NCERT - 8 - Science :: Friction

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Go To: NCERT-Science-Grade 8

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[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 - Kripa S]

(Source - Bodhaguru) https://www.youtube.com/watch?v=kvbOmoNXQ44 (Hindi - force, energy and friction)

(Source -MakeMeGeniusIndia ) https://www.youtube.com/watch?v=q5FEuw6mB8s (Hindi - friction video 1)

(Source -OLI - NSS, IITB ) https://www.youtube.com/watch?v=Tz96XD6kQSI (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.

2. http://www.arvindguptatoys.com/toys/books.html


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