Experimental device for exploring conservation quantity in collision

The invention discloses an experimental device for exploring conservative quantity in collision, a top plate is arranged at the top of a support, a left group of grooves and a right group of grooves are formed in the top plate, and each group of grooves can be provided with a pendulum ball group. Each pendulum ball group is composed of a connecting plate, a cycloid, an adjustable screw and a pendulum ball, the pendulum ball is connected with three cycloids, two of the three cycloids penetrate through penetrating holes in the two ends of the connecting plate respectively, the middle vertical cycloid is tightly attached to the front face of the speed reticle plate, the effect is to eliminate the parallax error of reading, and the three-line pendulum is integrally formed. During installation, the protrusions are matched with the grooves. The speed reticle is arranged at the central position of the device, and the corresponding speeds before and after collision of the pendulum ball are read according to the scale