Law Of Inertia or Newton’s First LawNewton’s First Law, also known as the Law of Inertia, states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. In other words, objects tend to keep doing what they’re already doing—whether that’s staying still or moving—unless something else causes them to change their state. This concept is foundational in understanding motion and forces in physics. | Science Of The Universe