Front

What is force?

Back

A push or pull on an object.

Front

What is motion?

Back

The change in position of an object over time.

Front

What is gravity?

Back

The force that pulls objects toward each other, especially the pull of the Earth on objects.

Front

What is mass?

Back

The amount of matter in an object.

Front

What is weight?

Back

The measure of the force of gravity on an object.

Front

What is friction?

Back

The force that opposes the motion of an object when it comes in contact with another surface.

Front

What happens to a ball when it rolls on the ground?

Back

It eventually stops due to friction.

Front

What is the difference between mass and weight?

Back

Mass is how much matter is in an object, while weight is the gravitational pull on that object.

Front

What is a balanced force?

Back

Forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Forces that are not equal, causing a change in motion.