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# newtons laws test

TermDefinition
displacement the distance and direction of an object final position from its initial position
vector a quantity that is specified by both a size and direction
speed the distance an object travels per unit of time
instantaneous speed the speed at a single instant of time
average speed the total distance traveled divided by the total travel time
velocity the speed of the object and its direction of motion
acceleration the change in velocity divided by the time for the change to occur
force a push or pull that one object exerts on another
net force when two or more forces act on an object at the same time the forces combine
balanced force forces on an object that are equal in size and opposite in direction
unbalanced forces when forces combine to produce a net force that is not zero the forces acting on the object are unbalanced
friction force that opposes the sliding motion of two surfaces that are in contact
static friction frictional force that prevents two surfaces in contact from sliding past each other
sliding friction force that acts in the opposite direction to the motion of a surface sliding on another surface
air resistance opposes the motion of objects that move through the air
first law of motion an object in motion will remain in motion until acted on by an unbalanced force
third law of motion for every action there is an equal and opposite reaction
inertia the resistance of an object to a change in its motion
gravity attraction force between two objects that depends on the masses of the objects and the distance between them
weight gravitational force exerted on an object
momentum property of a moving object
Created by: katejennings12