Open App

NEET Exam > NEET Videos > Physics Class 11 > Work-Energy Theorem

Work-Energy Theorem Video Lecture | Physics Class 11 - NEET

FAQs on Work-Energy Theorem Video Lecture - Physics Class 11 - NEET

1. What is the Work-Energy Theorem?

Ans. The Work-Energy Theorem states that the work done on an object is equal to the change in its kinetic energy. This means that if you apply a force to an object and move it, the work done by that force will result in a change in the object's speed or direction, reflecting a change in its kinetic energy.

2. How do you calculate work done in the context of the Work-Energy Theorem?

Ans. Work is calculated as the product of the force applied to the object and the distance over which that force is applied, along with the cosine of the angle between the force and the direction of motion. The formula is W = F * d * cos(θ), where W is work, F is force, d is distance, and θ is the angle.

3. Can the Work-Energy Theorem be applied to systems involving friction?

Ans. Yes, the Work-Energy Theorem can be applied to systems involving friction. In this case, the work done by friction will be negative, as it opposes the motion. The total work done on the object will include the work done by all forces, including friction, and will still equate to the change in kinetic energy.

4. What are some real-life applications of the Work-Energy Theorem?

Ans. Real-life applications of the Work-Energy Theorem include understanding how vehicles accelerate or decelerate, analyzing the motion of roller coasters, calculating the energy used in lifting objects, and designing safety features in cars that absorb energy during collisions.

5. How does the Work-Energy Theorem relate to potential energy?

Ans. The Work-Energy Theorem relates to potential energy as it shows that work done against gravity or other forces can change an object's potential energy. For instance, when lifting an object, work is done against gravitational force, resulting in an increase in the object's gravitational potential energy, which can later be converted back to kinetic energy when the object falls.

About this Video

4.61/5 Rating

Sep 23, 2025 Last updated

Related Exams

NEET Grade 9 Grade 10 Grade 11 Grade 12 JEE

Video Description: Work-Energy Theorem for NEET 2025 is part of Physics Class 11 preparation. The notes and questions for Work-Energy Theorem have been prepared according to the NEET exam syllabus. Information about Work-Energy Theorem covers all important topics for NEET 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Work-Energy Theorem.

Introduction of Work-Energy Theorem in English is available as part of our Physics Class 11 for NEET & Work-Energy Theorem in Hindi for Physics Class 11 course. Download more important topics related with notes, lectures and mock test series for NEET Exam by signing up for free.

Description

Video Lecture & Questions for Work-Energy Theorem Video Lecture | Physics Class 11 - NEET - NEET full syllabus preparation | Free video for NEET exam to prepare for Physics Class 11.

Information about Work-Energy Theorem

Here you can find the meaning of Work-Energy Theorem defined & explained in the simplest way possible. Besides explaining types of Work-Energy Theorem theory, EduRev gives you an ample number of questions to practice Work-Energy Theorem tests, examples and also practice NEET tests.

	Physics Class 11 122 videos\|493 docs\|98 tests

Physics Class 11

122 videos|493 docs|98 tests

Join Course for Free

Explore Courses for NEET exam