6.11

If mass ____________ the force of gravity increases. If distance _____________ the force of gravity will decrease.

• increases, decreases

• decreases, increases

• stops, increases

• none of these

Tags

NGSS.MS-PS2-4

Why do planets orbit the Sun?

• The Sun is the only celestial object that has a gravitational pull.

• The Sun's chemical composition makes it attract planets.

• Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

• The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Gravity can be defined as the -

• force of attraction between two or more masses.

• friction created when two objects are in contact.

• energy given off by stars due to nuclear reactions.

• path an object follows as it moves through space.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

The path that planets take as they orbit the center of the solar system is a result of the interaction of what two things?

• The forward motion of the planet and gravitational pull of the Sun.

• The mass of the planet and the composition of its atmosphere.

• The magnetic field generated by the planet and friction with the air.

• The age of the solar system and the radioactive decay of elements.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Planets in our solar system orbit the Sun because it -

• has the greatest magnetic field.

• is the celestial body with the greatest mass.

• is the brightest object in our solar system.

• formed millions of years before the planets.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

If the distance between Mercury and the Sun were increased, what could be done to maintain the same gravitational force of attraction between Mercury and the Sun?

• Decrease the masses of Mercury and the Sun

• Decrease Mercury's speed of orbit around the Sun

• Increase the masses of Mercury and the Sun

• Increase Mercury's speed of orbit around the Sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Look at the table provided. In which example is the gravitational force of attraction between the two objects the greatest?

• Example 1

• Example 2

• Example 3

• Example 4

Tags

NGSS.MS-PS2-4

The orbital paths of objects in our solar system are the result of which of the following?

• The shape of the bodies and their chemical compositions.

• The balance between the motion of the bodies and gravitational forces.

• The relative age of the bodies and their chemical compositions.

• The frictional forces acting on the bodies when they hit space debris.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which two regions of Earth in the illustration are experiencing winter?

• Northern and Southern Hemispheres at position A

• Northern Hemisphere at position A and Southern Hemisphere at position B

• Northern and Southern Hemispheres at position B

• Northern Hemisphere at position B and Southern Hemisphere at position A

Tags

NGSS.MS-ESS1-1

REVIEW Q: A student observed the lunar cycle and recorded some observations in the table below. The shaded area of each sketch represents the dark area of the Moon. Which lunar phase did the student likely observe on day 1?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-1