Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 406 · 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 flow of charge is measured in ohms (Ω). (a) False (b) True
2. 2.True or false: the ammeter measures voltage. (a) False (b) True
3. 3.Which of these is measured in volts (V)? (a) resistance (b) power (c) the push of a cell (d) the flow of charge
4. 4.📏 How many kilowatts (kW) is 850 W? =
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
6. 6.Which of these is measured in ohms (Ω)? (a) energy used each second (b) power (c) how much a part resists (d) the push of a cell
7. 7.📏 How many amperes (A) is 1080 mA? =
8. 8.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) a bigger tank
9. 9.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) resistance (d) current
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
12. 12.True or false: the push of a cell is measured in volts (V). (a) False (b) True
13. 13.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
14. 14.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1024 (d) 1000
15. 15.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) the flow of charge (d) current
16. 16.True or false: voltage is measured in watts (W). (a) True (b) False
17. 17.📏 How many ohms (Ω) is 3.6 kΩ?
18. 18.📏 How many watts (W) is 4.2 kW?
19. 19.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
20. 20.Which of these is measured in amperes (A)? (a) resistance (b) the flow of charge (c) power (d) the push of a cell
21. 21.Which of these is measured in watts (W)? (a) voltage (b) power (c) the push of a cell (d) the flow of charge
22. 22.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
23. 23.True or false: power is measured in watts (W). (a) False (b) True
24. 24.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
25. 25.Which of these is measured in ohms (Ω)? (a) current (b) the flow of charge (c) voltage (d) resistance
26. 26.True or false: current is measured in amperes (A). (a) True (b) False
27. 27.📏 How many watts (W) is 0.6 kW?
28. 28.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
29. 29.📏 How many milliamperes (mA) is 1.7 A?
30. 30.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
31. 31.📏 How many ohms (Ω) is 2.9 kΩ?
32. 32.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
33. 33.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
34. 34.📏 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
35. 35.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
36. 36.📏 How many kilo-ohms (kΩ) is 8300 Ω? =
37. 37.True or false: the ammeter is joined across a part. (a) False (b) True
38. 38.True or false: the ammeter measures current. (a) True (b) False
39. 39.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the water pressure (d) the tap handle
40. 40.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)

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