NCERT Solutions for Class 11 Physics Chapter 8 - Gravitation
Gravitation Class 11 is an essential chapter for scoring the best grades in your examination. All topics preceding Ch 8 physics class 11 are based on the concepts you’re going to learn from this chapter.
Before starting with Gravitation Class 11, it is crucial to understand that gravity and gravitation are not similar. Gravity is a force that pulls a body to the earth’s centre whereas; gravitation is the force acting between two bodies.
This chapter discusses several important questions, for example, the strength of the gravitational force existing on the earth and moon, Kepler’s law, escape velocity etc.
NCERT Solutions for Class for Class 11 Physics Chapter 8 gives a detailed explanation of the universal law of gravitation and three vital laws proposed by Kepler. It provides you detailed solutions to questions based on escape velocity, acceleration due to gravity and more.
FAQs on NCERT Solutions for Class 11 Physics Chapter 8
1. When Does the Phrase “Weight of the Earth” Make Sense?
From NCERT Solutions for Class 11 Physics Chapter 8, you can learn that the phrase “weight of the earth” does not mean anything when it’s used in relation to the gravitational field of the earth. It will only be possible to elucidate the earth’s weight by comparing it to the weight of another body. The gravitational force acting between the earth and the body will be able to determine the earth’s weight.
Class 11 Gravitation NCERT solutions do an efficient job in explaining this concept.
2. What are the Three Laws of Kepler?
The three laws of Kepler are as follows:
Law of Orbits
Law of Areas
Law of Periods
The first law states that all planets move around the sun in an orbit. Law of areas affirms the fact that a straight line connecting a planet and the sun covers equal areas in equal time intervals. The law of periods states that the square of the time taken by the planet to revolve around the sun is co-related to the semi-major axis of its orbit.
3. What is the Universal Law of Gravitation?
NCERT Solutions for Class 11 Physics Chapter 8 extensively covers the universal law of gravitation. Newton’s law of gravitation affirms that any particle of matter can be attracted to any other particle with a force which has a direct relation with the product of their masses and an inverse relation with the square of the distance between them.
Chapter 8 Class 11 Physics NCERT solutions successfully covers all essential topics within the chapter. Many students from all over India have scored significantly higher marks in physics after downloading the Gravitation Class 11 NCERT solutions PDF. Download NCERT Gravitation Class 11 PDF today from Vedantu’s platform and get instant access to all the study materials.
4. What are some of the important points about the gravitational force?
Some important points revolving around the gravitational force are given below.
It is a central and conservative force.
It is known to be the weakest force in the nature
It is applicable to every form and object irrespective of its size, shape or position
The third law of Newton is applicable to the gravitational force.
It is usually independent of the medium between the particles, unlike the electrostatic force.
For more insight into this chapter, the students should refer to the NCERT solutions. They can easily download these solutions from the website of Vedantu. Students can also access free solutions on the Vedantu app.
5. What is a satellite?
A satellite is a heavenly object that rotates around the planet. There are two types of satellites- natural satellites and artificial satellites.Natural satellites are those that are not man-made and revolve around the earth. Artificial on the other hand are those that are man-made and are launched with some objective and purpose.Some artificial satellites are
Geostationary or Parking satellites
6. What is weightlessness?
This is the situation when the effective weight of the body comes down to zero.
It can take place while falling under gravity
It can also take place inside the spacecraft or the satellite.
It is also observed at the centre of the earth
It can be experienced when the body is lying in a freely falling lift.
7. Are NCERT solutions available for Class 11 Physics Chapter 8?
Yes, the NCERT solutions can be easily downloaded for the Class 11 Physics Chapter. The student can download these solutions from the website of vedantu for free. They are designed by experts to fulfil the needs and the demands of the students. The exercises that these solutions have will help the student to get a stronghold of the concepts and thus be thorough with all the important areas that the chapter encloses. With adequate practice, the student will be able to answer any question that is asked from this particular chapter.
8. How to prepare for Class 11 Physics Chapter 8?
Firstly, it is important that the student reads the chapter thoroughly. While reading they also should mark and highlight all the important areas so that it gets easier for them to refer to them before the examination. They must develop the habit of making their own notes, where they should write down all the important formulas and definitions that this chapter demands. Lastly, they should refer to the NCERT Solutions and practice all the exercises so that the concepts are clear and they are confident enough to answer.