Physics Flashcard on Forces and Motion

Front

What is another name for Newton's First Law of Motion?

Back

Law of Inertia

Front

According to Newton's First Law, what happens to an object in motion if no unbalanced force acts upon it?

Back

It continues moving at the same speed and direction

Front

What force is responsible for keeping objects on the surface of the Earth?

Back

Gravity

Front

Effect of friction on a moving car when you take your foot off the gas pedal?

Back

It slows down and eventually stops

Front

What is inertia?

Back

The tendency of an object to resist changes in its motion

Front

What is an unbalanced force?

Back

A force that causes a change in the motion of an object

Front

What state is an object in when all forces are balanced?

Back

Equilibrium

Front

What is the greatest force at work on Earth?

Back

Gravity

Front

acceleration

Back

A change in velocity

Front

Newton's Second Law of Motion says that objects of greater mass:

Back

require greater force in order to accelerate