Trajectories for kepler motion

[Fu-Kwun Hwang]

The applet shows trajectories for 12 particles with different cases:
1. All starts at the same location, but different initial velocity
2. All starts with the same velocity, but from different location (r)
3. All starts with the same angular momentumm (r*v=constant), but from different location (r)

You can drag each moving particles to any location with mouse drag and drop.
The velocity of each particle (red arrow) can be changed,too!

Embed a running copy of this simulation
<applet code='users.ntnu.fkh.keplerorbit_pkg.keplerorbitApplet.class' archive='http://www.phy.ntnu.edu.tw/ntnujava/ejsuser/2/ejs_keplerorbit.jar' name='keplerorbit5792' id='keplerorbit5792' width='694' height='668' mayscript=true><param name='draggable' value='true'></applet>
Embed a running copy link(show simulation in a popuped window)
<a href='http://www.phy.ntnu.edu.tw/ntnujava/msg.php?smfejs=5792' target='smfejs'>Run simulation</a>

Full screen applet or 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!