universal law of gravitation and escape velocity

According to the Newton’s Universal Law of Gravitation, the force of gravity between two objects is directly proportional to

• The distance between the objects.

• The product of the masses of the objects.

• The gravitational constant.

• The square of the distance between the objects.

Tags

NGSS.MS-PS2-4

According to the Newton’s Universal Law of Gravitation, the force of gravity between two objects is inversely proportional to

• the distance between the objects.

• the product of the masses of the objects

• the gravitational constant

• the square of the distance between the objects

Tags

NGSS.HS-PS2-4

The force of gravity on a 50 kg woman is 500 N. The woman also exerts a gravitational force on the Earth. How large a force is this?

• 0 N

• 500 N

• 245 N

• 980 N

Tags

NGSS.MS-PS2-4

Which of the following factors affects the escape velocity of an object from the surface of the earth?

• Mass of earth

• Gravity of satellite

• Acceleration due to gravity

• Mass of object

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NGSS.HS-PS2-4

Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.

• 2.96x10^-7N

• 3.00x10^-6N

• 2.22x10^-9N

• 2.23x10^-8N

Tags

NGSS.HS-PS2-4

What is the gravitational force between two identical 50,000 kg asteroids whose centers of mass are separated by 1000 m?

• 2500 N

• 3.3 x 10^-12 N

• 1.67 x 10^-4 N

• 1.67 x 10^-7 N

Tags

NGSS.HS-PS2-4

Two spherical objects have masses of 8000 kg and 1500 kg. Their centers are separated by a distance of 1.5 m. Find the gravitational attraction between them

• 5.4 X 10^-4 N

• 1.2 X 10⁷ N

• 3.6 X 10^-4 N

• 5.33 N

Tags

NGSS.MS-PS2-4

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

• more
• same
• dosen't matter
• less

Which configuration will result in the greatest gravitational force?

• small masses far apart

• large masses far apart

• small masses close together

• large masses close together

Tags

NGSS.MS-PS2-4

Newton's Third Law of Motion states that forces

• always act in equal or opposite pairs

• equal mass times velocity

• act on an object to move it or to stop it.

Tags

NGSS.MS-PS2-1