Laws of Gravitational Force

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

• Law of Universal Gravitation

• Newton's First Law of Motion

• Opposites attract

• Inertia & gravity

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NGSS.HS-PS2-4

Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.

• 2.96x10^-7N

• 3.00x10^-6N

• 2.22x10^-9N

• 2.23x10^-8N

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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

What two factors effect the magnitude of the force of gravity between objects are...

• mass and distance

• mass and matter

• distance and weight

• weight and mass

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NGSS.HS-PS2-4

Gravity attracts all objects towards one another.

• False
• True
• It depends

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NGSS.HS-PS2-4

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

• more
• same
• dosen't matter
• less

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NGSS.HS-PS2-4

Which configuration will result in the greatest gravitational force?

• small masses far apart

• large masses far apart

• small masses close together

• large masses close together

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NGSS.HS-PS2-4

What happens to gravitational force between two object if both masses are doubled?

• doubles

• half as big

• 4x bigger

• 4x smaller

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NGSS.HS-PS2-4

How is the gravitational force between two objects related to their masses?

• They are directly proportional

• They are inversely proportional

• They do not affect each other

• They are equal to each other

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NGSS.HS-PS2-4

A 500 kg asteroid is located 3.4 x10⁷m from the center of Earth. The mass of Earth is 6.0x10²⁴ kg. What is the gravitational force between the asteroid and Earth?

F = GMm/r²

G= 6.67 x 10^-11

• 1.73 x 10² N

• 4.63 x 10⁵ N

• 2.94 x 10³ N

• 6.42 x 10⁴ N

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NGSS.HS-PS2-4