Amplitude, Time Period And Frequency Of A Vibration
Chapter Name : Sound |
Sub Topic Code : 101_08_13_05_01 |
Topic Name : Amplitude, Time Period And Frequency Of A Vibration |
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Sub Topic Name : Amplitude |
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Introduction
The loudness of voice or sound depends on a property called Amplitude. Greater the amplitude, greater is the loudness.
Pre-Requisites:
Introduction to Vibrations - To & Fro Motion
Activity:
Using a tone synthesizer observe sounds of different pitch and amplitude. Link given in interesting page
Real Life Question:
We can all shout but some of us might be louder and some less loud. Why?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Amplitude | The loudness of sound corresponds to the amplitude; Louder the sound, greater the amplitude |
| Frequency | The number of oscillations per second |
| Pitch | An attribute of sound associated with the frequency of the vibration. Frequency is directly proportional to the pitch |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
Volume control in all audio devices
Places to visit :
Children's Museum, Sound exhibit
Practical examples around us
| Examples | Explainations |
|---|---|
| Music player | We can vary the volume of the sound we hear by varying the amplitude of the sound waves given out. |