Exit Check 3.3 - Universal Gravitation

3.3.1

Which of the following formulas is the correct equation for the law of Universal gravitation?

Answer explanation

This question links to success criteria 3.3.1: I can predict how a change in mass or distance will affect the force of gravity between two objects.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4

3.3.1

If the mass of one object is quadrupled (x4) and the distance between the objects does not change, how will the force of gravity between both of the two objects change as a result?

• The force of gravity will be halved (divided by 2)

• The force of gravity will be doubled

• The force of gravity will also be quadrupled

• The force of gravity will be quartered (divided by 4)

Answer explanation

This question links to success criteria 3.3.1: I can predict how a change in mass or distance will affect the force of gravity between two objects.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4

3.3.1

If the mass of both objects remains unchanged but the distance between them is increased to 5 times what it was before, how will the force of gravity between both of the two objects change as a result?

• The force of gravity will increased to 5 times what it was before

Answer explanation

This question links to success criteria 3.3.1: I can predict how a change in mass or distance will affect the force of gravity between two objects.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4

Answer explanation

This question links to success criteria 3.3.2: I can use the Law of Universal Gravitation to calculate the acceleration due to gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4

Answer explanation

This question links to success criteria 3.3.2: I can use the Law of Universal Gravitation to calculate the acceleration due to gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4

3.3.2

Researches have identified a world that they believe could be habitable should human space craft ever be able to make the trip. If Kepler-1649c is predicted to have the same mass as earth but have a radius that is larger than earth's, which statement about the acceleration from gravity on that planet would be true?

• The acceleration from gravity on Kepler-1649c would be higher than earths because the radius increased.

• The acceleration from gravity on Kepler-1649c should be higher because it is larger

• The acceleration from gravity should be the same as on earth because the mass is the same.

• The acceleration from gravity on Kepler-1649c would be lower than earths because the radius increased.

Answer explanation

This question links to success criteria 3.3.2: I can use the Law of Universal Gravitation to calculate the acceleration due to gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4

3.3.3

Use your knowledge of Kepler's Laws and of Newton's Law of Universal Gravitation to rank the following points by how strong the force of gravity is on them. Place the location with the weakest force on the far left and the strongest force on the right.

<-Weak, Strong->

• H

• A

• L

• F

• C

Answer explanation

This question links to success criteria 3.3.3: I can explain how gravity provides the driving force for orbital motion.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

3.3.3

Use your knowledge of Kepler's Laws and of Newton's Law of Universal Gravitation to rank the following points by how strong the force of gravity is on them. Place the location with the weakest force on the far left and the strongest force on the right.

<-Weak, Strong->

• c

• b

• e

• d

Answer explanation

This question links to success criteria 3.3.3: I can explain how gravity provides the driving force for orbital motion.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

3.3.3

Why does the satellite orbit the earth as shown in the picture? Use your knowledge of Newton's work to select the best explanation.

• Newton and Kepler are both wrong.

• The circle shape is an illusion created by the earth's movement, the satellite is actually moving in a straight line.

• Gravity is always pulling on the satellite in the direction of the center of the earth. This causes its path to bend around the earth.

• The satellite is already moving and as a result it doesn't stop moving.

Answer explanation

This question links to success criteria 3.3.3: I can explain how gravity provides the driving force for orbital motion.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

3.3.3

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

• Law of Universal Gravitation

• Newton's First Law of Motion

• Kepler's Third Law of orbital motion

• Valentine's Law

Answer explanation

This question links to success criteria 3.3.3: I can explain how gravity provides the driving force for orbital motion.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4