Force and Motion

Front

What is the change in an object's position called?

Back

Motion

Front

What happens when two equal forces pull on opposite ends of a rope?

Back

Both girls will stay in the same place.

Front

What type of force produces a change in motion?

Back

Unbalanced force

Front

What two forces are present when an object is sliding down a hill?

Back

Friction & Gravity

Front

Why is friction important?

Back

It helps make objects go slower or stop.

Front

What is a force?

Back

A push or pull on an object.

Front

What is gravity?

Back

A force that pulls objects toward each other, like the Earth pulling us down.

Front

What is balanced force?

Back

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

Front

What is unbalanced force?

Back

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

Front

What is friction?

Back

A force that opposes motion between two surfaces in contact.