extra questions gravitation class 9
Answers
Answer:
Gravitation Class 9 Extra Questions Very Short Answer Questions
Question 1.
What will happen to the gravitational force between two bodies if the masses of one body is doubled?
Answer:
If the mass of one body is doubled, force is also doubled.
Question 2.
Why is ‘G’ called the universal gravitational constant?
Answer:
The constant ‘G’ is universal because it is independent of the nature and sizes of bodies, the space where they are kept and at the time at which the force is considered.
Question 3.
Who formulated the universal law of gravitation?
Answer:
Isaac Newton
Question 4.
How is gravitation different from gravity?
Answer:
Gravitation is the force of attraction between any two bodies while gravity refers to attraction between any body and the earth.
Explanation
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