This force is objects' pull on each other.

The amount of space between things.

Stretching a rubber band is an example of this.

Lightening produces these types of energy

This makes thing move, stop, and change direction or speed.

This is an invisible force that slows things down and heats them up.

The rate of movement of an object

When you speed down a hill on a roller coaster, it is an example of this.

Batteries in a toy have this kind of energy.

Earthquakes ans ocean waves are examples of forces caused by this.

This force can push or pull objects made of metals, like iron.

The strength of energy that moves an object

To measure energy you multiply force by this.

A campfire produces these types of energy.

An engine propelling a rocket into space is an example of force caused by what.

These types of surfaces exert for friction than smooth ones.

The act of going from one place to another.

The food you eat and the gas that you put in a car both have this.

This famous scientist developed laws of motion.

When two kids push against each other and no one is moved, it is called a ______________ force.

The pull of gravity depends on the what of an object?

The amount of matter an object consists of, measured on Earth by its weight.

The strength or force that keeps something moving.

An object at rest likes to stay at rest. An object in motion likes to stay in this.

When you are on a roller coaster, at the top of the big hill, this type of energy is highest.