Newton's First Law 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 with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is the unit of measurement for force?

Back

Newtons (N)

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

How does mass affect inertia?

Back

Objects with greater mass have greater inertia.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

In which direction does friction act?

Back

In the opposite direction of movement.

Front

What is the relationship between heavy objects and inertia?

Back

Heavy objects have more inertia.

Front

What is an unbalanced force?

Back

A force that causes an object to change its state of motion.

Front

What happens to a moving object if no forces act on it?

Back

It continues to move at a constant velocity.

Front

What is the significance of Newton's First Law in everyday life?

Back

It explains why seatbelts are important; they keep passengers in motion when a car suddenly stops.