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5th Science


force any push or pull that causes an object to move, stop, or change speed or direction
friction a force that opposes, or acts against motion when two surgaces rub against each other
magnetism the force of attraction between magnets and magnetic boxes
gravitation the force that pulls all objects int he universe toward one another
balanced forces equal in size and opposite in direction
unbalanced forces occurs when one force is greater than its opposite force
net force the value of combined forces on an object
work the use of force to move an object through a distance
power the amount of work done for each unit of time
machine something that makes a task easier by changing the size or direction of a force or the distance over which the force acts
Created by: brtouchet