UPSC Exam > UPSC Videos > UPSC Physics Optional (Crash Course) > Angular momentum and total energy conservation of a body under central force
Angular momentum and total energy conservation of a body under central force Video Lecture | UPSC Physics Optional (Crash Course)
FAQs on Angular momentum and total energy conservation of a body under central force Video Lecture - UPSC Physics Optional (Crash Course)
| 1. What is angular momentum and how is it conserved in a body under central force? |  |
Ans. Angular momentum is the rotational equivalent of linear momentum and is defined as the product of the moment of inertia and angular velocity of a body. In a system under central force, the angular momentum is conserved when the net external torque acting on the body is zero. This conservation principle is known as the law of conservation of angular momentum.
| 2. How is total energy conserved in a body under central force? | |
Ans. Total energy is the sum of kinetic and potential energy of a body. In a system under central force, total energy is conserved when there is no external work done on the body. This conservation principle is known as the law of conservation of energy. The gravitational or electrostatic potential energy, in the case of central forces, contributes to the conservation of total energy.
| 3. What are some examples of central forces in nature? | |
Ans. Some examples of central forces in nature include gravitational forces between celestial bodies like planets and stars, electrostatic forces between charged particles, and nuclear forces between protons and neutrons in an atomic nucleus. These forces act along the line connecting the centers of mass of the interacting bodies.
| 4. How does the conservation of angular momentum affect the motion of a planet in orbit around a star? | |
Ans. The conservation of angular momentum in a planet-star system means that as the planet moves closer to the star in its orbit, its speed increases to maintain a constant angular momentum. Conversely, as the planet moves farther away from the star, its speed decreases. This principle explains why planets move faster when closer to the star and slower when farther away.
| 5. Can the conservation of total energy and angular momentum be violated in a system under central force? | |
Ans. In ideal conditions where there are no external torques or work done on the system, the conservation of total energy and angular momentum holds true. However, in real-world scenarios, factors like friction, air resistance, or other external forces can lead to a violation of these conservation principles. These external influences can cause a loss of energy or angular momentum in the system.
About this Video
Sep 23, 2025
Last updated
Related Exams
Video Description: Angular momentum and total energy conservation of a body under central force for UPSC 2025 is part of UPSC Physics Optional (Crash Course) preparation.
The notes and questions for Angular momentum and total energy conservation of a body under central force have been prepared according to the UPSC exam syllabus.
Information about Angular momentum and total energy conservation of a body under central force covers all important topics for UPSC 2025 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Angular momentum and total energy conservation of a body under central force.
Introduction of Angular momentum and total energy conservation of a body under central force in English is available as part of our UPSC Physics Optional (Crash Course) for UPSC & Angular momentum and total energy conservation of a body under central force in
Hindi for UPSC Physics Optional (Crash Course) course. Download more important topics related with notes, lectures and mock test series for
UPSC Exam by signing up for free.
Description
Video Lecture & Questions for Angular momentum and total energy conservation of a body under central force Video Lecture | UPSC Physics Optional (Crash Course) - UPSC full syllabus preparation | Free video for UPSC exam to prepare for UPSC Physics Optional (Crash Course).
Information about Angular momentum and total energy conservation of a body under central force
Here you can find the meaning of Angular momentum and total energy conservation of a body under central force defined & explained in the simplest way possible.
Besides explaining types of Angular momentum and total energy conservation of a body under central force theory, EduRev gives you an ample number of questions to practice Angular momentum and total energy conservation of a body under central force tests,
examples and also practice UPSC tests.
Related Searches
Semester Notes
,Free
,Angular momentum and total energy conservation of a body under central force Video Lecture | UPSC Physics Optional (Crash Course)
,shortcuts and tricks
,Previous Year Questions with Solutions
,Important questions
,Sample Paper
,Summary
,ppt
,study material
,Exam
,video lectures
,mock tests for examination
,MCQs
,practice quizzes
,Angular momentum and total energy conservation of a body under central force Video Lecture | UPSC Physics Optional (Crash Course)
,past year papers
,Extra Questions
,Viva Questions
,Angular momentum and total energy conservation of a body under central force Video Lecture | UPSC Physics Optional (Crash Course)
,Objective type Questions
;
Study Angular momentum and total energy conservation of a body under central force on the App
Students of UPSC can study Angular momentum and total energy conservation of a body under central force alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Angular momentum and total energy conservation of a body under central force,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Angular momentum and total energy conservation of a body under central force is prepared as per the latest UPSC syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup