你在观看体育比赛时,是否想过体育运动与物理学也有着密切的关系呢?下面为你介绍几个最常见的用到物理学原理的运动现象.举重擦“白粉”在举重比赛中,运动员上场之前总要在手上擦些“白粉”.这些“白粉”是镁粉,擦过之后,可增大手与被握物的摩擦,减少运动中的失误. Have you ever noticed that physical exercise is closely related to physics when you are watching sports? Here are a few of the most common sports phenomena that use physics: weight lifting wipe “white powder” in the weightlifting competition In the athletes always have to rub the hands before the “white powder.” These “white powder ” is magnesium powder, after rubbed, you can increase the friction between the hand and the object being held to reduce errors in exercise.