Rotating Marbles Angular Momentum Demo

This gives the mass a larger energy by a factor.

Rotating marbles angular momentum demo.

When they first enter the funnel the marbles rotate slowly around the funnel. When ryan spins a bike wheel nothing crazy happens. 45 7 july 1977 p. Http www dlt ncssm edu ncssm a publicly funded hig.

Disc 7 1 38 sec back. The audience will see the increase and decrease in the rotational speed of the stool body system a convincing demonstration of the. This illustrates an important conservation. As marbles descend in a funnel their angular speed increases illustrating conservation of angular momentum.

Conservation of angular momentum means that the man turns in the opposite direction from the spinning bicycle wheel. The rotating stool and dumbbells demonstration shows conservation of angular momentum as a student sits on a rotating stool and moves weights in each hand toward and away from his or her body. The man is standing on a rotation platform. Prigo and melissa reading quantitative angular momentum experiment on the rotating chair ajp vol.

Pivoted falling stick. A mass m is rotating horizontally at a given velocity v at a given radius r. M 764 bike wheel mass in ext d hands dick and rae physics demo notebook. Tion of angular momentum.

As the marbles approach the bottom of the funnel their radius of rotation decreases. Marbles and funnel script demo 07 01. But something weird happens when he flips it over watch and learn as he shows and explains why. Part of ncssm online physics collection.

This video deals with angular inertia and rotational velocity. At the new radius the velocity is a factor of two faster. The mass has energy of j 1 2 m v 2 now let the radius gradually reduce by one half. A puzzle concerning the conservation of angular momentum.

Direction of change of angular momentum about pivot is the same as direction of angular momentum about pivot. If the wheel is suddenly inverted the turntable and demonstrator acquire an angular momentum in the opposite direction such that the original angular momentum of the system is conserved. On rotating platform odd tables find torque about the cm in terms of f a f b and d. Mt 2 freier and anderson a demonstration handbook for physics.

The angular momentum vector is also in the vertical direction whether it is up or down depends on how the wheel is spinning.