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प्रश्न
What is the importance of the universal law of gravitation?
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उत्तर
The importance of the universal law of gravitation is as follows:
- Through this law, we can find the mass of the earth, sun, etc.
- Using this law, the distance between planets and other bodies is found.
- Due to this force, the moon moves around the earth.
- It is understood from this law that the tides in the sea occur due to the moon and the sun.
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संबंधित प्रश्न
Write the answer of the question with reference to laws of gravitation.
State the universal law of gravitation.
What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 106 m).
Two spherical balls of mass 10 kg each are placed 10 cm apart. Find the gravitational force of attraction between them.
Three equal masses m are placed at the three corners of an equilateral triangle of side a. Find the force exerted by this system on another particle of mass m placed at (a) the mid-point of a side, (b) at the centre of the triangle.
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.
Multiple Choice Question. Select the correct option.
The mass of earth is 6 × 1024 kg and radius of earth is 6.4 × 106 m. The magnitude of force between the mass of 1 kg and the earth is:
The force of attraction between any two material objects is called __________.
Is the law of gravitation applicable in case of the sun and the moon?
A force can produce ________, In an object at rest. It can __________ an object and change its __________ of motion.
If the mass of one object is doubled and distance remains the same, the gravitational force will:
