Forces Unit vocabulary

a push or pull on an object

The combination of all forces acting on an object

Equal forces acting on an object in opposite directions, there is no change in motion

two or more forces that are not equal and opposite of one another; can cause change in motion

An object's change in position relative to a reference point.

The distance an object travels per unit of time

the speed of an object in a particular direction

SI unit of force, equal to 100g on earth

A force that opposes motion between two surfaces that are in contact

A force of attraction between objects that is due to their masses, a distance force

the amount of matter in an object

A measure of the force of gravity on an object

the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth, has horizontal and vertical motion

The ability to do work or cause change

The conversion of one form of energy into another, or the movement of energy from one place to another.

the energy an object has due to its motion

stored energy that results from the position or shape of an object

A force that acts in a direction parallel with the horizon

A force that acts in a direction perpendicular to the horizon

to act in opposition to

Friction that acts due to movement of one surface over another

Friction that acts on objects that are not moving

standing still; not moving

rate of change of velocity, change in speed or direction

negative acceleration

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Force = mass x acceleration

For every action force there is an equal and opposite reaction force