NTNUJAVA Virtual Physics Laboratory
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Knowledge and practice are one. ..."Wang Yang Ming (1472-1529, Chinese Philosopher) "
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Author Topic: illustrate refraction with dog running  (Read 5907 times)
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Fu-Kwun Hwang
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on: December 22, 2009, 10:14:49 pm » posted from:Taipei,T\'ai-pei,Taiwan

The velocity of wave changes when wave move from one media into another media.
For light: The index of refraction is defined as n=c/v, where c is the speed of light in vacuum, and v is the speed of light in media.

The following animation use many dogs running from one region into another region.
Due to the condition on the ground , dogy's speed is different when running from one region into another region.
It obeys Snell's Law n_1 \sin\theta_1 =n_2 \sin\theta_2.

You can use n_1,n_2 slider to change speed of running dogs and c1 to change it moving direction.

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
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Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
  • Please feel free to post your ideas about how to use the simulation for better teaching and learning.
  • Post questions to be asked to help students to think, to explore.
  • Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!


* dogyrunning_refraction.gif (5.17 KB, 575x567 - viewed 365 times.)
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