高度线性增加的多米诺依次倾倒后能量的传递

摘要

近似认为多米诺之间相互碰撞系统的角动量守恒，并且在各多米诺倒下的过程中，由于每块多米诺绕其支点转过的角度很小，因此而忽略在此过程中相互的作用力所做的功。由于能量传递与各多米诺的转动角速度相关，故可以推出高度线性增加的多米诺倾倒后能量的传递情况。多次实验角速度的实验值都大于理论值，但是实验值与理论值随多米诺的序数增加下降趋势与幅度大致相同。%The angular momentum of domino collision system was conserved approximately .In the falling process of the dominoes ,the turn angle of each domino around the pivot was small ,the work of the interaction force could be ignored .The energy transfer among the dominoes whose height increased linearly could be obtained because the energy transfer could be associated with the rotation velocity of the dominos .Experimental results indicated that the angular velocity was greater than the theoretical value ,but the trend and range were roughly the same .