NGSS.HS-PS2-4

A nebula starts to collapse because of:

• A nearby star shining it's light
• A passing spaceship
• A passing comet
• Gravity

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NGSS.HS-PS2-4

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were doubled?

• 9
• 18
• 72
• 144

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NGSS.HS-PS2-4

At which point is the electric field the strongest

• A
• B
• C
• D

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NGSS.HS-PS2-4

At which point is the electric field the weakest?

• A because it is the furthest away
• A because the field lines are further apart
• C because the field lines are further apart
• C  because it is the furthest away

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NGSS.HS-PS2-4

Coulomb's law also says if distance increases, then force

• decreases

• disapears

• destroyed in a heartbeat

• doubles

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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.

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NGSS.HS-PS2-4

Force of gravity is inversely proportional to

• Mass
• Weight
• Distance
• Time

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NGSS.HS-PS2-4

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

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NGSS.HS-PS2-4

The force of attraction between all matter.

• inertia
• friction
• net force
• gravity

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NGSS.HS-PS2-4

Electric forces are the result of which subatomic particle(s)?

• Electrons only

• protons and electrons

• protons, electrons, and neutrons

• protons only

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NGSS.HS-PS2-4