Universal Gravity and Orbits Review

Suppose the mass of the apple is doubled and its distance from the center of the Earth is also doubled.  How does this affect the gravitational force of the Earth on the apple?

• It does not change.

• The force is one half the original value.

• The force is doubled.

• The force is one-fourth the original value

Tags

NGSS.HS-PS2-4

Which statement is true?

• The force that the earth exerts on the apple is much greater than the force that the apple exerts on the Earth

• The force that the Earth exerts on the apple does not depend on the mass of the apple.  

• The force that the apple exerts on the Earth is the same magnitude as the force that the Earth exerts on the apple.

• The force that the apple exerts on the Earth is repulsive and the force that the Earth exerts on the apple is attractive.

Tags

NGSS.HS-PS2-4

Which object will experience the greatest gravitational force?

• Antares

• Betelgeuse

• Sun

• Rigel

Tags

NGSS.HS-PS2-4

The gravitational attraction between Object 1 and Earth is 641 N. The gravitational attraction between Object 2 and Earth, another object at the same location, is 392 N. How does the mass of Object 1 compare with the mass of Object 2?

• The masses for the 2 objects are the same

• Object 1 has a greater mass

• Not enough information

• Object 2 has a greater mass

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A student is studying gravitational force. He reads in his science textbook that Halley's comet revolves around the Sun. At some point in the motion of Halley's comet, it is at a distance of 5 billion km from the Sun. How will the gravitational attraction between the comet and the Sun change if the distance between the comet and the Sun decreases to 4 billion km?

• The gravitation force always stays the same.

• The distance between the two objects does not affect the gravitational force.

• The gravitation force INCREASES as the distance between them DECREASES

• The gravitation force DECREASES as the distance between them DECREASES

Tags

NGSS.HS-PS2-4

The planet Mercury is revolving in an elliptical orbit around the Sun. The speed of Mercury will be greatest at which point?

• A

• B

• C

• D

Tags

NGSS.HS-ESS1-4

What type of orbit does the Moon have when traveling around the Earth?

• A circular

• An elliptical

• A parabolic

• A spherical

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

A student reads that Saturn is 9.6 astronomical units (AU) from the Sun. What is an astronomical unit?

• Average distance between the center of the Earth and the center of the Moon

• Average distance from the center of the Earth to the center of the Sun

• Average distance between the center of the Sun and the center of the Moon

• Average distance between the center of Mercury and the center of the Sun

Tags

NGSS.MS-ESS1-3