GARVITY AND ORBITS VOCABULARY!

GRAVITY

• The force of attraction between two masses.
• Fact: the gravity between your body and earth prevents you from floating in space.

ORBIT

• The path an object takes as it travels around another object.
• Fact:earth's orbit around the sun takes 365 days to complete.

INERTIA

• The tendency of a moving object to continue moving in a straight line.
• Fact:gravity and friction affect an object inertia.

ELLIPSE

• A flattened circle.
• Fact:planets move through space in ellipses.

TIDE

• The rise and fall of the ocean's surface.
• Fact:the moon's gravitational pull affects tides on earth.