Sound Needs A Medium For Propagation
Chapter Name : Sound |
Sub Topic Code : 101_08_13_03_01 |
Topic Name : Sound Needs A Medium For Propagation |
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Sub Topic Name : Sound Needs Medium |
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Introduction
Vibrations need to occur - to result in sound?
Pre-Requisites:
introduction to sound
Activity:
Describe the loudness od sound for the following cases: 1. Try placing your ear on a table, and with your hand bang on the table. 2. Now, place your ear in water and ring a bell in water.
Real Life Question:
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Material Medium | The material through which the sound travels (in general, a wave travels) |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
Communication Industry - For transmission of sound there needs to be a medium
Places to visit :
Children's Science Museum - Sound Exhibit
Practical examples around us
| Examples | Explainations |
|---|---|
| Toy Telephone (Two cups attached with string) | There is a medium for the sound to travel |
What you learn in Theory:
Sound needs a medium for propagation
What you learn in Practice:
*Activities to demonstrate the same (Elaborate / Explain)