Class 9 Gravitation MCQ Online Test

The net force required to keep a body in uniform circular motion is called a) Centripetal force b) Centrifugal force c) Magnetic force d) Mechanical force

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Motion of body with constant speed in circular path is called a) uniform circular motion b) non-uniform circular motion c) Both (a) & (b) d) Neither (a) nor (b)

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The acceleration due to gravity is zero at a) the equator b) poles c) the centre of the earth d) all of these

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The normal force per unit area is called a) balanced force b) thrust c) pressure d) Pascal

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Choose the correct option 1) We observe that an object dropped from certain height falls towards the earth. 2) We know that all planets move around the sun 3) We observe moon moves around the earth 4) All the above

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Uniform circular motion is an example of 1) Heavy weight 2) uniform accelerated motion 3) uniform motion 4) all the above

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The state of a freely falling body is 1) Heavy weight 2) Less weight 3) Weight less 4) Constant weight

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When we place a small wooden block on a rotating disc fixed horizontally to an electric motor we observe 1) the wooden block making revolutions with constant speed 2) the wooden block moves in a circular pat with constant time period 3) the wooden block is said to be in uniform circular motion 4) all the above

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Newton developed the Idea of ( Class 9 Gravitation MCQ Online Test ) 1) gravitation between any two masses 2) gravitation between some masses 3) magnetism between any two masses 4) non of these

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The examples of non uniform accelerated motion. 1) The motion of earth around the sun 2) The motion of the moon around the earth 3) The motion of apple falling freely on to the ground 4) Both a and b

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