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Physics – General – LS

Physics – Set 4

Dear ! This is Physics – Set 4  Quiz and it contains 100 questions.

Happy Learning!

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1. Who defined the law of gravitation ?

 

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2. What type of heat transfer is boiling water?

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3. Gravitational force is maximum at which place

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4. A black body can absorb radiations of :

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5. Hot water is poured simultaneously in four metallic tumblers painted outside with different points. After some time the water will be found to have cooled most in the tumbler painted.

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6. When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will:

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7. When a running car stops suddenly, the passengers tends to lean forward because of:

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8. Why does a cannon recoil after firing ?

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9. A person is hurt on kicking a stone due to

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10. When a card placed over a tumbler is flicked with the finger, the coin placed over it falls in the tumbler.

 

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11. During uniform motion of an object along a straight line, its ________ remains constant with time.

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12. Sun’s heat reaches us by

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13. Heat from the sun reaches earth by the process of

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14. Plants are dried up in winter due to frost because

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15. A freely suspended magnet remains horizontal at

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16. Heat from the Sun reaches the Earth by

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17. Which among the following is the fundamental quantity ?

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18. A man jumping out of a moving train is thrown

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19. While catching a ball, a player pulls down his hands to lower the–

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20. The unit of energy in MKS system is

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21. If the length of a simple pendulum is halved then its period of oscillation is

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22. Which best describes how air moves during convection?

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23. Magnetic keepers are used to protect magnets from :

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24. According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ________ of an object.

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25. 1 amu is equivalent to

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26. When a bar magnet is cut into two equal halves, the pole strength of each piece –

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27. The Length of the Day is determined in

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28. One nanometer is equal to ________ meters.

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29. The cover of a solar cooker is made of glass because

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30. What is the gravity of moon as compared to the Earth

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31. 1 m/s equals ________ km/hr

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32. A body absorbs heat most if it is

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33. If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will

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34. The time period of a seconds pendulum is

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35. Woollen cloth protects the body from cold because

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36. A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?

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37. A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because

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38. Parsec is the unit of

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39. Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted.

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40. Ocean currents are an example of

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41. The motion of a body that repeats itself after a regular interval of time is

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42. The moment of inertia of a body does not depend upon its

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43. Which law is also called law of inertia ?

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44. 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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45. Two stones of different masses are dropped simultaneously from the top of a building

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46. According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ________ of an object.

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47. One billionth of a second is called

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48. One light year is equal to

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49. The earth is a

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50. The word ”insolation’ means

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51. Why two thin shirts can keep us warmer than a single thick shirt in winter ?

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52. Why do birds not have respiratory trouble at the time of flying at high altitude ?

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53. A man jumping out of a moving train is thrown

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54. The word ”insolation’ means

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55. For every action, there is an equal and opposite reaction, is Newton’s

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56. When does land breeze occur?

 

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57. Which best describes how air moves during convection?

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58. A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls

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59. When does land breeze occur?

 

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60. When a ring of metal is heated what happens to its hole ?

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61. The moment of inertia of a body does not depend upon

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62. A permanent magnet can affect

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63. What is the fundamental unit of amount of a substance?

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64. Which of the following pairs of physical quantities have the same dimensions?

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65. It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?

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66. Which of the following never occurs singly in nature?

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67. A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that

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68. A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to

 

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69. Heat transfer by conduction occurs when molecules

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70. In the Earth, the weight of a body is maximum at the

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71. When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object’s velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?

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72. The cooling by a desert Cooler is based on:

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73. A storm is predicted if atmospheric pressure

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74. Ventilators are provided near the ceiling of the room because

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75. Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in

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76. Global warming is expected to result in

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77. Wollen clothes keep the body warm because

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78. Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water

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79. What type of heat transfer is boiling water?

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80. Rocket works on the principle of

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81. A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?

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82. One billionth of a second is called

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83. In general, which is the cause of a land breeze?

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84. An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton’s

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85. Momentum is measured as the product of :

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86. A light year is a measure of :

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87. What is the force of attraction between any two bodies by virtue of their masses is called?

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88. The inability of a body to change its state of rest or uniform motion along a straight line is called its

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89. When a body falls from an aeroplane, there is increase in its

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90. Negative acceleration is in the opposite direction of:

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91. An athlete runs before long jump to get advantage on

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92. Which of the following criterion is used for any metal to be used as a cooking material ?

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93. If an object moves with constant velocity,

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94. Rate of change of momentum is

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95. On which principle does the hydraulic lift works?

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96. A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift is

 

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97. Newton’s first law of motion gives the concept of

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98. A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance

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99. When a bullet is fired from a gun

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100. The base of an electric iron is brightly polished mainly

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