A Newton's Laws of Motion - 12/3

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 with the same speed and in the same direction 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 formula to calculate force?

Back

Force (F) = mass (m) × acceleration (a)

Front

If a 40 kg student is pushed with a force of 120 N, what is the student's acceleration?

Back

3 m/s²

Front

What happens to the force required to maintain motion if mass is tripled?

Back

The force is tripled.

Front

What is friction?

Back

A force that opposes the direction of motion of an object as it slides over a surface.

Front

What effect does friction have on the motion of objects?

Back

It slows them down.

Front

Who discovered the Laws of Motion?

Back

Isaac Newton.

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

As mass increases, acceleration decreases if the force is constant.