Front

The __________ is the force of a surface on an object running parallel to the surface.

Back

force of friction

Front

The __________ is the force of a surface on an object running perpendicular to the surface.

Back

normal force

Front

__________ tells how much material is contained in an object.

Back

mass

Front

When a force acts at an angle Θ measured from the horizontal, the horizontal components of that force equal __________

Back

FcosΘ

Front

The net force on an object in equilibrium is __________.

Back

zero

Front

The __________ is the force that opposes the motion of an object.

Back

force of friction

Front

The __________ is the gravitational force acting on an object.

Back

weight

Front

The __________ is the ratio of the force of friction between two bodies and the normal force pressing them together.

Back

coefficient of friction

Front

In physics, __________ is the quantity of matter in an object, typically measured in kilograms.

Back

mass

Front

The __________ states that an object at rest will remain at rest, and an object in motion will remain in motion unless acted upon by a net external force.

Back

Newton's First Law of Motion