Question 71 : Newton apply Huygens's formula to calculate?
1. Centripetal acceleration of the earth.
2. Centrifugal acceleration of the Sun.
3. Centripetal acceleration of the moon.
4. Centripetal acceleration of the Satellite.
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Question 72 : in 1666, Newton concluded that the force which caused an apple to fall to the ground and the force that kept the moon in its orbit around the earth is the ?
1. "Weight called as ""Weightlessness"""
2. "Acceleration called as ""Centripetal acceleration""."
3. "Universal force called as ""Artificial Gravity""."
4. "Universal force called as ""Gravitation""."
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Question 73 : The motion of falling bodies towards earth is due to the?
1. Gravitational rotation.
2. Weightlessness
3. Acceleration due to gravity.
4. Gravitational force.
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Question 74 : In order to derive the law of gravitation, Newton assume that the moon's orbit is?
1. Circular
2. Straight
3. Uniform
4. Parabolic
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Question 75 : The weight of an object in a satellite orbiting around the earth is?
1. Greater than the actual weight
2. Zero
3. Less than the actual weight
4. Actual weight
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Question 76 : The magnitude of the weight is expressed in the units of?
1. Mass (Kilogram)
2. Displacement (meter)
3. Force (Newton)
4. None of these
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Question 77 : what Newton made the hypothesis?
1. That every body in the universe exerts a gravitational force on every other body.
2. That heavier body in the universe exerts a gravitational force on the lighter bodies.
3. That gravitational force only exerts on the bodies on earth.
4. That only the Sun gravitational force is responsible for all the motion in this universe.
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