Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 719 · 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 push of a cell is measured in watts (W). (a) True (b) False
2. 2.📏 How many milliamperes (mA) is 0.15 A?
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
5. 5.Which of these is measured in volts (V)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) energy used each second
6. 6.Which of these is measured in watts (W)? (a) current (b) energy used each second (c) voltage (d) resistance
7. 7.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
8. 8.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the pipe colour (d) the water pressure
9. 9.📏 How many amperes (A) is 1800 mA? =
10. 10.📏 How many watts (W) is 3.6 kW?
11. 11.📏 How many kilo-ohms (kΩ) is 400 Ω? =
12. 12.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the water tank lid (d) the tap handle
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
14. 14.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
15. 15.📏 How many watts (W) is 0.2 kW?
16. 16.📏 How many amperes (A) is 2190 mA? =
17. 17.Which of these is measured in watts (W)? (a) power (b) the push of a cell (c) the flow of charge (d) how much a part resists
18. 18.True or false: the ammeter is joined in series. (a) True (b) False
19. 19.📏 How many kilowatts (kW) is 600 W? =
20. 20.Which of these is measured in ohms (Ω)? (a) current (b) voltage (c) the push of a cell (d) resistance
21. 21.True or false: the flow of charge is measured in watts (W). (a) False (b) True
22. 22.True or false: resistance is measured in amperes (A). (a) False (b) True
23. 23.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
24. 24.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1024 (d) 1000
25. 25.📏 How many kilo-ohms (kΩ) is 9600 Ω? =
26. 26.True or false: the ammeter is joined across a part. (a) True (b) False
27. 27.True or false: power is measured in watts (W). (a) False (b) True
28. 28.True or false: how much a part resists is measured in volts (V). (a) True (b) False
29. 29.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
30. 30.True or false: current is measured in amperes (A). (a) False (b) True
31. 31.📏 How many ohms (Ω) is 1.5 kΩ?
32. 32.True or false: resistance is measured in ohms (Ω). (a) True (b) False
33. 33.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 1000 (d) 60
34. 34.📏 How many kilowatts (kW) is 450 W? =
35. 35.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
36. 36.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
37. 37.📏 How many kilo-ohms (kΩ) is 9900 Ω? =
38. 38.True or false: the voltmeter measures voltage. (a) True (b) False
39. 39.True or false: the ammeter measures voltage. (a) False (b) True
40. 40.True or false: the ammeter measures current. (a) True (b) False

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