Dynamics (physics)

Dynamics is a branch of physics that studies how things move. It helps us to understand why things like cars, balls, and planets move in certain ways. Dynamics is based on two main principles of physics: force and energy. Force is the push or pull on an object that causes it to speed up, slow down, or change direction. Energy is the ability to do work, like lifting a heavy object or making a car move. Dynamics helps us to figure out how forces and energy act together to cause things to move.