MHSB - 7 - Science :: Sound- Production of Sound

MSCERT-Sci-Grade 7

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Course content
Textbook
Teaching learning resources

Course Content / Subtopic list:

Oscillator, oscillation and oscillatory motion
Time period of oscillation and frequency
High and low pitch of sound
Intensity of sound - sound level
Audible sound
Infrasonic sound
Ultrasonic sound

English Medium

English medium textbook

Marathi Medium

Marathi medium textbook

Lesson Plan

[Contributor - Ankita Srivastava]

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=1zWIib_54DKoImbfRESCEySICsaM2tH7u (Lesson Plan - English)

https://drive.google.com/open?id=1YYCdn6Zo1mDs4-g7IJ3ss2mB-ZnwiaMI (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 - Ankita Srivastava]

Lesson Plan version 1.1 videos

https://www.youtube.com/watch?v=wI3ZJwkD-Fc (Sound produced through vibration)

https://www.youtube.com/watch?v=lGYUVEj05yU (Amplitude, time period, frequency)

https://www.youtube.com/watch?v=CY04lXo9brE (Amplitude , Time period Frequency)

https://www.youtube.com/watch?v=uvcvM5ujWJk (Characteristics of sound)

Images

[Contributor - Kripa S]

http://www.ekshiksha.org.in/images_sound_IX/figure_1.JPG (sound produced by tuning fork) http://aven.amritalearning.com/userfiles/1/image/musicq22.jpg (some musical instruments)

Activities

[Contributor - Kripa S]

1. https://www.youtube.com/watch?v=BoSh_ei7KoI (straw flute) 2. Make a list of sounds you hear in your surroundings. 3. Take a rubber band. Put it around the longer side of a pencil box. Insert two pencils between the box and the stretched rubber. Now, pluck the rubber band somewhere in the middle. Do you hear any sound? Does the band vibrate? 3. Take a metal dish. Pour water in it. Strike it at its edge by a spoon. Do you hear a sound? Again strike the plate and then touch it. Can you feel the dish vibrating? Strike the dish again. Look at the surface of water. Do you see any waves there? Now hold the dish. What change do you observe on the surface of water? Can you explain the change? Is there a hint to connect sound with the vibrations of a body? 4. https://www.youtube.com/watch?v=m25z5qWtNsw (roaring bottle)

[COntributor - Ankita Srivastava]

Lesson Plan version 1.1 activities

1. Take a scale and hold its one end firmly on the table with one hand. Tap the free end of the scale with the other hand. Observe.

2. Take a simple pendulum and record its time period and frequency. Keep changing its length and record the observations.