Question

7. Long answer type questions.

(a) Explain the cause of friction. Give an example.​

Answer 1

Answer:

Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.

Explanation:

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Answer 2

Answer:

Friction Class 8 Science Chapter 12 as per NCERT Book used in CBSE and other Schools. The lesson covers the complete explanation of class 8 Chapter 12 Friction. Topics covered are friction, causes of friction, factors affecting friction, methods to reduce friction, advantages and disadvantages of friction, fluids and fluid drag. The lesson covers all important questions based on crop production and management. NCERT solutions to book questions have also been provided for convenience of the students

Example:-