Teaching aid for physics mechanics experiment in junior high school

The invention discloses a teaching aid for a physics mechanics experiment in junior high school, belongs to the technical field of teaching aids, and solves the problem that a hook of an existing device cannot move to cause the demonstration range of the mechanics experiment of the device. The teaching aid is characterized by comprising a substrate, a clamping mechanism, an upright post and a lever mechanism, wherein a clamping mechanism mounting seat is arranged above the substrate; the upright post is fixedly mounted at the middle position of the upper surface of the clamping mechanism mounting seat; the clamping mechanism is further arranged on the clamping mechanism mounting seat; a workbench is fixedly mounted at the top of the upright post; and the lever mechanism is mounted on the workbench. According to the teaching aid, a telescopic mechanism is arranged, so that the height of the lever mechanism can be conveniently adjusted by the telescopic mechanism, simultaneously, the telescopic mechanism furthe