Class 8 Exam  >  Class 8 Videos  >  Science Class 8  >  What is Friction?

What is Friction? Video Lecture | Science Class 8

90 videos|273 docs|44 tests

Top Courses for Class 8

FAQs on What is Friction? Video Lecture - Science Class 8

1. What is friction?
Ans. Friction is a force that opposes the relative motion or tendency of motion between two surfaces in contact with each other.
2. What are the types of friction?
Ans. There are mainly four types of friction: static friction, sliding friction, rolling friction, and fluid friction.
3. What factors affect friction?
Ans. The factors that affect friction include the nature of the surfaces in contact, the roughness of the surfaces, the force pressing the surfaces together, and the presence of any lubricants.
4. How does friction affect motion?
Ans. Friction acts in the opposite direction to the applied force, slowing down or stopping the motion of objects. It can also cause objects to heat up due to the energy lost in overcoming friction.
5. How can friction be reduced?
Ans. Friction can be reduced by using lubricants, polishing or smoothing the surfaces, using wheels or ball bearings, and minimizing the force pressing the surfaces together.
90 videos|273 docs|44 tests
Explore Courses for Class 8 exam
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

pdf

,

practice quizzes

,

shortcuts and tricks

,

Important questions

,

past year papers

,

study material

,

What is Friction? Video Lecture | Science Class 8

,

Free

,

ppt

,

Exam

,

MCQs

,

Sample Paper

,

Semester Notes

,

What is Friction? Video Lecture | Science Class 8

,

mock tests for examination

,

video lectures

,

Extra Questions

,

Previous Year Questions with Solutions

,

Objective type Questions

,

What is Friction? Video Lecture | Science Class 8

,

Viva Questions

,

Summary

;