CBSE Class 8: Friction - Importance and Methods to Reduce It Videos | MethodstoIncreaseFriction

• what is frictional force
• What is friction and it types
• what is frictional force
• You have to shift a heavy box in the store room.Which method you will use to reduce your effort and why?
• How static friction work ?
• Q. Will force or friction come into play when a rain drop rolls down a glass window plane?
• why does rolling friction create lesser friction compared to the force created while sliding or dragging?
• how static friction is dieefernt than sliding friction?
• 1.Explain four method by which friction between two solids surface in contact can be reduced. 
•  Why is it difficult to light a matchstick by striking it on a smooth surface?

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