Force and Motion

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inertia

Newton's First Law of Motion is also called the law of ______

force

a push or a pull / what you get when you multiply an object's mass times the acceleration

Newton's First Law

an object at rest stays at rest, and an object in motion stays in motion, unless acted on by an outside force

momentum

an object tends to keep moving because it has this quality

kinetic

energy an object has because it is moving. (a skier traveling downhill has this type of energy)

potential

energy that is stored up on an object because of its position. (a skier at the top of a hill has more ____ energy than a skier at the bottom)

Newton's Third Law

every action has an equal and opposite reaction

gravity

everything gets pulled down toward the earth's center because of this force

Newton

the scientist who came up with the three laws of motion

velocity

the speed and direction of a moving object

Newton's Second Law

unbalanced forces cause objects to accelerate, or move faster

equilibrium

when two balanced forces cancel each other out

friction

when two objects rub against each other it creates this

acceleration

this is the result of unbalanced forces making an object speed up


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