Class 9 Exam  >  Class 9 Notes  >  Science Class 9  >  Mindmap: Work and Energy

Mindmap: Work and Energy | Science Class 9 PDF Download

Mindmap: Work and Energy | Science Class 9

The document Mindmap: Work and Energy | Science Class 9 is a part of the Class 9 Course Science Class 9.
All you need of Class 9 at this link: Class 9
87 videos|369 docs|67 tests

Top Courses for Class 9

FAQs on Mindmap: Work and Energy - Science Class 9

1. What is work and energy?
Ans. Work is defined as the transfer of energy that occurs when a force is applied to an object and the object is displaced in the direction of the force. Energy, on the other hand, is the capacity of a system to do work or produce heat.
2. How is work calculated?
Ans. The work done on an object can be calculated by multiplying the force applied to the object by the displacement of the object in the direction of the force. Mathematically, work (W) is given by the equation W = F × d, where F is the force applied and d is the displacement.
3. What are the different forms of energy?
Ans. Energy can exist in various forms, including kinetic energy, potential energy, thermal energy, chemical energy, electrical energy, and nuclear energy. Kinetic energy is the energy of motion, while potential energy is the energy that an object possesses due to its position or condition.
4. How is power related to work and energy?
Ans. Power is the rate at which work is done or energy is transferred. It is calculated by dividing the work done or energy transferred by the time taken to do the work or transfer the energy. Mathematically, power (P) is given by the equation P = W/t, where W is the work done or energy transferred, and t is the time taken.
5. What are some real-life examples of work and energy?
Ans. There are numerous examples of work and energy in our daily lives. Some common examples include lifting objects, running, driving a car, using electrical appliances, and cooking. In all these instances, work is being done and energy is being transferred or transformed from one form to another.
87 videos|369 docs|67 tests
Download as PDF
Explore Courses for Class 9 exam

Top Courses for Class 9

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Mindmap: Work and Energy | Science Class 9

,

ppt

,

Extra Questions

,

practice quizzes

,

Viva Questions

,

Exam

,

study material

,

Mindmap: Work and Energy | Science Class 9

,

Previous Year Questions with Solutions

,

Summary

,

Free

,

Mindmap: Work and Energy | Science Class 9

,

shortcuts and tricks

,

pdf

,

Important questions

,

video lectures

,

Semester Notes

,

Sample Paper

,

mock tests for examination

,

Objective type Questions

,

past year papers

,

MCQs

;