Concept Map Of Work Energy And Power Class 9

It covers all the important concepts of work done energy and power.

Concept map of work energy and power class 9.

Cbse class 9 science notes chapter 11 work power and energy. To practise concepts in the syllabus. Power is defined as work done per unit time. Mathematically energy mass x gravity x.

The capacity of doing work is called energy. Mathematically work done force distance. When a force acts on an object and the object shows displacement the force has done work on the object. 1 hp 735 7 watts.

Here we have given ncert class 9 science notes chapter 11 work power and energy. Power is also expressed in units of horsepower hp. It can also be defined as the rate of change of energy. It will help the students of class 9th to clear their basic concepts of physics and become confident in the subject.

Work energy and power is a vast topic that requires a lot of hard work and the application questions of this concept can be very challenging. In this article we will learn all about the concept of work power and energy. Revise some of the crucial concepts in science by practising with topperlearning s ncert solutions for cbse class 9 physics chapter 11 work and energy. Two conditions need to be satisfied for work to be done.

This course covers work and energy chapter of class 9 science. In these notes a brief and simple explanation of all important topics is given which will help students make an. If a machine does 1 000 joules of work in 1 second then its power is 1 000 watts or 1 kilowatt. Work and energy full chapter class 9 cbse with all formulas numerical problems work power energy kinetic energy potential energy total energy law.

Those students who refer the ncert solutions regularly are benefited with the comprehensive methodology of the topic and also with the detailed step by step procedure which will fetch them good marks in their examinations. Work is said to be done when the force is applied on a body and the body covers a certain distance. Ncert solutions for class 9 science chapter 11 work and energy helps you lay a good foundation for your exam preparation. In this article you will get cbse class 9 science chapter notes on work and energy.

Work done is generally referred in relation to the force applied while energy is used in reference to other factors such as heat. It will also help people preparing for medical engineering entrance exam and other government examinations. Rate of doing work is called power. Go through the model answers for numericals on work done kinetic energy power etc.