Q&A/Class 8/Science

What are the various types of friction? Explain.

Class 8CBSEScienceChapter: Friction
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There are mainly three types of friction:
  • Static friction: The friction existing between a stationary object and the surface on which it’s resting is called static friction. This type of friction is more powerful than others. We need a lot of energy to overcome such type of friction.
  • Sliding friction: The friction between the two surfaces in contact when one of them just slides, over the other is called sliding friction. It is also known as kinetic friction. It is less than static friction.
  • Rolling friction: When one body rolls over the surface of another body, the resistance of its motion is called rolling friction. Rolling friction is less than sliding friction. It is thus the least friction of three types of friction, i.e., Static friction > Sliding friction > Rolling friction.

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