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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
If the moon attracts the earth, why does the earth not move towards the moon?
Choose the correct alternative:
Acceleration due to gravity increases/decreases with increasing altitude.
How will you ‘weigh the sun’, that is estimate its mass? The mean orbital radius of the earth around the sun is 1.5 × 108 km.
Three uniform spheres each having a mass M and radius a are kept in such a way that each touches the other two. Find the magnitude of the gravitational force on any of the spheres due to the other two.
You can change the direction in which an object is moving by___________.
Explain why:
The atmosphere does not escape.
State Newton's universal law of gravitation. Express it with the mathematical form of force of gravitation?
State the universal law of gravitation and derive its mathematical expression.
Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If `sqrt8` R is the distance between the centres of a ring (of mass 'm')and a sphere (mass 'M') where both have equal radius 'R'.
Observe the figure and answer the questions:
- State Newton's universal law of gravitation.
- If the distance between the two bodies is tripled, how will the gravitational force between them change?
- What will happen to gravitational force, if mass of one of the object is doubled?
