Question

Fill in the blanks
1. The value of G remains ......... everywhere.
2. The value of g is......... at different places.
3. The value of g on the surface of earth is.....
4. If a piece of paper and coin are released in vacuum they will reach the
ground ........
5. If an object is thrown upwards reaching to a certain height it starts to fall
because gravitational acceleration acts always towards...of the earth.
6. The force by which Earth attracts an object towards its Centre is called
its...
7. The value of g is.......... at the poles than at the equator.
8. The mass of an object is the measure of its......
9. The....... Of an object is the force with which it is attracted towards the
earth
10.SI unit of weight is.....
Answer the following Questions.
1. Which force is responsible for the stability of our universe?
2. Which force is required to maintain a body on uniform circular motion?
3. How is the weight of an object related to its mass.
4. Mass of a body on Earth is 40 Kg, what is the mass on the moon?
5. The acceleration of a freely falling body does not depend on the mass of
the body.Prove this.
6. Establish the relation between g and G.
7. With what force will body of mass 1 kilogram get attracted to the earth?
8. Write the unit of gravitational constant.
9. Write the relationship and difference between gravitational acceleration
and gravitational constant.
10.What is the mass of an object whose weight is 49 Newton.
11.If M1 and M2 are at a distance of R, what is the attraction force
between them.
12.If a ball is thrown up in the sky, what will happen to its value of g ?
13. A car Falls off a leads and drops to the ground in 0.5sec.Let
g=10m/s2.What is its speed on touching the ground?

Answer 1

Answer:

Value of gravitational constant on the earth is 6.67×10−11 m3 kg−1 s−2

ii. Value of gravitational constant on the Moon is 6.67×10−11 m3 kg−1 s−2

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Answer 2

Answer:

The value of G is maximum at the poles. This is due to the closeness between the poles and the center of the earth........

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