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"Nothing in life is to be feared, it is only to be understood." ..."Marie Curie 1867-1934, Polish born French Physicist, Twice Nobel Prize Winner- Physics and Chemistry)"
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Author Topic: Energy conservation: potential/kinetic energy  (Read 23609 times)
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Fu-Kwun Hwang
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on: June 07, 2005, 03:56:56 pm »

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This applet simulate many particles slide down at different angle.


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lookang
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Reply #1 on: June 17, 2008, 02:12:34 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE

This applet simulate many particles slide down at different angle.


How does this show the concept of Energy conservation: potential/kinetic energy ?

with some explanation i should be able to make creative common it into something that schools can get students to explore themselves  Smiley

For your consideration  Wink
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Fu-Kwun Hwang
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Reply #2 on: June 17, 2008, 03:09:47 pm »

The blue curves show blue(i)=(1/2)m*vi2/(m*g), while black curves are black(i)=yi.
For each pair of curves, you will find blue(i)+black(i)=constant.
So it is corresponds to conservation of energy.
You can also draw curves for (1/2)m*vi2 and m*g*yi, and you will find the sum are the same for all the curves.

What I did was just change the unit to be (m*g). So I draw (1/2)m*vi2/(m*g) and yi-- vertical position of particle.
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