Newton's First Law of Motion

Front

What is the tendency of an object to resist a change in motion?

Back

Inertia

Front

Why does a crumpled piece of paper hit the ground before a flat sheet of paper?

Back

There is more air resistance against the flat paper.

Front

If one object has twice as much mass as another, what else does it have twice as much of?

Back

Inertia

Front

What is the sum of forces when a box is pushed with 10N to the right and 8N to the left?

Back

2N right

Front

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

Back

Newton's First Law of Motion

Front

Define 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 a net force?

Back

The overall force acting on an object when all the individual forces are combined.

Front

What is the relationship between mass and inertia?

Back

Inertia is directly proportional to mass; more mass means more inertia.

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 air resistance?

Back

A type of friction that acts against the motion of an object moving through air.