cell
32. 32.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) energy used each second (d) current
33. 33.Which of these is measured in ohms (Ω)? (a) energy used each second (b) the push of a cell (c) current (d) resistance
34. 34.True or false: energy used each second is measured in watts (W). (a) False (b) True
35. 35.True or false: the ammeter measures voltage. (a) False (b) True
36. 36.True or false: how much a part resists is measured in volts (V). (a) True (b) False
37. 37.True or false: voltage is measured in ohms (Ω). (a) False (b) True
38. 38.True or false: power is measured in volts (V). (a) True (b) False
39. 39.📏 How many amperes (A) is 1570 mA? =
40. 40.Which of these is measured in amperes (A)? (a) voltage (b) how much a part resists (c) the flow of charge (d) the push of a cell

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