A push or a pull
Force
The combination of all the forces acting on an object
Net Force
A force that two surfaces exert on each other when they rub against each other
Friction
The force that pulls objects toward each other
gravity
The gravitational force exerted on an object at the surface of a planet
weight
The friction that acts on an object that is not moving.
static friction
The friction that occurs when two solid surfaces slide over each other
sliding friction
The friction from an object that rolls across a surface
rolling friction
The only force acting on the object is gravity
free fall
A type of fluid friction that acts on objects falling through the air
air resistance
The force exerted by an elastic object when its shape is changed
elastic force
An elastic force that squeezes or pushes matter together
compression
An elastic force thhat stretches or pulls matter
tension
Any force that causes an object to move in a circular path.
centripetal force
The upward force exerted by a fluid on a submerged object.
Buoyant force
The branch of science concerned with the nature and properties of matter and energy.
physics
A change in position of an object with respect to its reference point.
motion
A place or object used for comparison to determine if something is in motion.
reference point
The total length of the actual pathh between two points.
distance
The length and direction of a straight line between starting and ending points
displacement