A disk, which can unroll with its axis
on two cords, moves in the gravitational
field. Potential energy, energy
of translation and energy of rotation
are converted into one another and
are determined as a function of time.
Measurement of the time
t
required for the distance
s
between start to the light barrier
The experimental set up is shown in Fig. 1 and Fig. 2. First assemble the frame with the light barrierusing the stand material. Then attach the rod of the Maxwell wheel, in such a way, that the wheel axleis level and the strings are even on both sides. One can reach this best by some up and down movementsbefore starting the experiment. The release switch should be adjusted in such a way that the disk does