Motion Vocabulary

the change in position of an object

• Air resistance

• Newton's First Law

• Terminal Velocity

• displacement

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

• displacement

• motion

• speed

• momentum

the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity

• Centripetal Acceleration

• Force

• Terminal Velocity

• Net force

The distance an object travels per unit of time

• Speed

• Motion

• Field

• Gravity

The rule that in the absence of outside forces the total momentum of objects that interact does not change.

• Gravity

• Acceleration

• Newton's Second Law

• Law of Conservation of Momentum

the force or speed with which something moves

• Weight

• Inertia

• Momentum

• Acceleration

the motion of a falling object when the only force acting on it is gravity

• Free Fall

• Gravity

• Force

• Field

the speed of an object in a particular direction

• Speed

• Velocity

• Gravity

• Newton's First Law

A force that causes an object to move in a circle

• Force

• Net Force

• Centripetal Acceleration

• Centripetal Force

force that opposes the motion of objects that move through the air

• Centripetal Force

• Inertia

• Air Resistance

• Weight