Front

What is a collision?

Back

A collision is when two things hit each other.

Front

How fast can a major league power hitter swing a bat with a mass of 750 g?

Back

About 66 mph.

Front

What is kinetic energy?

Back

Kinetic energy is the energy between objects due to their motion.

Front

What does a free body diagram represent?

Back

A free body diagram shows the forces acting on an object.

Front

Which object has kinetic energy after a cart launches?

Back

The cart has kinetic energy.

Front

What is force?

Back

Force is a push or pull on an object.

Front

What is the relationship between mass and speed in swinging a bat?

Back

As mass increases, speed typically decreases.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position.

Front

What is air resistance?

Back

Air resistance is a force that opposes the motion of an object through air.

Front

What is friction?

Back

Friction is the force that opposes the motion of two surfaces in contact.