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Never underestimate others. Never overestimate oneself. ...Wisdom

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 Author Topic: Energy conservation: potential/kinetic energy  (Read 24680 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
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 « Embed this message 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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 « Embed this message Reply #1 on: June 17, 2008, 02:12:34 pm »

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

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Fu-Kwun Hwang
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 « Embed this message 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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Never underestimate others. Never overestimate oneself. ...Wisdom