Friction

Understanding Friction in a simple way

OBJECTIVE

To create a video representation on friction that will help students to understand the concept of friction, its types, and its applications in real-life scenarios.

ANIMATION

QUIZ

1. What is friction?

a) A force that attracts objects to each other b) A force that opposes the motion of objects that are in contact with each other c) A force that causes objects to move in a straight line d) A force that causes objects to spin around

2. What is rolling friction?

a) The force that opposes the initiation of motion between two surfaces b) The force that opposes the motion of two surfaces that are in contact with each other and in motion relative to each other c) The force that opposes the rolling motion of a wheel or a ball d) The force that opposes the motion of an object through a fluid

3. Which of the following factors affect the amount of friction between two surfaces?

a) The nature of the surfaces b) The force pressing the surfaces together c) The presence of lubricants d) All of the above

4. How does the nature of the surfaces affect the amount of friction?

a) The roughness and texture of the surfaces can affect the amount of friction between them b) The greater the force pressing the surfaces together, the greater the amount of friction between them c) Lubricants can reduce the amount of friction between two surfaces d) None of the above

5. How does the presence of lubricants affect the amount of friction?

a) Lubricants can reduce the amount of friction between two surfaces b) The greater the force pressing the surfaces together, the greater the amount of friction between them c) The roughness and texture of the surfaces can affect the amount of friction between them d) None of the above

Understanding Friction in a simple way

OBJECTIVE

ANIMATION

QUIZ

CREATORS

Somya

(Project Associate, Team Jigyasa)

CSIR-NPL

Presented by CSIR NPL