equilibrium - a state where all the forces acting on an object are balanced, resulting in no net force and therefore no change in the object's motion;, inertia - the resistance an object has to a change in its state of motion; directly proportional to mass, Newton’s First Law of Motion - he law of inertia, states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and direction unless acted upon by an external force, tension - the force that is transmitted through a string, rope, wire, or other similar object when it is pulled tight., centripetal - a force that acts on a body moving in a circular path and is directed toward the center around which the body is moving, free body diagram - used to show the relative magnitude and direction of all forces acting upon an object in a given situation., Newton’s Second Law of Motion - an object's acceleration is dependent on both its mass and the amount of force applied to it, Newton’s Third Law of Motion - for every action, there is an equal and opposite reaction, orbiting systems - two or more celestial bodies where one object continuously moves around another in a predictable path due to the gravitational pull between them, Newton’s Law of Universal Gravitation - bodies with mass attract each other with a force that varies directly as the product of their masses and inversely as the square of the distance between them,

Phys: Force & Motion

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