Gravitation
Assignment on this topic Newton's law of gravitation, properties of gravitational force, centre of mass and centre of gravity
1. State the Newton's law of gravitation.
2. Write the mathematical equation that describes the gravitational force between two particles of mass m, and m2 placed at a distance R from each other.
3. How does the gravitational force between the two particles change if the distance between them, is doubled?
4. What is the significance of Newton's law of gravitation in nature?
5. What are the properties of the gravitational force?
6. What are the units of gravitational constant (G)?
7. Why is G called the universal constant?
8. What is meant by the centre of mass and the centre of gravity?
9. Gravitational force acts on all the objects in proportion to their masses. Then why does a heavy object not fall faster?
10. What happens to the force between two objects, if (a) the mass of one object is doubled?
(b) the distance between the objects is doubled?
(c) the masses of both the objects are doubled?
11. The gravitational force on the surface of the moon is only 1/6 as strong as gravitational force on the earth. What is the weight in Newtons of a 10 kg object on the moon and on the earth?
Assignment on this topic Newton's law of gravitation, properties of gravitational force, centre of mass and centre of gravity
1. State the Newton's law of gravitation.
2. Write the mathematical equation that describes the gravitational force between two particles of mass m, and m2 placed at a distance R from each other.
3. How does the gravitational force between the two particles change if the distance between them, is doubled?
4. What is the significance of Newton's law of gravitation in nature?
5. What are the properties of the gravitational force?
6. What are the units of gravitational constant (G)?
7. Why is G called the universal constant?
8. What is meant by the centre of mass and the centre of gravity?
9. Gravitational force acts on all the objects in proportion to their masses. Then why does a heavy object not fall faster?
10. What happens to the force between two objects, if (a) the mass of one object is doubled?
(b) the distance between the objects is doubled?
(c) the masses of both the objects are doubled?
11. The gravitational force on the surface of the moon is only 1/6 as strong as gravitational force on the earth. What is the weight in Newtons of a 10 kg object on the moon and on the earth?
