Gravity Review

What happens to the gravitational force if the mass of an object increases?

• increase

• decrease

What happens to the gravitational force if the distance between the objects increases?

• increase

• decrease

If the mass of one object is cut in half, how does the gravitational force change?

• doubles

• quadruples

• cuts to one-half

• cuts to one-quarter

If the distance between the objects is cut in half, how does the gravitational force change?

• doubles

• quadruples

• cuts to one-half

• cuts to one-quarter

What happens to the acceleration due to gravity if the mass of an object decreases?

• increases

• decreases

If the distance between the objects is doubled, how does the acceleration due to gravity change?

• doubles

• quadruples

• cuts to one-half

• cuts to one-quarter

For an object to be in a stable circular orbit it must have an acceleration which is:

• perpendicular

• parallel

• tangential

For an object to be in a stable circular orbit it must have a velocity which is:

• perpendicular

• parallel

• tangential

Planets orbit the Sun in a shape called a(n)

• circle
• ellipse
• focus
• perihelion

A planet moves __________ when it is farthest from the sun.

• faster
• slower