Unit 3 Science Review: Force and Motion

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

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

Front

What happens when two forces are equal and opposite?

Back

The object stays in the same place.

Front

What is friction?

Back

A force that opposes motion between two surfaces that are in contact.

Front

What is a simple machine?

Back

A tool that makes work easier, like a lever or pulley.

Front

What is a ramp?

Back

A sloped surface that helps objects move up or down.

Front

What is magnetism?

Back

A force that can attract or repel certain materials, like iron.

Front

What is a tug-of-war?

Back

A game where two teams pull on opposite ends of a rope.

Front

What happens to a paper airplane when it is thrown?

Back

It moves through the air until gravity pulls it down.