|
School Spano |
 |
||
|
Function To study the precession motion. | |||
|
|||
|
Description Wooden model with a metal pit and a groove where we can wind the thread for the throwing. | |||
Menu
|
School University |
 |
||
|
Function To study the conservation of the angular momentum. | |||
|
|||
|
Description The apparatus is made of brass. A vertical pole fixed on a circular basis is part of the apparatus. The end of the pole is hollow in order to lay the rotating gyroscope on it. In this position the gyroscope will acquire a precession motion. | |||
|
School Spano |
|
||
|
Function To study the conservation of the angular momentum. | |||
| |||
|
Description This model is demountable and is applicable to a thread or to the rotary apparatus. Putting the heavy disk in a rapid rotation, the axis holds the initial direction, whatever the position of the apparatus. If we join a weight to the internal ring, the axis has a motion of precession and describes a conical surface. This experiment allows making references to the rotation of the terrestrial axis and to the precession of the equinoxes. If the gyroscope is applied to the rotary apparatus, we can verify the principles concerning the composition on the two rotations. | |||
|
School Spano |
|
||
|
Function To study all the pendulum laws. | |||
| |||
|
Description The pendulums have a double suspension to assure the invariability of the planes of oscillation. Disposing the threads so that the lengths of the pendulums are 1, 4, 9 dm, we measure the time needed to obtain respectively 30, 15, 10 oscillations and we find that it is the same for all. With pendulums of the same length and balls of different substances the law of the independence of the period from the mass and from the nature of the pendulum can be verified. | |||
|
School Spano |
|
||
|
Function To study the conservation of the mechanical energy. | |||
| |||
|
Description A well-balanced wheel is suspended by its axe to a frame of wood by two flexible threads. If the threads are wound regularly the axis of the wheel and we leave the wheel free, after falling with a uniformly accelerated motion, it comes back to always decreasing heights with a uniformly slowed motion. | |||
|
School Spano |
|
||
|
Function To study the conservation of mechanical energy. | |||
| |||
|
Description Two masses are placed at the ends of a bar that is welded perpendicularly to another. The better can rotate on a vertical axis. When the bar winds the spring is wound. When the bar is let free, we can see oscillations with transformation of elastic energy into kinetic energy and vice versa. | |||
