Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 651 · 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 of these is measured in watts (W)? (a) current (b) power (c) the push of a cell (d) voltage
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
3. 3.True or false: the voltmeter measures current. (a) False (b) True
4. 4.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
5. 5.Which of these is measured in volts (V)? (a) current (b) resistance (c) energy used each second (d) the push of a cell
6. 6.📏 How many kilowatts (kW) is 1150 W? =
7. 7.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
8. 8.Which of these is measured in volts (V)? (a) energy used each second (b) how much a part resists (c) voltage (d) resistance
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
10. 10.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
11. 11.True or false: the voltmeter is joined in series. (a) True (b) False
12. 12.📏 How many milliamperes (mA) is 2.97 A?
13. 13.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) voltage (d) the push of a cell
14. 14.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
15. 15.True or false: the ammeter measures voltage. (a) True (b) False
16. 16.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
17. 17.📏 Which unit measures energy used each second? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
18. 18.True or false: the voltmeter measures voltage. (a) False (b) True
19. 19.📏 How many kilowatts (kW) is 650 W? =
20. 20.📏 How many kilowatts (kW) is 4050 W? =
21. 21.True or false: the push of a cell is measured in volts (V). (a) False (b) True
22. 22.📏 How many amperes (A) is 2770 mA? =
23. 23.True or false: voltage is measured in amperes (A). (a) True (b) False
24. 24.Which of these is measured in watts (W)? (a) resistance (b) energy used each second (c) current (d) the flow of charge
25. 25.True or false: the ammeter is joined across a part. (a) False (b) True
26. 26.True or false: current is measured in watts (W). (a) False (b) True
27. 27.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
28. 28.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1000 (d) 1024
29. 29.📏 How many kilo-ohms (kΩ) is 3600 Ω? =
30. 30.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
31. 31.True or false: the ammeter is joined in series. (a) False (b) True
32. 32.📏 How many watts (W) is 4.9 kW?
33. 33.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
34. 34.📏 How many kilo-ohms (kΩ) is 500 Ω? =
35. 35.📏 How many watts (W) is 1.6 kW?
36. 36.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) power (d) current
37. 37.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
38. 38.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
39. 39.📏 How many milliamperes (mA) is 0.4 A?
40. 40.📏 How many watts (W) is 1.3 kW?

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