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a. Gravity_
c. Freefall
e. Acceleration due to gravity
2. Answer the following questions.
b. Gravitational constant
d. Weightlessness
f. Mass
a. Define the terms 'gravity' and 'gravitation'.
b. State Newton's universal law of gravitation.
c. Verify Newton's law of gravitation.
g. Weight
d. What change in gravitation occurs if the distance between two bodies is
doubled by keeping the mass constant? Derive the relation to show effect.
e. Why is 'G' called universal constant? Write its SI unit and value.
f. Why does an object weigh more in Terai than on the top of Mt. Everest?
g. What is gravity? What are the factors that affect gravity?
h. What is freefall? A satellite orbiting around the earth is always in the state of
freefall. Why is it so? Give reason.
i. What is weightlessness? Mention its condition.
The mutual force of attraction between an apple and the earth is equal and
pposite, but the apple falls down to the earth and the earth appears to be at
est. Why?
It is dangerous to jump from a significant height. Why?

Gravity: Gravity is the force that attracts a body towards the center of the Earth or towards any other physical body having mass. Gravitation: Gravitation is the force of attraction that exists between any two masses in the universe.

Newton's Universal Law of Gravitation: Newton's law states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Verification of Newton's Law of Gravitation: The verification of Newton's law involves experimental evidence gathered over centuries through observations and calculations that consistently support its principles.

Learn more about Gravity, Newton's Law of Gravitation here:

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