Gravitation

Two objects move toward each other gravitationally. As they get closer, the force between them:

• remains constant

• increases

• decreases

Tags

NGSS.MS-PS2-4

If you stood on a ladder so you were twice as far from Earth's center, your weight would be:

• one-eighth its normal value

• one-quarter its normal value

• half its normal value

• none of the above

Tags

NGSS.MS-PS2-4

Suppose Fg between two massive spheres M and m is F. If masses were M and 3m, Fg would be:

• 1/3F

• 3F

• 1/9F

• 9F

Tags

NGSS.MS-PS2-4

A 1000-kg car rests on the Earth. The magnitude of Fg of the Earth on the car is:

• 6.67 x10-11 N

• 9.8 N

• 9800 N

• 1000 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

In the last question, what is the magnitude of the gravitational force of the car on the Earth?

• less than the force of the Earth on the car

• equal to the force of the Earth on the car

• greater than the force of the Earth on the car

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-4

Suppose Fg between two massive spheres = 90 N. If distance between spheres is tripled, new Fg=

• 270 N

• 10 N

• 810 N

• 30 N

Tags

NGSS.MS-PS2-4

The graphical relationship between Fg of Earth on a man and distance between Earth and man is:

• 
• 
• 
• 

Tags

NGSS.MS-PS2-4

The graphical relationship between Fg of Earth on another planet and the mass of the planet is:

• 
• 
• 
• 

Tags

NGSS.MS-PS2-4

Jupiter is a much more massive planet than Earth. If you traveled to Jupiter, your mass would

• increase

• decrease

• remain the same

What is the reason for the motion of the moon on its orbit?

• The gravitational force exerted on the Earth by the moon

• The gravitational force exerted by the sun

• The gravitational force exerted by the planets

• The gravitational force exerted on the Moon by the earth

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4