Universal Gravitation

The amount of matter in an object is called...

• mass

• weight

• inertia

• gravity

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

• gravity

• friction

• a strong force

• electromagnetic force

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

• Law of Universal Gravitation

• Newton's First Law of Motion

• Your mother

• Inertia & gravity

The magnitude of the force of gravity is inversely related to...

• Mass

• Weight

• Distance between the masses

• Time

Calculate the gravitational force between two objects when they are 0.8m apart. Each object has a mass of 5.00kg.

• 2.61x10^-9N

• 3.00x10^-6N

• 2.22x10^-9N

• 2.23x10^-8N

Gravitational force exists between all objects with mass.

• False

• True

• It depends on how big they are

What is the gravitational force between two identical 50,000 kg asteroids whose centers of mass are separated by 1500 m?

• 2500 N

• 7.41 x 10^-8 N

• 1.67 x 10^-4 N

• 1.67 x 10^-7 N

A black hole appears black because

• It only has an attractive force on black objects

• the event horizon turns everything black

• It reflects only black light

• Nothing can escape its gravitational pull, not even light

How is gravitational force related to the distance between two masses

• They are directly proportional

• They are inversely proportional

• They do not affect each other

• They are equal

Tags

NGSS.HS-PS2-4

How is the gravitational force between to objects related to their mass

• They are directly proportional

• They are inversely proportional

• They do not affect each other

• They are equal

Tags

NGSS.HS-PS2-4