Gravity Post Assessment

The gravitational attraction between two objects would increase if both masses are –

• increased, and the distance between them is increased.

• increased, and the distance between them is decreased.

• decreased, and the distance between them is decreased.

• decreased, and the distance between them is increased.

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NGSS.MS-PS2-4

Why do planets orbit the Sun?

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NGSS.MS-ESS1-1

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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

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Gravity is the Force of ​ (a)   between two or ​ (b)   masses.

• attraction
• more
• push
• pull
• one
• two
• five

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NGSS.MS-PS2-4

Look at the table provided. Remember mass and distance determine the amount of gravitational attraction.

In which example is the gravitational force of attraction between the two objects the greatest?

• Example 1

• Example 2

• Example 3

• Example 4

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NGSS.MS-PS2-2

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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

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The gravitational attraction between two objects is reduced most when masses are ​ ​ (a)   and the distance between them is ​ (b)  

• decreased
• increased

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NGSS.MS-PS2-4

Which of the following would have the greatest gravitational attraction between the two masses? (LOOK at the #'s of mass and distance CAREFULLY)

• 
• 
• 
• 

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

If Neptune’s mass was reduced, which of the following could be done to maintain the same force of gravitational attraction between Neptune and the Sun?

• Increase the distance between Neptune and the Sun

• Decrease the distance between Neptune and the Sun

• Increase the amount of energy the Sun puts out

• Decrease the speed of rotation of Neptune

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NGSS.MS-PS2-4

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

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NGSS.MS-ESS1-1

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