Class 11 Physics Revision Notes for Chapter 8 - Gravitation - Free PDF Download
According to the latest CBSE syllabus, three units, Unit - IV Work, Energy, and Power, Unit - V Motion of System of Particles, and Unit - VI Gravitation, combined will have a weightage of 17 marks. Chapter - 8 Gravitation is considered one of the most important chapters in the syllabus of competitive exams like NEET and JEE. In NEET, this chapter has a 2% weightage, and in JEE Main exam, you can expect one question from this chapter. If you are looking for reliable, easy-to-understand Chapter - 8 Gravitation Notes, then you are in the right place.
At Vedantu, you will get comprehensive Gravitation Class 11 Notes, which will not only be helpful for scoring high in the Class XI exam but also will help you prepare for the competitive exams. Our subject experts, with their extensive research on the latest CBSE syllabus, have shared the most important topics of the Gravitation Chapter, as listed below.
FAQs on Gravitation Class 11 Notes CBSE Physics Chapter 8 [Free PDF Download]
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2. What do you Mean by Gravitational Potential?
The gravitational potential at a given point is the amount of work done in bringing a unit mass from infinity to that point without acceleration.
3. Write the Difference Between Mass and Weight.
Mass of an object is the amount of matter it contains, whereas the weight of an object is the measure of the force exerted on it by the gravity or the measure of how much gravitational attraction an object feels.
4. What is Escape Velocity?
Escape velocity is the minimum speed required by a non-propellant object to escape the Earth by counteracting its gravitational pull.
On the surface of Earth, the escape velocity (ve) is 11.2 Km/s (this speed is 33 times the speed of sound).
5. What are some important questions in Chapter 8 of Class 11 Physics?
Chapter 8 of Class 11 Physics is all about gravitation and it is one of the most important chapters in Physics for Class 11 students. For this reason, some very important questions are asked from this chapter and which form the base for higher studies as well. The topics stated below cover the areas from where these important questions are asked:
Kepler’s Laws and Universal Law of Gravitation
Gravitational Potential Energy
Characteristics of gravitational force
Acceleration due to gravity.
6. How can I understand Chapter 8 of Class 11 Physics?
In Class 11, students are introduced to the concept of gravitation in detail. The topic is very complicated and understanding it requires a little bit of help. The revision notes available on Vedantu are a one-stop destination that students can use to understand the chapter and topics related to gravitation. All the concepts and topics in the chapter that pass over the students’ heads are broken down into simple terms for easy comprehension and understanding. Thus, students would be able to grasp everything in the chapter. You can also access the study materials through the Vedantu App. All the resources are available free of cost.
7. What are the topics covered in Chapter 8 of Class 11 Physics?
The subject of Physics introduces students to gravitation and its various concepts in Chapter 8. Students are taught Kepler’s Laws on gravitation, Newton’s Law or the Universal Gravitational Law and its constant, characteristics of gravitational force, gravitational potential energy, acceleration due to gravity, and problems related to it. Thus, the chapter equips students with all they need to know about the basics of gravitation required for their higher studies. In short, the chapter teaches them all about gravitation.
8. What are some important equations in Chapter 8 of Class 11 Physics?
Since Chapter 8 of Class 11 Physics focuses on the concepts regarding gravitation, the important equations of the chapter would follow closely behind all these concepts. Once students understand the basics and ideas behind the formula, they can solve all problems with ease. Some important formulae are pointed out below:
Universal Law of Gravitation: F=Gm1m2/r2
Relationship between G and g is g=Gm/R2
At a particular height, acceleration due to gravity: ga=g[1-(2h/R)]
Similarly, at a certain depth: gd=g[1-(h/R)]
Gravitational field strength: E=F/m
9. What are the characteristics of gravitational force?
When two masses are separated by a distance, a force of attraction acts between them. This force is what is called the gravitational force. Three major characteristics of the gravitational force are discussed in Class 11:
Since the force exists between the two particles, it is long-ranged in nature as they do not depend on the medium separating them.
There is an inversely proportional relationship between them, that is, force and distance.
This force is attractive in nature.