Newton's Laws of Motion

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

Force = Mass × Acceleration (F = ma). This law explains how the velocity of an object changes when it is subjected to an external force.

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, typically measured in kilograms.

Front

What is the definition of weight?

Back

Weight is the gravitational force acting on an object, calculated as mass × gravitational acceleration (W = mg).

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined.

Front

If a book weighs 4 N and is held at rest, what is the net force on the book?

Back

0 N.

Front

What happens to an object in motion if no net force acts on it?

Back

It continues to move at a constant velocity.

Front

What is an example of inertia?

Back

A soccer ball remains motionless until it is kicked by a player.

Front

How does mass affect weight?

Back

Weight increases with mass; more mass means more gravitational pull.