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# force and motion

TermDefinition
newtons first law of motion An object at rest stays at rest or an object in motion stays in motion until unbalanced forces act upon it. This is often referred to as Newton's law of inertia.
newtons first law of motion a car that is driving and a car that is parked
inertia The tendency of a physical object to remain still or continue moving unless force is applied
inertia a rock just sitting on a table
at rest The state of an object when it is not in motion
at rest a basketball sitting on the floor
unbalanced force Forces on an object that cause change in the motion of the object
unbalanced force a ball falling on the ground and bouncing in the air
Newton’s Second Law of Motion Acceleration of an object depends on the object's mass and the magnitude of the force acting upon it (F = ma). This is often referred to as Newton's law of force and acceleration.
Newton’s Second Law of Motion a roller coaster
force A push or pull that can change the motion of an object
force pushing on a door
magnitude The size or quantity of something
magnitude a airplane in the air
acceleration The rate of change in an object's speed
acceleration an airplane taking off
Newton’s Third Law of Motion For every action there is an equal and opposite reaction. This is often referred to as Newton's law of action-reaction.
Newton’s Third Law of Motion a spaceship taking off to space
action The way that something causes a change
action catching a baseball
reaction Resistance or force of equal magnitude acting in the opposite direction of an action force
reaction domino's hitting each other
Created by: 0202doerre

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