Newton's Laws

Front

What is Newton's 1st 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 an unbalanced force.

Front

What is Newton's 2nd 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 3rd Law of Motion?

Back

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

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What unit is used to measure force?

Back

Newton (N) is the unit of force.

Front

If a 10 kg object is accelerated at 3 m/s², what is the force applied?

Back

F = ma = 10 kg * 3 m/s² = 30 N.

Front

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

Back

It will maintain its current state of motion (either at rest or moving at a constant velocity).

Front

How does mass affect acceleration when a constant force is applied?

Back

Greater mass results in less acceleration when the same force is applied (F = ma).

Front

What is the relationship between force, mass, and acceleration?

Back

Force is the product of mass and acceleration (F = ma).

Front

What is an example of Newton's 1st Law in everyday life?

Back

A passenger lurches forward in a car when it suddenly stops.