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PE KE Forces Newtons

PE, KE & Forces & Newton's Laws

TermDefinition
energy the ability of a system to do work
force a push or a pull that can change the motion of an object
potential energy energy that is stored in a system or object
relative position where an object is located in relation to another object
system a group of interacting, interrelated, or interdependent elements forming a complex whole
kinetic energy energy of motion
Law of Conservation of Energy Scientific law stating that energy can be neither created or destroyed, but just changes form
mass a measure of how much matter is present in a substance
motion the change in an object's position with respect to time and in comparison with the position of other objects used as reference points
speed the rate of change of position (or distance traveled) with respect to time
acceleration a change in motion caused by an unbalanced force acting on an object; includes increasing speed, decreasing speed, or change in direction
direction a straight path that an object can move along
frame of reference a system that uses coordinates or background objects to establish position or to measure movement of a point in space
collide to strike or hit something with any amount of force
Newton, N unit of measurement for force
Newton's 3rd Law of Motion (Action-Reaction) Newton's law stating that for every action force, there is an equal and opposite reaction;
Spring Scale a tool that measures a pulling force by the tension on a spring in units of Newtons
Newton's 2nd Law of Motion the acceleration of an object depends upon both force and mass so that force = mass x accleration
Newton's 1st Law of Motion (Law of Inertia) law stating that an object at rest will stay at rest, and an object in motion will stay in motion, until acted on by an outside force
inertia the resistance of an object to changes in motion
Created by: MrsSanborn
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