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dills since 11,12

Chapter 11-12

speed a change of distance over time
velocity describes the objects speed and motion
force a push or a pull.
acceleration speed or direction of a moving object
inertia the tendency of a moving object to keep it moving
friction is a force that works against motion
gravity is a force or pull
balanced forces are forces that cancel each other
unbalanced forces forces that are not equal to each other
newton metric units
work a force is used to move an object a certain distance.
energy is the ability to work
potential energy stored energy
kinetic energy energy of motion
Created by: jerrymike