Studied by 8 people
Vector
________: A quantity that is specified by both a size and a direction.
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.
Terminal Velocity
The ________ is the highest velocity the falling object will reach.
Air Resistance
________: opposes the motion of objects that move through the air.
Friction
________: the force that opposes the sliding motion of two surfaces that are in contact.
Displacement
________: the distance and direction of an objects final position from its initial position.
Reference Frame
a group of objects that are not moving relative to each other
Displacement
the distance and direction of an objects final position from its initial position
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
Net Force
When two or more forces act on an object at the same time
Balanced Forces
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
Static Friction
the frictional force that prevents two surfaces in contact from sliding past each other
Sliding Friction
the frictional force that prevents two surfaces in contact from sliding past each other
Rolling Friction
When an object rolls over a surface, a frictional force due to rolling friction slows the object down
Note 
Flashcard (55)