The net force required to keep a body in uniform circular motion is calleda) Centripetal forceb) Centrifugal forcec) Magnetic forced) Mechanical force
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Motion of body with constant speed in circular path is calleda) uniform circular motionb) non-uniform circular motionc) Both (a) & (b)d) Neither (a) nor (b)
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The acceleration due to gravity is zero ata) the equatorb) polesc) the centre of the earthd) all of these
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The normal force per unit area is calleda) balanced forceb) thrustc) pressured) Pascal
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Choose the correct option1) We observe that an object dropped from certain height falls towards the earth.2) We know that all planets move around the sun3) We observe moon moves around the earth4) All the above
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Uniform circular motion is an example of1) Heavy weight2) uniform accelerated motion3) uniform motion4) all the above
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The state of a freely falling body is1) Heavy weight2) Less weight3) Weight less4) Constant weight
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When we place a small wooden block on a rotating disc fixed horizontally to an electric motor we observe1) the wooden block making revolutions with constant speed2) the wooden block moves in a circular pat with constant time period3) the wooden block is said to be in uniform circular motion4) all the above
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Newton developed the Idea of ( Class 9 Gravitation MCQ Online Test )1) gravitation between any two masses2) gravitation between some masses3) magnetism between any two masses4) non of these