APSB - 8 - Science :: Friction

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[Author - Anu Nived]

Objective: To educate the children about friction and types of friction

Subtopics to be covered:

- Factors affecting friction

- How to increase and decrease friction

- Types of friction

Learning Outcome:

- Students know about friction and factors affecting them

- They can relate friction with their day to day life (how ball baerings work, rubbing hands, etc.)

- They know about fluid friction and drag

- They can classify types of friction

[Author - Kripa S]

http://scert.telangana.gov.in/sites/default/files/publication/ebooks/8TM_PHY.pdf#page=31 (Telangana Board) (Telugu Medium)

https://drive.google.com/folderview?id=0B0WiysvR2DOlVDVZYnlsNzlVVk0&usp=sharing (AP Board) (Telugu Medium)

http://scert.telangana.gov.in/sites/default/files/publication/ebooks/8EM_PHY.pdf#page=31 (Telangana Board) (English Medium)

http://apscert.gov.in/ebookapp/GeneratePdf (AP Board) (English Medium)

[Author - Hupesh Seemakurthy]

https://drive.google.com/open?id=0B4m07xnDF8JpdEF6SjVMOFctWTg (Friction)

[Author - Kripa S]

http://study.com/cimages/multimages/16/rsz_matches-637771_640.png (friction)

https://s-media-cache-ak0.pinimg.com/736x/85/bb/2f/85bb2f70d04627b2b504ce0d4c410358.jpg (static friction)

http://www.hollywoodshoerepair.com/images/beforeAfter_fullSole02.jpg (reduce friction)

http://www.ekshiksha.org.in/images_friction_VIII/figure_17.JPG (fluid friction)

[Author - 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

[Author - Praveen Jayaram]

https://drive.google.com/open?id=0BzNF2YyqQxJ-WUhsSXdZXzE1UGs

[Author - Praveen Jayaram]

https://drive.google.com/open?id=0BzNF2YyqQxJ-YVk3WlVScFRiX2M

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