Law of Universal Gravitation Review

Two objects have a gravitational force of 40 N.  What is the new gravitational force if the mass of one object doubles?

• 10 N
• 20 N
• 40 N
• 80 N

Suppose that two objects attract each other with a gravitational force of 64 units. If the distance between the two objects is doubled, what is the new force of attraction between the two objects?

• 4
• 16
• 32
• 64

Suppose that two objects attract each other with a gravitational force of 8 units. If the distance between the two objects is reduced in half, what is the new force of attraction between the two objects?

• 4
• 16
• 32
• 64

In which picture will the Hubble space telescope feel the greatest force of gravitation?

• First picture

• second picture

In which picture will the earth and boulder feel the greatest force of gravitation?

• first picture

• second picture

Suppose two objects attract each other. If the distance between the two objects is tripled, what happens to the gravitational force of attraction between the two objects?

• It increases 3 times. 
• It increases 9 times.
• It decreases 3 times.
• It decreases 9 times

Suppose two objects attract each other. If the distance between the two objects is doubled, what happens to the gravitational force of attraction between the two objects?

• It increases 2 times. 
• It increases 4 times.
• It decreases 2 times.
• It decreases 4 times. 

Suppose two objects attract each other. If the distance between the two objects is reduced to half, what happens to the gravitational force of attraction between the two objects?

• It increases 2 times. 
• It increases 4 times.
• It decreases 2 times.
• It decreases 4 times. 

What happens to the force of attraction if one of the masses of the object doubles?

• doubles
• triples
• quadruples
• nothing happens

What happens to the force of attraction if both of the masses of the object double?

• doubles
• triples
• quadruples
• nothing happens