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प्रश्न
What is the difference between gravity and gravitation?
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उत्तर
Gravity is the force of attraction between the object and the earth whereas gravitation refers to the force of attraction that exists between any two bodies that possess mass.
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संबंधित प्रश्न
State Kepler’s law which is represented by the relation r3 ∝ T2.
State and explain Kepler's laws of planetary motion. Draw diagrams to illustrate these laws.
At noon, the sun and the earth pull the objects on the earth's surface in opposite directions. At midnight, the sun and the earth pull these objects in same direction. Is the weight of an object, as measured by a spring balance on the earth's surface, more at midnight as compared to its weight at noon?
Let V and E be the gravitational potential and gravitational field at a distance r from the centre of a uniform spherical shell. Consider the following two statements :
(A) The plot of V against r is discontinuous.
(B) The plot of E against r is discontinuous.
Write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r.
How will the force of gravitation between two objects change if the distance between them is:
Made four times
Solve the following problem.
Find the gravitational force between the Sun and the Earth.
Given Mass of the Sun = 1.99 × 1030 kg
Mass of the Earth = 5.98 × 1024 kg
The average distance between the Earth and the Sun = 1.5 × 1011 m.
State Newton's universal law of gravitation. Express it with the mathematical form of force of gravitation?
How is the gravitational force between two point masses affected when they are dipped in water keeping the separation between them the same?
The gravitational force between a hollow spherical shell (of radius R and uniform density) and a point mass is F. Show the nature of F vs r graph where r is the distance of the point from the centre of the hollow spherical shell of uniform density.
