Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 439 · 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 current? (a) ammeter (b) voltmeter
2. 2.📏 How many amperes (A) is 2850 mA? =
3. 3.📏 How many kilowatts (kW) is 1300 W? =
4. 4.True or false: the ammeter is joined across a part. (a) False (b) True
5. 5.📏 How many milliamperes (mA) is 0.68 A?
6. 6.True or false: power is measured in watts (W). (a) True (b) False
7. 7.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) voltage (d) the push of a cell
8. 8.True or false: the voltmeter measures voltage. (a) True (b) False
9. 9.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
10. 10.📏 How many watts (W) is 0.8 kW?
11. 11.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
12. 12.True or false: the ammeter measures current. (a) False (b) True
13. 13.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
14. 14.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
15. 15.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
16. 16.Which of these is measured in ohms (Ω)? (a) current (b) resistance (c) energy used each second (d) the flow of charge
17. 17.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
18. 18.📏 How many watts (W) is 4.1 kW?
19. 19.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
20. 20.Which of these is measured in volts (V)? (a) how much a part resists (b) power (c) resistance (d) the push of a cell
21. 21.📏 How many ohms (Ω) is 0.6 kΩ?
22. 22.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
23. 23.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
24. 24.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) a narrow pipe (d) the water pressure
25. 25.True or false: power is measured in amperes (A). (a) True (b) False
26. 26.📏 How many milliamperes (mA) is 1.85 A?
27. 27.True or false: voltage is measured in volts (V). (a) True (b) False
28. 28.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
29. 29.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
30. 30.Which of these is measured in amperes (A)? (a) resistance (b) power (c) energy used each second (d) the flow of charge
31. 31.Which of these is measured in amperes (A)? (a) power (b) energy used each second (c) the push of a cell (d) current
32. 32.True or false: current is measured in amperes (A). (a) True (b) False
33. 33.📏 How many watts (W) is 0.3 kW?
34. 34.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
35. 35.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
36. 36.📏 How many ohms (Ω) is 1.3 kΩ?
37. 37.📏 How many watts (W) is 0.2 kW?
38. 38.True or false: the push of a cell is measured in volts (V). (a) False (b) True
39. 39.True or false: the ammeter is joined in series. (a) True (b) False
40. 40.📏 How many kilowatts (kW) is 3750 W? =

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