Casos: 

• Lens Combination.

• Nuclear Chain Reaction

• Radioactive Decay

• Atwood Machine

• Simple Inclined Plane

• Inclined Plane

• Altres laboratoris:

  http://www.walter-fendt.de/ph14s/index.html
  http://jersey.uoregon.edu/vlab/
  http://www.sciencegems.com/physical2.html

You can move the lenses around on the optical bench with a simple mouse drag. When you switch on the light, you can see how the light rays trace through the lenses. Dragging the lenses, you can observe how the the location of the intersection point and with it the focal length changes

This applet simulates what happens in a nuclear chain reaction. Each green dot you see here represents a nucleus that spontaneously fissions, if a neutron hits it. An example for such a nucleus would be ²³⁶U. Once a nucleus fissions, its fission products will be represented by two red dots. In addition, it releases 3 more neutrons.

The control-room operators of the Kärnobyl nuclear power plant are telecommuting and are running the plant through the Web. However, the mean time between failure for the components of Kärnobyl is not great. Try to keep the reactor stable when component failures occur!

Demonstration of rates of decay in naturally occuring radioactive sequences.

Here you have an opportunity to play around with different masses for the Atwood machine.

Here you can explore the physics of the inclined plane. For the mass M, we show all forces, gavity and normal force, acting on it. As you cahnge the angle, you can see how the components of the forces change.

In this applet, we solve a very complicated inclined plane problem with friction. One mass rests on an inclined plane, and another one is connected to it via a rope that runs over a pulley (we neglect the fricition between pulley and rope, though).