# What are the topics in gravitation Class 11?

## What are the topics in gravitation Class 11?

Main topics discussed in Class 11 Physics chapter- Gravitation are:

• Kepler’s laws.
• Universal law of gravitation.
• The gravitational constant.
• Acceleration due to gravity of the earth.
• Acceleration due to gravity below and above the surface of earth.
• Gravitational potential energy.
• Escape speed.
• Earth satellites.

What is gravity physics class 11?

Newton’s law of gravitation states that every particle in the universe attracts every other particle with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them. The direction of the force is along the line joining the particles.

### Is gravitation independent chapter?

The force of attraction between two unit masses put at a unit distance apart is numerically equal to the universal gravitation constant. Notes: 1. The gravitational force is independent of the intervening medium.

What is weightlessness Class 11 Ncert?

Weightlessness is a condition of free fall, in which the effect of gravity is cancelled by the inertial (e.g., centrifugal) force resulting from orbital flight. There is no force of gravity acting on the objects. It is the condition in which body does not feel its weight at all.

## Is gravitation a difficult chapter?

Gravitation is an easy to understand and a highly scoring topic. Not the most important. But yes you can expect 1-2 questions from this topic, which could be solved easily.

What is important in gravitation chapter?

Concepts like Newton’s Law of Gravitation, Acceleration due to gravity, Gravitational potential energy, Kepler’s laws of planetary motion, Escape velocity, etc are the most important concept from this chapter with respect to various competitive exam.

### Is gravitation easy chapter?

What should I study before gravitation?

If you wish to know the prerequisites for this chapter then you need to have a clear concept about Mechanics, Newton’s laws of motion, equation of motion and also idea about Work, potential and Energy concept.

## What is gravitational potential called?

The amount of work done in moving a unit test mass from infinity into the gravitational influence of source mass is known as gravitational potential.

What is the difference between freefall and weightlessness?

Freefall is the situation of having zero weight of a body with certain mass and acquired when a body is in free fall or there is no gravity. Weightlessness of a body is the state in which the body experiences that the body is not being attracted by any force.

### What is gravity number?

The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s. There are slight variations in this numerical value (to the second decimal place) that are dependent primarily upon on altitude.

Can I study gravitation without rotation?

You can do gravitation anytime.. but for doing doing rotational motion you should know some basics of vector, mechanics and circular motion.. all this is necessary and is used while studying the rotational motion..

## What is the unit of gravitational?

In SI units, G has the value 6.67 × 10-11 Newtons kg-2 m2. The direction of the force is in a straight line between the two bodies and is attractive.