Newton's Laws of Motion Flashcards

Front

Newton's First Law of Motion (Law of Inertia)

Back

An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force

Front

Inertia

Back

Resistance of an object to changing its motion; is directly proportional to mass.

Front

Unbalanced Force

Back

When the forces on an object push or pull harder in one direction than another, causing a change in motion.

Front

Balanced Force

Back

When the forces on an object are equal in opposite directions, thus cancelling each other out and causing no change in motion.

Front

According to Newton's first law of motion, when will an object at rest begin to move?

Back

When an unbalanced force acts upon it.

Front

They will only see the door move when

Back

one person exerts more force than the other, so the forces are unbalanced.

Front

Newton's Second Law of Motion

Back

Force equals mass times acceleration (F = ma)

Front

Unit of mass

Back

Kilogram

Front

Acceleration

Back

The rate at which velocity changes; e.g. speeding up

Front

Unit of acceleration

Back

m/s² or meters per second squared