NCERT - 8 - Science :: Friction

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Go To: NCERT-Science-Grade 8


[Contributor - Anu Nived]

Objective: To teach the students about about friction and types of friction

Subtopics to be covered:

  1. Factors affecting friction
  2. How to increase and decrease friction
  3. Fluid friction

Learning Outcome:

  1. Students can relate friction with their day to day life (how ball bearings work, rubbing hands with soil, etc.)
  2. They know about the effects of friction

[Contributor - Rini Jose] (Hindi and English)

[Contributor - Kripa S]

(Source - Bodhaguru) (Hindi - force, energy and friction)

(Source -MakeMeGeniusIndia) (Hindi - friction video 1)

(Source -OLI - NSS, IITB) (Hindi - friction video 2)

[Contributor - Kripa S]

1. Make an inclined plane on a smooth floor, or on a table. You may use a wooden board supported by bricks, or books. Put a mark with a pen at any point on the inclined plane. Now let a pencil cell move down from this point. How far does it move on the table before coming to rest? Note down the distance. Now spread a piece of cloth over the table. Make sure that there are no wrinkles in the cloth. Try the activity again.


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