the process of changing position
motion
the starting point you use to describe the motion or the position of an object
reference point
the total leangth of your path
distance
the difference between you starting position and your ending position
displacement
the distance an object moves divided by the time it takes to move that distance
speed
the speed and direction of a moving object
velocity
a measure of the change in velocity durring a period of time
acceleration
a push or pull on an object
force
pushing or pulling an object while touching
contact force
pushing or pulling an object without touching
noncontact force
a contact force that resists the sliding motion of 2 surfaces that are touching
friction
an attractive force that exits between all objects that have mass
gravity
forces acting on an object that combine and form a net force of zero
balenced force
forces acting on an object that combine and form a net force that is not zero
unbalanced force
the sum of forces acting on an object
net force
the tendency of of an object to resist a change in motion
inertia
law that states that if the net force acting on an object is zero, the motion of the object does not change
firts law
law that states that the acceleration of an object is equal to the net force exerted on the object divited by the object's mass
second law
law that states that from every action there is an equal and oppist reaction
third law
the forces 2 objects apply to each other
force pair