TNSB - 8 - Science :: Force and Pressure

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Go To: TNSB-Sci-Grade 8

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Course content
Textbook
Teaching learning resources

Course Content / Subtopic list:

Force
Pressure
Pressure exerted by air
Force and pressure in liquids
Surface tension
Viscous force
Friction
Types of friction
Advantages and Disadvantages of friction

Expected Learning Outcome:

SWBAT-

Define Force
Define Friction
Define the Viscosity
Differentiate thrust and pressure
Describe the characteristics of atmospheric and liquid pressure
Apply Pascal's law in day to day life

English Medium

English medium textbook

Tamil Medium

Tamil medium textbook

Lesson Plan

[Contributor - Nithya Vasu]

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=1x0Up7WEmwlFvPUxgXf4CEId9FfZZFfdr (Lesson Plan - English)

https://drive.google.com/open?id=1_wZlNlGAPdfYpS2lqp7lVihLOW42CEE_ (PPT - English)

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

[Contributor - Kripa S]

https://www.youtube.com/watch?v=9tg3csrFVJw&t=69s (English - Force and Pressure)

[Contributor - Nithya Vasu]

Lesson Plan version 1.1 videos

https://www.youtube.com/watch?v=FVLAyphuZOU (force, contact force and no contact force)

https://www.youtube.com/watch?v=nk35aGqJ-F8 (Contact forces)

https://www.youtube.com/watch?v=kUVZIRz7PKs (Contact forces)

https://www.youtube.com/watch?v=SybIX2nEn1E (non contact force)

https://www.youtube.com/watch?v=eTuiLNYz7JM (no contact force)

https://www.youtube.com/watch?v=zlLpKzPz84Q (Pressure)

https://www.youtube.com/watch?v=EkDhlzA-lwI (Story of invention of barometer)

https://www.youtube.com/watch?v=dx2P7i1GPaw (Pascals law)

https://www.youtube.com/watch?v=HwCgeFzrosw (pressure)

https://www.youtube.com/watch?v=Cvp6mLWbgaM (Pressure exerted by liquids)

Images

[Contributor - Anu Nived]

http://images.tutorvista.com/content/force-laws-motion/hitting-a-ball-apply-of-force.jpeg (state of motion)

http://speedendurance.com/wp-content/uploads/2013/04/Kim-Un-Guk-London-2012_thumb.jpg (muscular force)

http://idahoptv.org/sciencetrek/topics/gravity/images/tree_and_apple.png (gravitational force)

https://moodle.galenaparkisd.com/pluginfile.php/61816/course/section/19577/logo.jpg (magnetic force)

http://ketabfarsi.ir/wp-content/uploads/2013/02/electricite.jpg (electrostatic force)

http://eschooltoday.com/science/forces/images/frictional-force-illustration.jpg (friction)

http://www.ekshiksha.org.in/images_friction_VIII/figure_12.JPG (reducing friction)

[Contributor - Nithya Vasu]

Lesson Plan version 1.1 images

https://www.butterflyfields.com/resources/force-and-pressure-cbse-grade-8-science-concept-map/ (Concept Map)

https://www.butterflyfields.com/resources/friction-cbse-grade-8-science-concept-map/ (concept map)

Activities

[Contributor - Kripa S]

https://www.youtube.com/watch?v=X0CFftWG0rk (Pressure Magic)

[Contributor - Nithya Vasu]

Lesson Plan version 1.1 activities

1. Material required :2 magnets attraction, repulsion demonstrates magnetic force and a comb rubbed over hair attract bits of paper to demonstrate electrostatic forces.

2. Take an empty box, tie a string around it and pull the box slowly on a smooth surface of a floor. Do you feel any friction? Try pulling the same box on the different surfaces over the floor, such as a thick sheet of cloth, a sheet of coir mat, a sheet of rubber, a sheet of greasy paper and finally on a sand bed. What change do you observe in the magnitude of friction?.

Repeat the same activity using the heavily filled box. Observe the difference. Note down the reason for the differences.

Additional Aids

[Contributor - Gayathri Arun]

https://drive.google.com/open?id=1g20tBWjN3_F1AkUV1lbMderYGYvuL0hJ

[Contributor - Nithya Vasu]

Lesson plan version 1.1 PPT

https://drive.google.com/open?id=1_wZlNlGAPdfYpS2lqp7lVihLOW42CEE_

Transliteration

[Contributor - Gayathri Arun]

Term	Transliterated Term	Translated Term
motion	மோஷன்	இயக்கம்
direction	டிரெக்க்ஷன்	திசை
force	ஃபோ ர்ஸ்	விசை
object	ஆப்ஜெக்ட்	பொருள்
friction	ஃப் ரிக்ஷன்	உராய்வு
gravity	க்ராவிட்டி	புவிஈர்ப்பு
fluids	ஃப் லுயிட்	பாய்மம்
container	கன்டைனர்	அடைப்பான், கொள்கலன்
factors	பாக்டர்	காரணிகள்
advantage	அட்வான்டேஜ்	நன்மை, மேம்பாடு
disadvantage	டிஸ ட்வான்டேஜ்	குறைபாடு, பலனின்மை, நன்மையற்ற நிலை
surface	ஸர் ஃபேஸ்	மேற்பரப்பு