71,314 resources related to

Force

In physics, a force is any influence that causes a free body to undergo a change in speed, a change in direction, or a change in shape. Force can also be described by intuitive concepts such as a push or pull that can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e. , to accelerate, or which can cause a flexible object to deform. (Wikipedia.org)