Newton's Universal Law of Gravitation

What does the variable G in the gravitational force equation represent? $F_g\ =\ G\ \frac{m_1\ m_2}{r^2}$  

• Universal gravitational constant

• Combined masses of the two objects

• Gravitational force

• Dielectric constant

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Which of the following is Newton's Law on Gravitation?

• F=Gm₁m₂/r
• F = Gm₁m₂/r²
• F = Gm₁m₂/2r
• F = m₁m₂/2r

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Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass

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Force of gravity is directly proportional to

• Mass
• Weight
• Distance
• Time

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Force of gravity is inversely proportional to

• Mass
• Weight
• Distance
• Time

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If Earth's mass was cut in half, what would happen to your mass?

• increase because gravitational force increases
• decrease because gravitational force decreases
• decrease because gravitational force increases
• nothing, mass is not affected by gravitational force

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Gravity attracts all objects towards one another.

• False
• True
• It depends

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NGSS.HS-PS2-4

Two spherical objects have masses of 8000 kg and 1500 kg. Their centers are separated by a distance of 1.5 m. Find the gravitational attraction between them

• 5.4 X 10^-4 N

• 1.2 X 10⁷ N

• 3.6 X 10^-4 N

• 5.33 N

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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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Two asteroids exert a gravitational force, F, on each other. Some time later, the asteroids are now three times as far from each other as before. Which of the following represents the gravitational force at this distance? 

• F/3
• F/2
• F/6
• F/9

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