Energy conservation: potential/kinetic energy

Fu-Kwun Hwang

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1 Energy conservation: potential/kinetic energy

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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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2 Re: Energy conservation: potential/kinetic energy

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

Quote from: Fu-Kwun Hwang on June 07, 2005, 03:56:56 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

For your consideration Wink


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Fu-Kwun Hwang

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3 Re: Energy conservation: potential/kinetic energy

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Reply #2 on: June 17, 2008, 03:09:47 pm »

The blue curves show blue(i)=(1/2)m*v_i²/(m*g), while black curves are black(i)=y_i.
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*v_i² and m*g*y_i, 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*v_i²/(m*g) and y_i-- vertical position of particle.


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