NCERT Solutions for Class 11 Physics Chapter 8

Class 11 is an important class for students as it prepares you for Class 12 and board exams. The students must be very regular in their studies in Class 11 as it forms the base for a lot of concepts and is also completely new. Extramarks provides NCERT Solutions for Physics Class 11 to help students understand the subject and concepts better.

 

NCERT Solutions for Class 11 Physics Chapter 8 – Gravitation

Chapter 11 is based on Gravitation. It’s critical to understand that gravity and gravitation are not similar. Gravitation is the force acting between two bodies and gravity is a force that pulls a body to the earth’s centre. The chapter also tells us about escape speed and earth satellites. Students learn about the energy of an orbiting satellite and also geostationary and polar satellites. The chapter concludes by explaining the idea of weightlessness. The NCERT solution for class 11 Physics Chapter 8 gives a brief explanation of three vital laws proposed by Kepler and the universal law of gravitation. It comprises answers to all the questions that are listed in the practice section of Chapter 8 Gravitation. 

Chapter 8 also includes several discussions on questions like the strength of the gravitational force existing on the earth and moon, Kepler’s law, escape velocity, etc. All topics preceding Ch 8 Physics class 11 NCERT solutions are based on the concepts you’re going to learn from this chapter. The first section defines the Gravitational force and teaches you the distinction between gravitation and gravity to enable you to understand the more complex subjects in the future. The most important laws of Gravitation are Kepler’s Laws. You will learn these laws in the second section which states the Universal Law of Gravitation, Gravitational Constant, what causes Acceleration, Acceleration due to Gravity of Earth, and how Gravitation works both above and below the surface of the earth.

NCERT Class 11 Physics Chapter 8 ignites your imagination with detailed information about various types of Satellites like Geostationary and Polar Satellites.

 

Access NCERT Solutions for Class 11 Physics Chapter 8 – Gravitation

NCERT Solutions for Class 11 Physics Chapter 8 include all the important topics with a detailed explanation that aims to help students to understand the concepts better. Students who are preparing for their Class 11 Physics exams must go through NCERT Solutions for Class 11 Physics Chapter 8. NCERT Solutions for Class 11 Physics Chapter 8 Gravitation are prepared by expert teachers who have years of experience in teaching students, clearing their doubts and making concepts clear and understandable.

The chapter begins by elaborating on Kepler’s laws before moving on to the universal law of gravitation. We will also read about the gravitational constant and its equations. And about increasing speed due to gravity on earth and due to gravity below and above the earth’s surface.

 

The chapter also tells us about escape speed and earth satellites. We will study the energy of an orbiting satellite and also geostationary and polar satellites. The chapter concludes by explaining the idea of weightlessness.

 

The chapter also tells us about the Earth’s satellites and how they are related to Kepler’s laws. We are also taught to calculate the energy of these orbiting satellites. It also gives a brief explanation of geostationary and polar satellites. The chapter concludes by telling us about the phenomenon of weightlessness. This principle tells us how an object in free fall is weightless or in zero gravity. You will learn how far the vertically fired satellites go before getting attracted by the Law of Gravitation. Get to know about the movements of the international space station around the earth and how the Earth’s gravitational force influences it. 

Points to remember.

1) Planets move around the Sun in elliptical orbits. 

2) The speed of movement of planets around the Sun in elliptical orbits       

3) The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.

 

NCERT Solutions for Class 11 Physics Chapter 8 (Download)

Physics is also an interesting subject but it might also be quite difficult to master it. One of the most analytical subjects in science is Physics as it deals with the different properties of matter and nature. The Physics NCERT Solutions Class 11 aims at making the subject and the concepts easier for each student as all students do not have the same capacity. The main motive of the solutions is to make understanding the subject easier for the students and make it seem less doubting for the students, keeping up with the syllabus and pressure of having good marks so some students are not able to do both. Having a solutions book also makes it easier for the students to go through before the exam as all the syllabus is combined in one place for the students to quickly go through. 

 

Benefits Of NCERT Solution For Class 11 Physics Chapter 8          

NCERT Solutions for Class 11 Physics Chapter 8 include interesting topics. This chapter will reveal the reasons behind the universal law of Gravitation. It is fascinating to know the various facts, and aspects about the force of gravitation on the earth apart from taking a glance at the functioning of satellites, space technology, etc. The topic of Gravitation is a complex one. With most of the topics being new, you find yourself unable to understand and remember the core level of the points of the chapter. This is where our NCERT solution for class 11 Physics Chapter 8 can help you. The complex concepts can break down into simple terms for your easy understanding of concepts. With the help of our NCERT Solutions, you will have a clear-cut understanding of the formula, concepts, and laws related to gravitation. So, without a doubt start reading our NCERT solutions.

 

NCERT Solutions for Class 11 Physics Chapter 8 will also give a detailed explanation of the universal Law of Gravitation and vital laws proposed by Kepler. It provides you with detailed solutions to questions based on escape velocity, gains in momentum due to gravity, and more. Acceleration due to gravity increases with increased altitude. The first exercise includes theory questions, multiple-choice questions, and numerical-type questions on the topics of gravity, tidal effect of sun and moon, orbital size, gravitational intensity, comet orbits, speed of the projectile, equilibrium, etc. The second exercise includes questions on topics like geostationary satellites and related space technology topics.  

 

Related Questions

The chapter is based on Gravitation. It’s critical to understand that gravity and gravitation are not similar. 

 

What is Gravity? 

Gravitation is the force acting between two bodies and gravity is a force that pulls a body to the earth’s centre. The NCERT solution for class 11 Physics Chapter 8 gives a brief explanation of three vital laws proposed by Kepler and the universal Law of Gravitation. The chapter begins by elaborating on Kepler’s laws before moving to the universal Law of Gravitation. 

 

Which are the three laws explained in the NCERT solutions Chapter 8 of Physics Class 11 ?

The chapter begins by elaborating on Kepler’s laws before moving on to the universal law of gravitation. We will also read about the gravitational constant and its equations. And about increasing speed due to gravity on earth and due to gravity below and above the earth’s surface.

 

What does the second section of NCERT solutions Chapter 8 Physics Class 11 state?

The second section states the Universal Law of Gravitation, Gravitational Constant, what causes Acceleration, Acceleration due to Gravity of Earth, and how Gravitation works both above and below the surface of the earth.

FAQs (Frequently Asked Questions)

Yes, Extramarks provides NCERT solutions for class 11 Physics Chapter 8. The solution sets are well explained and narrated by expert teachers to make it convenient for students to understand and learn the concepts quickly.

There are many important topics that need to be covered while preparing for exams. We have listed some of them to let students not miss out on marks on it. 

  • Central and Conservative Force 
  • Gravitational force is considered to be the weakest force in nature. 
  • Applicable to every form and object no matter how big or small the size, shape or position be.
  • Newton’s third law is applicable to the gravitational force. 
  • Unlike electrostatic force, it is independent of the medium between particles.

NCERT solutions class 11 Physics Chapter 8 includes all the universal laws of gravitation that are necessary for students to gain an ample amount of knowledge and learning for further studies. It is proven in Newton’s law of gravitation that any particle of matter can be attracted to any other particle with a force that has a direct relation with the product of their masses and an inverse relation with the square of the distance between them. This topic helps students score good marks in Physics and make their preparations for further competitive exams more powerful and absolute. 

For students, it is important to read every topic of the chapter thoroughly to keep all the concepts clear. They can also use highlighters to mark important formulae or definitions that might hold importance from an exam perspective. Referring to those highlighted points before exams will be easy. In the end, they should refer to NCERT solutions offered by Extramarks. 

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