The law of universal gravitation is credited to whom?

• Einstein
• Galileo
• Darwin
• Newton

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass

Where would you have to travel to reduce your weight but not lose any mass?

• The moon
• The Sun
• Jupiter
• Saturn

This states that all objects attract each other through gravitational force.

• The law of conservation of mass
• Newton's second law of motion
• The law of universal gravitation
• The law of free falling objects

What model is where the earth is in the middle of our universe?

• Heliocentric Model
• Geocentric Model
• Moon phases
• Tidal Phases

As mass increases, gravity ________________.

• Increases 
• Decreases 
• Stays the same 

How long does it take the earth to make 1 revolution

• One year
• One day
• One hour
• One minute

As distance increases, gravity __________________.

• Increases 
• Decreases 
• Stays the same 

What Model is where the sun is the center of the universe?

• Geocentric
• Heliocentric
• Earth's rotations
• Earth's planets

This image shows the:

• Geocentric Solar System
• Heliocentric Solar System