Gravitation

Newton said that any two masses will...

• combine into a larger mass.

• attract each other.

• create gravitational fields.

• push each other apart.

According to Newton's law of gravitation, the Earth and the Moon are gravitationally attracted to each other. The more massive Earth attracts the Moon with...

• a stronger force than the Moon attracts the Earth.

• a weaker force than the Moon attracts the Earth.

• the same force as the Moon attracts the Earth.

• a force that is sometimes stronger and other times weaker than the Moon attracts the Earth.

The picture shows three objects gravitationally interacting with each other. Which object exerts the greatest force on object B?

• Object A

• Object C

• A and C exert an equal force on B

• Cannot be determined

The picture shows three objects gravitationally interacting with each other. Which object exerts the greatest force on object B?

• Object A

• Object C

• A and C exert an equal force on B

• Cannot be determined

A massive object and a less massive object exert a gravitational force on each other. Which of the following picture correctly shows the magnitude and direction of the forces involved in this interaction?

• 
• 
• 
• 

The picture shows three bodies (A, B, and C) that gravitationally attract each other. Between which two bodies is the force of gravity the strongest?

• A and B

• A and C

• B and C

• Equal for all

The amount of matter in an object

• mass
• weight
• inertia
• gravity

The moon and other satellites rotate around the earth. Identify the force that keeps these satellites in orbit.

• gravity
• friction
• a strong force
• electromagnetic force

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