Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 656 · 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 energy used each second? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
2. 2.True or false: the voltmeter measures voltage. (a) True (b) False
3. 3.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
4. 4.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
6. 6.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 10 (d) 1024
7. 7.Which of these is measured in amperes (A)? (a) energy used each second (b) resistance (c) current (d) voltage
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the pipe colour (d) the tap handle
9. 9.📏 How many kilo-ohms (kΩ) is 500 Ω? =
10. 10.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
11. 11.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
12. 12.Which of these is measured in volts (V)? (a) resistance (b) the flow of charge (c) the push of a cell (d) power
13. 13.📏 How many amperes (A) is 690 mA? =
14. 14.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
15. 15.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) power (d) the push of a cell
16. 16.Which of these is measured in watts (W)? (a) the flow of charge (b) voltage (c) the push of a cell (d) energy used each second
17. 17.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
18. 18.True or false: the voltmeter is joined in series. (a) False (b) True
19. 19.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) power (d) resistance
20. 20.True or false: the ammeter is joined in series. (a) False (b) True
21. 21.True or false: current is measured in watts (W). (a) False (b) True
22. 22.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) voltage (d) power
23. 23.📏 How many watts (W) is 1.4 kW?
24. 24.True or false: the voltmeter is joined across a part. (a) True (b) False
25. 25.True or false: the ammeter is joined across a part. (a) True (b) False
26. 26.📏 How many watts (W) is 3.2 kW?
27. 27.True or false: the ammeter measures current. (a) True (b) False
28. 28.📏 How many milliamperes (mA) is 1.99 A?
29. 29.📏 How many amperes (A) is 360 mA? =
30. 30.True or false: energy used each second is measured in watts (W). (a) False (b) True
31. 31.True or false: the ammeter measures voltage. (a) True (b) False
32. 32.📏 How many milliamperes (mA) is 1.38 A?
33. 33.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
34. 34.True or false: the flow of charge is measured in volts (V). (a) True (b) False
35. 35.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the flow of water (d) the water pressure
36. 36.Which of these is measured in ohms (Ω)? (a) resistance (b) the push of a cell (c) energy used each second (d) current
37. 37.Which of these is measured in volts (V)? (a) resistance (b) the flow of charge (c) voltage (d) current
38. 38.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
39. 39.📏 How many kilowatts (kW) is 1350 W? =
40. 40.📏 How many kilo-ohms (kΩ) is 7200 Ω? =

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