Gravitation Quiz
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What is the value of Gravitational constant, G?
Ans. 6.67 x 10-11 Nm2/kg2
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The atmosphere consisting of a large number of gases is held to the earth by
Ans. Gravity
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Who gave the laws of planetary motion?
Ans. Kepler
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What will be the mass of an object of 98 kg on moon?
Ans. 98 kg
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Where on the earth the value of g is maximum?
Ans. At poles
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Which scientist demonstrated that in the absence of air resistance 9 ( that is in vacuum) even a feather and a coin fell at the same rate?
Ans. Robert Boyle
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What type of force is gravity?
Ans. Pull
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If the Moon was closer to the Earth the force between them would:
Ans. Get bigger
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Who created an experiment to weigh the Earth?
Ans. Henry Cavendish
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True or False: The gravitational force exerted by the Sun on the Earth is the same as the gravitational force exerted by the Earth on the Sun.
Ans. True
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As an astronaut travels far away from earth, his weight decreases because
Ans. Gravity decreases
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What is the motion of the object called moving in two dimensions under the influence of gravity?
Ans. Projectile motion
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The magnitude of the force of gravity acting on an object is
Ans. Weight
Ans. It decreases
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The weight of an object at the centre of the earth is
Ans. Zero.
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