cause - an event or process that leads to a result or change, collision - the moment when two objects hit each other, effect - a result or change that happens because of an event or process, equal - the same in quantity, size, degree, or value, inertia - the tendency to do nothing or remain unchanged, exert - to apply a force, force - a push or a pull that can change the motion of an object; measured in N (Newtons); F=m*a, friction - a force between an object and the surface it is moving over, kinetic energy - the energy that an object has because it is moving, mass - the amount of matter that makes up an object, matter - anything that has mass and takes up space, opposite - acting or going in the reverse direction, speed - how fast an object is moving, velocity - speed in a particular direction, balanced force - multiple forces acting on an object that are equal in size but opposite in direction, unbalanced force - causes acceleration or a change in motion, net force - combination of all forces on an object, acceleration - the rate an object changes speed / direction; can mean speed up, slow down, or change direction, Newton’s First Law - Law of Inertia; an object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon by an unbalanced force, Newton’s Second Law - Law of Force and Acceleration; acceleration of an object depends on net force and mass, so the greater the mass of an object the greater the force needed to move it, Newton’s Third Law - Law of Action and Reaction; for every action there is an equal and opposite reaction,

Force & Motion / Newton's Laws

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