HARD
10th Maharashtra Board
IMPORTANT
Earn 100

What is the difference between mass and weight of an object? Will the mass and weight of an object on the earth be same as their values on Mars? Why?

Important Questions on Gravitation

HARD
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 2
What are (i) free fall, (ii) acceleration due to gravity (iii) escape velocity (iv) centripetal force?
HARD
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 2
Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?
HARD
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 2
A stone thrown vertically upwards with initial velocity u reaches a height ‘h’ before coming down. Show that the time taken to go up is same as the time taken to come down.
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 2
If the value of g suddenly becomes twice its value, it will become two times more difficult to pull a heavy object along the floor. Why?
EASY
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 3
Explain why the value of g is zero at the centre of the earth.
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 4
Let the period of revolution of a planet at a distance R from a star be T. Prove that if it was at a distance of 2R from the star, its period of revolution will be 8T.
HARD
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 5
An object takes 5 s to reach the ground from a height of 5 m on a planet. What is the value of g on the planet?
HARD
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 1 - Gravitation>Exercise>Q 5
The radius of planet A is half the radius of planet B. If the mass of A is MA, what must be the mass of B so that the value of g on B is half that of its value on A?