Class 8 Exam > Class 8 Videos > Science Class 8 > Contact Forces and its Types (part -1)
Contact Forces and its Types (part -1) Video Lecture | Science Class 8
FAQs on Contact Forces and its Types (part -1) Video Lecture - Science Class 8
| 1. What are contact forces? |  |
Ans. Contact forces are forces that act when two objects come into physical contact with each other. These forces can either push or pull objects and are transmitted through direct contact between the surfaces of the objects.
| 2. What are the types of contact forces? | |
Ans. There are several types of contact forces. Some common ones include:
1. Frictional force: This force opposes the motion of an object and occurs when two surfaces rub against each other.
2. Normal force: This force acts perpendicular to the surface of an object and prevents it from sinking into another object when they are in contact.
3. Tension force: This force is exerted by a string, rope, or cable when it is pulled taut.
4. Applied force: This force is exerted by a person or an object when it pushes or pulls another object.
5. Air resistance force: This force opposes the motion of an object through the air and is experienced by objects moving through a fluid medium.
| 3. How does frictional force work? | |
Ans. Frictional force occurs when two surfaces are in contact and move against each other. It acts in the opposite direction to the motion of the object and opposes its movement. Frictional force depends on factors such as the roughness of the surfaces and the weight of the object. It can be increased by increasing the force pressing the surfaces together or by increasing the roughness of the surfaces.
| 4. What is the normal force? | |
Ans. The normal force is the force exerted by a surface to support the weight of an object resting on it. It acts perpendicular to the surface and prevents the object from sinking into the surface. The magnitude of the normal force is equal to the weight of the object when it is at rest or in equilibrium.
| 5. How is tension force applied? | |
Ans. Tension force is applied by a string, rope, or cable when it is pulled taut. It acts along the direction of the string and is transmitted through the string to the objects it is attached to. Tension force can be used to lift objects, hold objects in place, or transmit forces in various mechanical systems.
About this Video
2.3K Views
4.81/5
Rating
Sep 22, 2025
Last updated
Video Description: Contact Forces and its Types (part -1) for Class 8 2025 is part of Science Class 8 preparation.
The notes and questions for Contact Forces and its Types (part -1) have been prepared according to the Class 8 exam syllabus.
Information about Contact Forces and its Types (part -1) covers all important topics for Class 8 2025 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Contact Forces and its Types (part -1).
Introduction of Contact Forces and its Types (part -1) in English is available as part of our Science Class 8 for Class 8 & Contact Forces and its Types (part -1) in
Hindi for Science Class 8 course. Download more important topics related with notes, lectures and mock test series for
Class 8 Exam by signing up for free.
Description
Video Lecture & Questions for Contact Forces and its Types (part -1) Video Lecture | Science Class 8 - Class 8 full syllabus preparation | Free video for Class 8 exam to prepare for Science Class 8.
Information about Contact Forces and its Types (part -1)
Here you can find the meaning of Contact Forces and its Types (part -1) defined & explained in the simplest way possible.
Besides explaining types of Contact Forces and its Types (part -1) theory, EduRev gives you an ample number of questions to practice Contact Forces and its Types (part -1) tests,
examples and also practice Class 8 tests.
Related Searches
Viva Questions
,video lectures
,Semester Notes
,Objective type Questions
,Free
,Summary
,Contact Forces and its Types (part -1) Video Lecture | Science Class 8
,mock tests for examination
,Previous Year Questions with Solutions
,Sample Paper
,MCQs
,past year papers
,study material
,practice quizzes
,ppt
,Contact Forces and its Types (part -1) Video Lecture | Science Class 8
,Important questions
,shortcuts and tricks
,Exam
,Contact Forces and its Types (part -1) Video Lecture | Science Class 8
,Extra Questions
;
Study Contact Forces and its Types (part -1) on the App
Students of Class 8 can study Contact Forces and its Types (part -1) alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Contact Forces and its Types (part -1),
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Contact Forces and its Types (part -1) is prepared as per the latest Class 8 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup