Gravitation

Newton said that any two masses will...

• combine into a larger mass.

• attract each other.

• create gravitational fields.

• push each other apart.

Tags

NGSS.HS-PS2-4

According to Newton's law of gravitation, the Earth and the Moon are gravitationally attracted to each other. The more massive Earth attracts the Moon with...

• a stronger force than the Moon attracts the Earth.

• a weaker force than the Moon attracts the Earth.

• the same force as the Moon attracts the Earth.

• a force that is sometimes stronger and other times weaker than the Moon attracts the Earth.

Tags

NGSS.HS-PS2-4

Which of the following best explains why a person has less weight on top of a mountain?

• They are closer to space.

• The atmosphere is lighter.

• The mountain adds more mass.

• The mountain adds more distance.

Tags

NGSS.HS-PS2-4

The picture shows three objects gravitationally interacting with each other. Which object exerts the greatest force on object B?

• Object A

• Object C

• A and C exert an equal force on B

• Cannot be determined

Tags

NGSS.HS-PS2-4

The picture shows three objects gravitationally interacting with each other. Which object exerts the greatest force on object B?

• Object A

• Object C

• A and C exert an equal force on B

• Cannot be determined

Tags

NGSS.HS-PS2-4

A massive object and a less massive object exert a gravitational force on each other. Which of the following picture correctly shows the magnitude and direction of the forces involved in this interaction?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-4

The gravitational force in the previous interaction was 20 N. Determine the gravitational force in the new situation where the second mass is doubled.

• 10 N

• 20 N

• 40 N

• 80 N

Tags

NGSS.HS-PS2-4

The distance between the two masses in the previous situation is halved. Determine the gravitational force in this new situation.

• 20 N

• 40 N

• 80 N

• 160 N

Tags

NGSS.HS-PS2-4

The picture shows two exoplanets, b and c. The mass and radius of each planet is given in terms of M and r. What is the surface gravity on planet-c if the surface gravity on planet-b is 4 m/s²?

• 2 m/s²

• 4 m/s²

• 8 m/s²

• 32 m/s²

Tags

NGSS.HS-PS2-4

A newly discovered exoplanet has triple the mass and double the radius as compared to Earth. What is the approximate surface gravity on this exoplanet?

• 1.5 N/kg

• 7.5 N/kg

• 15 N/kg

• 60 N/kg

Tags

NGSS.HS-PS2-4