Force and Motion

Front

What force of motion does a hand brake rely upon to slow a bicycle?

Back

Friction

Front

What principle explains why a sprinkler spins?

Back

Every action has an equal and opposite reaction.

Front

What keeps a person moving forward in a head-on collision if they are not wearing a seat belt?

Back

Inertia

Front

How is a force best defined?

Back

A push or pull that is exerted on matter.

Front

What is inertia?

Back

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

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object's mass.

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 unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma).

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is the difference between speed and velocity?

Back

Speed is the distance traveled per unit of time, while velocity is speed with a direction.