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Physics – General – LS

Physics – Set 3

Dear ! This is Physics – Set 3  Quiz and it contains 100 questions.

Happy Learning!

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1. When water freezes its density

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2. The density of the liquid when heated

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3. A bimetal made copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated, it will

 

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4. Thermocouple consists of

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5. When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of

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6. A device which is used to limit the current in an electrical circuit is called a

 

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7. In general, which is the cause of a sea breeze?

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8. Which of the following are methods of heat transfer?

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9. When heated from 0 to 100oC volume of a given mass of water will :

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10. Electrical Energy is the energy of

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11. What is the full form of “RADAR” ?

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12. Fish and other aquatic creatures can live inside a deep frozen pond because

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13. Speed of sound is maximum in which among the following?

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14. Which of the following is not an intrusive igneous body?

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15. The density of water is 1 g/cc. This is strictly valid at

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16. Compressions and Rarefactions are characteristic of

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17. Which determines the frequency of a sound wave?

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18. Sound following a flash of lightning is called

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19. Sound waves do not show the phenomenon of

 

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20. The cause for the Tsunami, as deduced by the seismologists, is

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21. The speed of sound travel fastest through

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22. The S.I. unit of electric charge is :

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23. Lightning heats the surrounding air to

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24. Lakes freeze in cold countries in winter, leaving the water underneath at

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25. The number of waves per second in a sound is called ________ of that sound.

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26. Sound cannot pass through

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27. Water has maximum density at

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28. What apparatus is used to locate a submerged object?

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29. The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as:

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30. In SONAR which kind of wave is used?

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31. Electrical burns occur principally because of

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32. A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

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33. Which conservation principle is applicable in the case of the motion of a rocket?

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34. The SI unit of resistance is:

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35. The speed of sound in air depends on

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36. Sound becomes hazardous noise pollution at decibels?

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37. Quality of a musical note depends on

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38. The pitch of sound depends on its

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39. In severe winter, in cold countries water pipes burst because

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40. The density of a gas is maximum at

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41. Ohm’s law is valid in case of

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42. Speed of sound is the greatest in :

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43. Decibel is a term connected with :

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44. Heat energy is transferred by conduction whenever molecules

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45. The freezing point of fresh water is ________ .

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46. Which is best used as a sound absorbing material in partition walls ?

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47. Outside of cooking utensils are generally left black from below because

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48. Sound waves cannot travel through

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49. The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because

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50. Acceptable noise level for human ear

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51. A decibel is

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52. Infrasonic sound has a frequency lower than

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53. The S.I. unit of electric charge is :

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54. What is the SI unit of intensity of sound?

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55. An instrument that records earthquakes is

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56. A white and smooth surface is

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57. The boiling point of liquids vary as

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58. What is the SI unit of electric current?

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59. The unit of noise pollution (level) is :

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60. The substance which conducts current in the solid state is

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61. Ice is packed in saw dust because

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62. Specific gravity is defined as the ratio of

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63. If a band is played on the moon the sound will

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64. Which of the following laws validates the statement that matter can neither be created nor destroyed ?

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65. An object at rest may have

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66. Thermal expansion of materials arises from

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67. Decibel is the unit used for

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68. As water is cooled from 4 deg C to 0 deg C, its density

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69. Indicate the false statement about the resistance of a wire

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70. If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is ________

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71. The rate of flow of electric charge is measured in

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72. The atmosphere is heated mainly by

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73. The instrument for measuring intensity of earthquakes is called

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74. The colours of stars depend on their

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75. Hertz is the SI unit of

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76. Materials that allow electricity to flow are called

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77. To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor

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78. Noise is measured in

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79. The velocity of sound in air

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80. The density of water is 1 g/cc. This is strictly valid at

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81. Heat transfer by radiation mainly depends upon

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82. A small gap is left at the joints of rails in a railway track to

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83. Why does ice covered in sawdust not melt quickly ?

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84. Electric current is measured by which instrument?

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85. The velocity of the sound is highest in

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86. Hertz is a unit for measuring

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87. Instrument used to study the behaviour of a vibrating string is :

 

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88. Pipelines in cold countries often burst in winter, because

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89. The shape of our milky way galaxy is

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90. Least audible sound for most of the human ear is :

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91. Man perceives sound vibrations in the frequency ranges of

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92. The fundamental scientific principle in the operation of battery is

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93. Which is a common first indicator of an approaching thunderstorm?

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94. Among the following materials sound travels fastest in

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95. The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes?

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96. The direction of heat flow between two objects depends on

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97. Which statement best describes an igneous intrusion?

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98. For which of the following substances, the resistance decreases with increase in temperature?

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99. Railway tracks are banked on curves so that

 

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100. When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to :

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