force - push or pull on matter that enables that matter to CHANGE motion and interact; transfer and transform energy, net force - the sum of all the forces acting on an object, unbalanced forces - change the motion of an object; net force ≠0, balanced forces - do not change the motion of an object; net force =0, acceleration - ANY change in motion; can be in direction or speed, magnitude - the quantity or amount, Newton’s First Law/Law of Inertia - objects will remain at rest OR in constant motion UNLESS acted on by an unbalanced force, linear motion - the motion of an object traveling in a straight line, direction - the path of movement, speed - the distance an object travels divided by the time it takes to travel that distance, displacement - the object's overall change in position, from a starting point to an ending point, constant speed - when an object does not increase or decrease its speed, average speed - calculated by dividing the total distance traveled by the total time of travel; s = d/t, velocity - Speed + direction,

7th gr Motion & Forces

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