JACB - 8 - Science :: Friction-An Essential Force

Go To: JACB-Sci-Grade 8

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• Course content
• Textbook
• Teaching learning resources

Course Content / Subtopic list:

1. Friction
2. Factors affecting friction
3. Spring balance
4. Causes of friction - nature of the surface , weight of the object , irregularities on surface
5. Static and sliding friction
6. Rolling friction
7. Fluid friction
8. Friction is useful and harmful

Expected Learning Outcome:

SWBAT-

1. Define friction
2. Explain the factors affecting friction
3. Explain the causes of friction
4. Define static , sliding , rolling and fluid friction
5. Explain the usefulness and harmfulness of friction

Hindi Medium

Hindi medium textbook

Lesson Plan

[Contributor - Renuka Sabnis]

Dear Volunteer,

Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.

https://drive.google.com/open?id=1OQI9Xdime314BPQE1Ch4UwzuC_YxHU63 (lesson Plan - English)

https://drive.google.com/open?id=1LCEByGuMYBpzmmxN7dNZyJCYwklTDfrr (PPT - Hindi)

You may use the content as it is or download and modify them to suit the students requirements.

If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.

The worksheets of the lesson can be accessed from the worksheet tab.

Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.

Videos

[Author - Kripa S]

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

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

https://www.youtube.com/watch?v=Tz96XD6kQSI (friction video 2)

[Contributor - Renuka sabnis]

Lesson Plan version 1.1 video

https://www.youtube.com/watch?v=EfsgPzFjp9I (Friction and types of friction)

Images

[Author - Anu Nived]

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)

[Contributor - Renuka Sabnis]

Lesson Plan version 1.1 Images

https://www.butterflyfields.com/wp-content/uploads/2016/03/Friction-500x383@2x.jpg (Mind map)

Activities

[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

Additional Aids

[Contributor - Renuka Sabnis]

Lesson Plan version 1.1 PPT

https://drive.google.com/open?id=1LCEByGuMYBpzmmxN7dNZyJCYwklTDfrr (PPT - Hindi)

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