Working Instructions:
In this page you can preform a few different experiments with inclined planes.
You can choose the kind, the length and the angle of inclination of the inclined plane. On the specific plane you choose you can examine the motion of the ball on the plane, and its duration, as will be written on the watch.

If you choosed - up an inclined plane or down and up, press the angle button to choose the inclination of the plane. Then press `GO' to start each experiment.

The results will be written under the plane (for a fix inclination in the middle, for a fix distance on the left). After a number of experiments with various lengths a symbol of a graph will appear on the right corner, press it to see the graph of your experiments.

Conclusions:

The experiment on planes with a fix inclination and various lengths confirms Galileo's law of Fall; a ball descends a distance four times longer in time only twice longer. In other words the length a ball falls, is proportional to the square of its movement time. You could also observe that a ball falls faster when the inclination is bigger, and stop faster when it raises a plane with a bigger inclination. You could also see that at the horizontal plane the ball continues to move with its initial velocity according to the law of inertia.

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