Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 75 · 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 measures voltage? (a) ammeter (b) voltmeter
2. 2.📏 How many amperes (A) is 1770 mA? =
3. 3.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
4. 4.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
5. 5.True or false: the push of a cell is measured in volts (V). (a) False (b) True
6. 6.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
7. 7.True or false: the ammeter is joined in series. (a) False (b) True
8. 8.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
9. 9.Which of these is measured in watts (W)? (a) resistance (b) the push of a cell (c) how much a part resists (d) energy used each second
10. 10.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
11. 11.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
12. 12.📏 How many milliamperes (mA) is 2.78 A?
13. 13.📏 How many kilowatts (kW) is 1000 W? =
14. 14.True or false: the voltmeter measures voltage. (a) True (b) False
15. 15.Which of these is measured in volts (V)? (a) how much a part resists (b) the flow of charge (c) energy used each second (d) voltage
16. 16.📏 How many kilowatts (kW) is 2650 W? =
17. 17.📏 How many ohms (Ω) is 6.8 kΩ?
18. 18.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) current (d) energy used each second
19. 19.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
20. 20.True or false: resistance is measured in watts (W). (a) True (b) False
21. 21.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
22. 22.True or false: the voltmeter is joined across a part. (a) False (b) True
23. 23.📏 How many amperes (A) is 2950 mA? =
24. 24.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
25. 25.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
26. 26.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
27. 27.True or false: the voltmeter measures current. (a) True (b) False
28. 28.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
29. 29.True or false: power is measured in watts (W). (a) False (b) True
30. 30.📏 How many kilowatts (kW) is 400 W? =
31. 31.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
32. 32.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) how much a part resists (d) the flow of charge
33. 33.Which of these is measured in watts (W)? (a) power (b) resistance (c) voltage (d) the flow of charge
34. 34.📏 How many ohms (Ω) is 2.5 kΩ?
35. 35.True or false: the push of a cell is measured in watts (W). (a) False (b) True
36. 36.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
37. 37.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
38. 38.Which of these is measured in ohms (Ω)? (a) current (b) energy used each second (c) the flow of charge (d) resistance
39. 39.📏 How many kilo-ohms (kΩ) is 5200 Ω? =
40. 40.True or false: the ammeter measures current. (a) True (b) False

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