Vocabulary
The movement of one object around another object is called _____.
Revolution
What happens to your mass if you travel to the moon?
When you travel to the moon, your mass doesn't change because mass is the amount of matter in your body and stays the same everywhere.
What is a vector?
A vector is a quantity that has both magnitude and direction.
What forces work together to create an orbit?
Gravitational force, centripetal force, and inertia.
The ________ helps scientists calculate mass using density and volume.
Equation of Mass
What is the Equation for Mass?
The Equation for Mass is Mass = Density x Volume
What is inertia?
Inertia is the tendency of an object to stay at rest or stay moving.
Explains how an orbit forms.
The gravity pulls the planet towards the sun, and the inertia propels the planet forwards.
The force that keeps planets moving in a curved path around the sun is called ______.
Centripetal Force
What happens to gravity when distance between two objects increases?
When distance between two objects increases, the gravity decreases as the distance gets farther and farther away.