Chapter 12 Class 8 - Friction

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In this chapter we will learn

• What is Friction

• What does Friction Depend upon?

• What is Static Friction, Sliding Friction and Rolling Friction

• Why is friction a necessary evil?

• How to reduce friction?

• How to increase Friction?

• What do we mean by Fluid Friction

• What is a spring balance?

• What are ball bearings?

   

• How do ball bearings reduce friction?

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