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Physics – General – LS

Physics – Set 5

Dear ! This is Physics – Set 5  Quiz and it contains 100 questions.

Happy Learning!

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1. What principle/law explains the working of the hydraulic brakes in automobiles ?

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2. The atmospheric air is held to the Earth by :

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3. If velocity is constant then acceleration is what?

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4. Air moves from the region where the air ________

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5. Anemometer is used to measure

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6. Formula for distance is

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7. Hydraulic brakes in automobile work on

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8. The motion of the wheels of a bullock-cart while moving on the road is an example of

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9. Speed of sound in air is unaffected by change in

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10. What is the minimum distance (in metres) required to hear an echo?

 

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11. Scalar Quantities are

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12. Which process allows water to enter the atmosphere?

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13. The motion of a freely falling body is an example of ________ accelerated motion.

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14. Hydraulic machines work under the Principle of :

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15. What does the slope of a velocity time graph represent?

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16. The pressure of a fluid varies with depth h as P = PQ+pgh, where p is the fluid density. This expression is associated with

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17. The instrument which uses sound waves to measure the depth of oceans is

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18. The temperature at which water boils depends mainly on

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19. Why does bleeding occur through the nose in high mountainous regions ?

 

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20. The Hydraulic Break works on the principle of ________ .

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21. Which term is not associated with sound wave?

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22. Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds

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23. The propagation of sound waves in a gas involves

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24. A vacuum cleaner works on the principle of pressure difference. On the moon it will

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25. Bats can sense obstacles because they produce

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26. In ________ motion of a body its velocity varies with time.

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27. RADAR is used for

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28. Anemometer is an instrument meant for measuring ________

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29. Increased wind speed is accompanied by a reduced air ________

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30. Rate of change of displacement is known as ________

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31. For a body moving with non-uniform velocity and uniform acceleration

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32. Air pressure is usually highest when the air is

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33. Echolocation is an adaptation bats use to

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34. For which of the following game, players must have the knowledge of Pascal’s law?

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35. Which waves cannot be transmitted through vacuum?

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36. Ice cubes are added to a glass of pure water and a glass of pure alcohol. The ice would be

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37. Speed in a given direction is called

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38. When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

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39. When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as

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40. Hydraulic brakes work on the principle of

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41. A barometer is kept inside a bell jar. Air is slowly pumped out of the jar.

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42. If we want to calculate the pressure of a liquid at the bottom of a vessel, the quantity which is not required to determine it, is

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43. Weight of a body is maximum at the:

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44. Which among the following determines the pitch of a sound?

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45. A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?

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46. Sound is heard over longer distances on rainy days because

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47. During ________ motion of an object along a straight line, the velocity remains constant with time.

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48. Acceleration is

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49. A fountain pen works on the principle of

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50. The absolute zero is a temperature at which ________

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51. Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s

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52. Velocity of sound in air does not change with the change of

 

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53. Submerged objects can be located using

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54. Which among the following is false about displacement?

 

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55. Alcohol is more volatile than water because ________ is lower than water.

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56. A manometer is used to measure

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57. A car accelerates uniformly from 18 kmph to 72 kmph in 5 s. The acceleration of the car (in m/s2) is:

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58. Middle latitude cyclones are fueled by?

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59. A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because

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60. When a barometer reading suddenly recedes, it indicates that climate–

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61. Which one among the following doesn’t have any effect on velocity of sound ?

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62. The velocity of sound in moist air is more than in dry air because the moist air has

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63. Skating on ice is possible because

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64. When the barometer reading dips suddenly, it is an indication of

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65. When a barometer is rising air pressure is

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66. Velocity of sound in air does not depend on

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67. Sound travels fastest in

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68. The sudden fall of atmospheric pressure indicates

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69. A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4 seconds.

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70. As we go from Equator to North pole the value of ”g’, the acceleration due to gravity

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71. The slope of a velocity-time graph represents

 

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72. Which phenomenon is responsible for the echo of sound wave?

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73. For a body moving with uniform acceleration its final velocity equals ________

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74. Echo is heard due to

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75. If a barometric reading is falling, this usually indicates what

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76. The hydraulic brakes used in automobiles is a direct application of :

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77. Reading of a barometer going down is an indication of

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78. Which one of the following animals can hear ultrasonic sound ?

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79. Loudness of sound depends on

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80. Acceleration is the rate of change of

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81. The pressure exerted by a 760 mm column of mercury at 0°C is known as

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82. The bats can fly in the dark because

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83. When a body is accelerated, then the velocity will be also

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84. The velocity of sound is more in

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85. The motion of a freely falling body is an example of ________ motion.

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86. A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground.

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87. The instrument used to measure the speed of the wind is

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88. Who is the first person to define speed

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89. A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an

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90. Megahertz is a measurement of

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91. For an object, the state of rest is considered to be the state of ________ speed.

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92. Air pressure is measured in which of the following units?

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93. Earliest thermometer was developed by

 

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94. Rate at which velocity changes over time?

 

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95. Propagation of sound can be visualised as propagation of ________ variations in the medium

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96. The sound produced by a bat is–

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97. Which of the following instruments is used to measure humidity ?

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98. Permissible noise level at Residential area during night time is :

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99. A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is

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100. Why is it difficult to breathe at higher altitudes?

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