Unit 3 Newton's First Law

Front

What is Newton's First Law of Motion?

Back

An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction, unless acted upon by a net external force.

Front

What is another name for Newton's First Law of Motion?

Back

Law of Inertia.

Front

How do you calculate the net force when forces are acting in the same direction?

Back

Add the magnitudes of the individual forces together.

Tags

NGSS.HS-PS2-1

Front

How do you calculate the net force when forces are acting in opposite directions?

Back

Subtract the smaller force from the larger force.

Front

What happens to an object when the net force acting on it is zero?

Back

The object remains at rest or continues to move with a constant velocity in a straight line.

Front

What is inertia?

Back

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

Front

How does mass affect inertia?

Back

The greater the mass of an object, the greater its inertia, meaning it will be harder to change its state of motion.

Front

What is a net external force?

Back

A net external force is the overall force acting on an object when all individual forces are combined.

Tags

NGSS.MS-PS2-2

Front

Can an object be in motion if no net external force is acting on it?

Back

Yes, an object can be in motion at a constant velocity if no net external force is acting on it.

Front

What is the relationship between net force and acceleration according to Newton's Second Law?

Back

Net force is equal to mass times acceleration (F = ma).