Unit 3 Lesson 2 Vocabulary

Front

Newton’s Law of Universal Gravitation

Back

The idea that every object pulls on every other object with gravity.

Front

Gravity

Back

The invisible force that pulls objects toward each other.

Front

Gravitational Force

Back

The strength of the pull between two objects.

Front

Mass

Back

How much matter (stuff) is inside something.

Front

Weight

Back

How strongly gravity pulls on an object.

Front

Newton’s Law of Inertia

Back

Objects want to keep doing what they’re already doing (rest or motion) unless something else acts on them.

Front

Newton’s First Law of Motion

Back

Another way of saying the Law of Inertia.

Front

Orbit

Back

The curved path an object takes as it moves around another object in space.