NGSS.MS-PS2-4

Which best describes the force of gravity?

• a pulling force
• a pushing force
• a change in mass
• a change in speed

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NGSS.MS-PS2-4

As mass increases, what happens to gravitational force?

• increases
• decreases
• stays the same
• i don't know

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NGSS.MS-PS2-4

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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NGSS.MS-PS2-4

Which of the following would have the smallest gravitational attraction between the two masses?

• A
• B
• C
• D

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NGSS.MS-PS2-4

If two planets moved three times further apart, their force of attraction would

• increase
• decrease
• stay the same

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NGSS.MS-PS2-4

Which is in order from greatest to least mass?

• Universe, Sun, Galaxy, Moon
• Universe, Galaxy, Nebula, Star
• Star, Nebula, Galaxy, Universe
• Planet, Moon, Star, Solar System 

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NGSS.MS-PS2-4

The distance between objects, along with the masses of the objects, affect the gravitational force between the objects. Which statement is true according to Newton’s law of universal gravitation?

• When the masses of objects increase, gravitational force decreases.

• When distance between objects increases, gravitational force decreases.

• When distance between objects decreases, gravitational force decreases.

• When the masses of objects decrease, the distance between objects decreases.

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NGSS.MS-PS2-4

A scientific ____________ is a statement that describes what always happens under certain conditions in nature.

• law
• theory
• method
• variable

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NGSS.MS-PS2-4

When placed at equal distances apart, the greatest gravitational attraction will be between two

• skateboards

• bowling balls

• school buses

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NGSS.MS-PS2-4

How are weight, mass and g related

• W=mg

• m=Wg

• g=Wm

• m=W/g

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NGSS.MS-PS2-4