Energy conservation: potential/kinetic energy

[Fu-Kwun Hwang]

Registed user can get files related to this applet for offline access.
Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
If java program did not show up, please download and install latest Java RUN TIME

This applet simulate many particles slide down at different angle.

Registed user can get files related to this applet for offline access.
Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
If java program did not show up, please download and install latest Java RUN TIME

[lookang]

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 

[Fu-Kwun Hwang]

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.