Module 7 - Gravitation

Kepler's First Law states

• objects attract other objects with a force that is directly proportional to the product of their masses

• the square of the ratio of the periods of any two planets revolving around the Sun is equal to the cube of the ratio of their average distance from the Sun

• An imaginary line joining a planet and the sun sweeps out an equal area of space in equal amounts of time.

• Planets move about the Sun in an elliptical orbit with the Sun at one of the foci.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Kepler's Second Law states

• objects attract other objects with a force that is directly proportional to the product of their masses

• the square of the ratio of the periods of any two planets revolving around the Sun is equal to the cube of the ratio of their average distance from the Sun

• An imaginary line joining a planet and the sun sweeps out an equal area of space in equal amounts of time.

• Planets move about the Sun in an elliptical orbit with the Sun at one of the foci.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Kepler's Third Law states

• objects attract other objects with a force that is directly proportional to the product of their masses

• the square of the ratio of the periods of any two planets revolving around the Sun is equal to the cube of the ratio of their average distance from the Sun

• An imaginary line joining a planet and the sun sweeps out an equal area of space in equal amounts of time.

• Planets move about the Sun in an elliptical orbit with the Sun at one of the foci.

Which of the following is NOT a field force?

• normal force

• electrostatic force

• magnetic force

• gravitational force

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NGSS.MS-PS2-4

NGSS.MS-PS2-5

This is a statement of which scientific law?

Object attract other objects with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them.

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Law of Universal Gravitation

Tags

NGSS.HS-PS2-4

As an object moves further from the surface of the Earth, what happens to its mass?

• The mass of the object will not vary as it moves further from the surface of the Earth

• The mass of the object will decrease as it moves further from the surface of the Earth.

• The mass of the object will increase as it moves further from the surface of the Earth.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following most accurately describes the movement of the Earth around the Sun?

• The Earth moves at a constant speed around the Sun.

• The Earth moves faster when it is closest to the Sun.

• The Earth moves slowest when it is closest to the Sun.

• The Earth's speed varies dependent upon the phase of the moon.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

What would happen to the gravitational force if one of the masses is doubled and the radius is doubled?

• The gravitational force would be quadruple the original.

• The gravitational force would be double the original.

• The gravitational force would be one-half the original.

• The gravitational force would be one-fourth the original.

Tags

NGSS.HS-PS2-4

When in orbit around the Earth, what is true about the relationship between a satellite's distance from the Earth's surface and its velocity in order for the satellite to stay in its orbit?

• A satellite's distance and velocity are inversely proportional; that is, the satellite must travel more quickly to stay in orbit.

• A satellite's distance and velocity are directly proportional; that is, the satellite must travel less quickly to stay in orbit.

• A satellite's velocity is not affect by its distance from the Earth's surface.

• The distance from the Earth's surface is only dependent upon the mass of the satellite.

Tags

NGSS.MS-ESS1-2

The larger the mass of an object...

• The smaller the force of gravity.

• The larger the force of gravity.

• Mass has no effect on the amount of gravity an object experiences.

Tags

NGSS.MS-PS2-4