With easy-to-understand examples, the Class 11 Physics Chapter 6 describes the terms ‘Energy,’ ‘Power,’ and ‘Work.’ An everyday understanding of work such as a farmer ploughing a field or a construction worker having to carry bricks is somewhere related to Physics. This chapter teaches students that the term “work” in physics has a specific and defined meaning.
NCERT Solutions for Class 11 Physics Chapter 6 – Work, Energy and Power
Class 12 is a critical time, and the year goes by so quickly that you will have little time to prepare thoroughly. As a result, it is best to begin the flow in Class 11. Also, if you want to have a successful career in the future, you must have a thorough understanding of the subjects you study in Class 11. To begin with, NCERT Solutions Class 11 is a fantastic start to the entire preparation process.
Chapter 6 of Physics for Class 11 will teach students that energy is defined as the capacity to perform work. The term ‘energy’ used in physics corresponds to work. In daily life, the word ‘power’ has a variety of connotations. This chapter’s goal is to help students understand the three physical quantities of work, energy, and power. Students can access NCERT Solutions Class 11 Physics Chapter 6 to grasp these concepts with ease.
<Download Link for NCERT Solutions for Class 11 Physics Chapter 6 – Work, Energy, and Power>
Access NCERT Solutions for Class 11 Physics Chapter 6 – Work Energy and Power
Solutions
NCERT Solutions of Class 11 Physics Chapter Work Energy and Power
Before starting your CBSE Class 11 Physics prep, familiarise yourself with the topics and subtopics of NCERT Class 11 Physics Chapter 6. Knowing the topics and sub-topics in this chapter will aid you in preparing for the exam properly.
The first two subtopics define the scalar product as well as work and kinetic energy. The first section of Work, Energy, and Power also includes the work-energy theorem, the concept of Kinetic Energy, Potential Energy, Mechanical Energy Conservation, and much more. Find the detailed sub-topic description below:
| Section Number |
Section Title |
| 6.1 |
Introduction |
| 6.2 |
Notions of Work and Kinetic Energy: The Work-Energy Theorem |
| 6.3 |
Work |
| 6.4 |
Kinetic Energy |
| 6.5 |
Work Done by a Variable Force |
| 6.6 |
The Work-Energy Theorem for a Variable Force |
| 6.7 |
The Concept of Potential Energy |
| 6.8 |
The Conservation of Mechanical Energy |
| 6.9 |
The Potential Energy of a Spring |
| 6.10 |
Various Forms of Energy: The Law of Conservation of Energy |
| 6.11 |
Power |
| 6.12 |
Collisions |
6.1 Introduction
The term “work” is used in Physics to describe the process of transferring energy from one object or system to another, or of converting energy from one form to another.
6.2 Notions of Work and Kinetic Energy: The Work-Energy Theorem
The term “work” is frequently used in everyday life, and we understand that it refers to the act of doing something. For example, by reading this article, you are improving your understanding of Physics right now! Physics, on the other hand, may disagree. The Work-energy Theorem explains why this Physics of No Work exists! The concepts of kinetic energy, work, and kinetic energy are discussed in this topic. The topic also covers the work-energy theorem and how to prove it.
6.3 Work
We use terms like overworked and hard worker to describe a person’s effort. But what does work mean, and how do we measure it? In many ways, the scientific definition of work differs from its everyday meaning. In physics, the definition of work reveals its connection to energy. Students will learn more about this in this section
6.4 Kinetic Energy
We’ve all heard tales of great explorers in their sailboats sailing the unknown seas. That was back when there was no such thing as an engine. They could only move their massive ships with the help of the wind. What causes such objects to move when the wind blows? The answer can be found in the principles of kinetic energy.
6.5 Work Done by a Variable Force
It’s interesting to note that most of the forces we encounter on a daily basis are variable in nature, as defined by the term variable force. If there is displacement in the system when a force is applied in the direction of the force, the force is said to perform work on the system. Integration is required to calculate the work done in the case of a variable force.
6.6 The Work-Energy Theorem for a Variable Force
The ideal scenario is a constant force, but the forces that occur all around us are all variable. For all forces, the work-energy theorem holds true. Thus, even with a variable force, the work-energy theorem can be proved.
6.7 The Concept of Potential Energy
Potential energy is the amount of energy contained in an object as a result of its position in relation to a zero position.
6.8 The Conservation of Mechanical Energy
One of the most fundamental principles of classical physics, the law of mechanical energy conservation, is at the heart of the complex motion behind a mechanical automatic watch. The conservation of potential energy and its proof are discussed in this topic.
6.9 Potential Energy of a Spring
Have you ever wondered how a spring returns to its original shape no matter how much force you apply to compress or stretch it? Why is it necessary to apply additional force to change the position of a spring? The key is the potential energy of the spring that has been stored. The topic explains a spring’s potential energy.
6.10: Various Forms of Energy: The Law of Conservation of Energy
Energy is simply an object’s ability to perform work. Most events and processes in the Universe involve a change in energy. Conservation is practised in all of these types of energies. The amount of energy in our universe is fixed. Energy can neither be created nor destroyed, but it can take on various forms. The law of conservation of motion, as well as different types of energy, are covered in this topic.
6.11 Power
Power is a scalar quantity, just like work. The symbol for it is P, and the SI unit is watt (W). The steam engine was invented by Scottish scientist James Watt, who is credited with its invention. Furthermore, this topic emphasises power in terms of force and velocity, as well as power, horsepower, and kilowatt-hour.
6.12 Collisions
Collision is defined as two objects colliding for a very brief period of time. Collisions and collision types are discussed in this topic.
If both the systems’ linear momentum and kinetic energy are conserved, a collision between two particles or bodies is said to be elastic. Collisions between atomic particles, atoms, marble balls, and billiard balls are just a few examples.
The collision is said to be inelastic when the system’s linear momentum is conserved but not its kinetic energy. When we drop a ball of wet putty on the floor, the impact is inelastic.
NCERT Solutions for Class 11 Physics Chapter Download
On Extramarks, you will find all of the questions and answers from NCERT Book of Class 11 Science Physics Chapter 6 for free. Experts prepare all NCERT Solutions Class 11 Physics Chapter 6, and they are 100 per cent accurate.
Benefits of NCERT Solutions for Class 11 Physics Chapter 6
- Physics NCERT Solutions are provided in a step-by-step format. Work, Energy, and Power in Class 11 provides step-by-step solutions to complex problems that are required for class tests and final exams. It includes all of the exercises in your book.
- Helps students improve their analytical and problem-solving skills in Grade 11 Physics.
- Our team of experts has prepared NCERT Solutions for Class 11 Physics Chapter 6 in accordance with all CBSE instructions. All of the answers are custom-made to cover the entire topic, explaining all of the key concepts and including illustrations as needed, delivering quality answers for all questions.
- Assists students in identifying weak topics so that they can devote more time to improving and reinforcing concepts in various chapters.
- You can use the NCERT solutions for Work, Energy, and Power in Class 11 for free.
- It takes lesser time to prepare for your exams while using these solutions. By providing well-structured answers, Physics Class 11 Chapter 6 helps you grasp complex topics like power, collisions, and potential energy more quickly. Therefore, students improve their speed and accuracy when answering questions at the end of the chapter.
- Even for competitive exams, the extensive Class 11 Physics Chapter 6 NCERT Solutions study material is valid and extremely useful.