Front

What is the force needed to move objects of larger mass?

Back

More

Front

What force is caused by air and slows things down?

Back

Air Resistance

Front

What force is caused by objects rubbing together?

Back

Friction

Front

Why does a rocket launch?

Back

Because of an opposite reaction.

Front

What must act on an object to change its motion?

Back

A force.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is the definition of mass?

Back

Mass is the amount of matter in an object, usually measured in kilograms.

Front

What is the definition of weight?

Back

Weight is the force exerted by gravity on an object, calculated as mass times the acceleration due to gravity (W=mg).