JACB - 8 - Science :: Force and Pressure

From evidyaloka

Jump to: navigation, search

Go To: JACB-Sci-Grade 8

[edit]

Course content
Textbook
Teaching learning resources

Course Content / Subtopic list:

Push and Pull
Force ,Uses of force ,Net Force, effects of Force
Types of force - Muscular force , Frictional force , magnetic , Gravitational and electrostatic force , contact and non - contact forces , Balanced and unbalanced forces
Unit of force
Pressure , Distribution of Pressure, pressure in fluids , upthrust , atmospheric Pressure

Expected Learning Outcome:

SWBAT-

Identify pull and push
Define force
Differentiate between Different types of forces - Muscular , Frictional , Magnetic , Gravitational and electrostatic force
Distinguish between contact and non - contact force
Define pressure
Explain distribution of pressure and pressure in fluids

Hindi Medium

Hindi medium textbook

Lesson Plan

[Contributor - Prakhar Sankrityayan]

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=1Bf1gkbRNaaQAIrj5tYKgzml-5azkF560 (Lesson Plan - English)

https://drive.google.com/open?id=1TNFBvrL0rUmyTEUdHxiQMsoPd4MkDCm1 (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

[Author - Kripa S]

https://www.youtube.com/watch?v=yRiQWCB0834 ( What is Force and Gravitional Force )

[Contributor - Prakhar Sankrityayan]

Lesson Plan version 1.1 videos

https://www.youtube.com/watch?v=CpN0sXKY4pA

https://www.youtube.com/watch?v=WXtlT2-IaLE

https://www.youtube.com/watch?v=dTgMb2HEN1E (Type of forces)

https://www.youtube.com/watch?v=uoKo3DbfYZk (basic concept of force)

https://www.youtube.com/watch?v=9tg3csrFVJw

https://www.youtube.com/watch?v=o9lwghOHL5E (Atmospheric pressure)

https://www.youtube.com/watch?v=2tBWfqKA0Tk

Images

[Author - Anu Nived]

https://carinadacp.files.wordpress.com/2011/09/photo-on-2011-09-18-at-12-10.jpg (electrostatic force)

https://s3.amazonaws.com/user-media.venngage.com/149971-a97dac7f8ef89345796c56fdb5784832.jpg (gravitional force)

https://userscontent2.emaze.com/images/752c3534-8018-48ed-b05e-ebcb79817120/f2875a22bd744363d69241ad0d6ada69.jpg (application of pressure)

https://farm8.staticflickr.com/7474/15360038244_8ac13f6fff_o.jpg (muscular force)

Activities

[Author - Kripa S]

1. https://www.youtube.com/watch?v=Bxe43E214eI (Pressure Magic)

2. Divide the class into two groups and play the game 'tug of war'. We need a big rope. One end of the rope will be towards one team and other end to the other team. Let the two teams pull the rope and pull the other team towards them. The team that applues more force and pulls the team wins the game.

[Contributor - Prakhar Sankrityayan]

1. Write some scenarios on the board (such as a man pushing a box, a crane lifting metal scarp with the help of a magnet and etc), and ask the students to come up to the board and identify the type of force and classify it as contact or non-contact.

2. Penetrate a piece of paper with the pointed end of a pencil and then with the blunt part of the pencil. Observe when more efforts are required.

3. Give each kid a balloon, and ask them to burst it using their finger, once they fail ask they to pierce with the pen’s pointed nib. Thus showing the relation between contact area and pressure.

4. Instruct to fill the syringes about half with water.

• Put the hollow rubber tube from both sides at nozzles of the syringes as shown in the figure.

• Ask the students to push the plunger of one syringe inward, the pressure exerted through it will push the plunger of other syringe outward direction.

• Now as a student to push both the plungers inward with the same force. There will be no movement in the plungers because the amount of pressure on both sides is equal