Unit 2: Applications of Newton's Laws (Space Systems) Review!

Who created the Universal Law of Gravitation?

• Copernicus
• Newton
• Kepler
• Galileo

What states that "every object in the universe attracts every other object"?

• Law of Universal Gravitation
• Newton's First Law of Motion
• My mother
• Inertia & gravity

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

Force of gravity is directly proportional to

• Mass
• Weight
• Distance
• Time

Force of gravity is inversely proportional to

• Mass
• Weight
• Distance
• Time

If I double the distance between two objects, what happens to their gravitational Force?

• 4x bigger
• 4x smaller
• 2x bigger
• 2x smaller

If I double the mass of one object, but don't change anything else... WHat happens to the gravitational force between two objects?

• Doubles
• Quadruples
• Cut in Half
• 4x Smaller

What happens to Gravitational force if I double both of the masses but don't change their distance?

• doubles
• half as big
• 4x bigger
• 4x smaller

Gravity attracts all objects towards one another.

• False
• True
• It depends

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

• more
• same
• dosen't matter
• less