| Onsite Version |

 

 

 

Unit IV - Wave Phenomena

 

I. Introduction to Waves

 

 

Wave – a vibratory disturbance that travels through a material or space 

 

 

 

Ex) sound, water waves, light, microwaves, heat rays

A. Waves and Energy


1. Waves transfer energy from one place to another with no transfer of mass

 

2. Waves can be produced in two ways:

a. Vibration of particles

(requires a medium for transfer)

(mechanical wave)

 

SoundF_WL_Amp.mp4

Sound Waves And Their Sources

This movie is part of the collection: Prelinger Archives

Production Company: ERPI Classroom Films, Inc. Distributed by Encyclopedia Britannica
Audio/Visual: sound, B&W
Creative Commons license: Public Domain 

 

 

ex) sound, water wave, spring wave

 

 

Splash of a Water Drop
N. Carolina School of Science and Mathematics

 

 

 

 

b. Small changes in the strength of an electromagnetic field

(requires no medium for transfer)

 

ex) light, microwaves, x-rays

 

 

 

3d  Electromagnetic Wave # 1
David M. Harrison

3d  Electromagnetic Wave # 2
David M. Harrison

 

 


Radiology Centennial, Inc
copyrighted in 1993

 

How the human ear works - Biswajeet - India

Onsite  Version

 

 

 

 

 

 

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