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Gravity
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Terms in this set (17)
Gravity
The force that attracts all objects toward each other. The force that pulls all things on earth toward the center.
Microgravity
Very weak gravity
What two factors affect the strength of gravity between two objects?
Mass and Distance
What would happen to the strength of gravity if the distance between two objects decreased? (the objects moved closer?)
The gravity would increase because as distance decreases, gravity increases.
What would happen to the strength of gravity if the distance between the two objects increased? (the objects moved farther apart?)
The gravity would decrease because as distance increases, gravity decreases.
What happens to the strength of gravity as the mass of an object increases (object is bigger)?
Gravity increases because as mass increases, gravity increases
What happens to the strength of gravity as the mass of an object decreases (object is smaller)?
Gravity decreases because as mass decreases, gravity decreases
Center of Gravity
The point on an object where weight is equal on both sides and gravitational pull is equal on both sides.
Explain what would happen if gravity did not exist between the sun and the earth or the earth and the moon.
If gravity did not exist between the sun and earth, the earth would drift off into space. If gravity did not exist between the sun and the moon, the moon would drift off into space
Which planet has the strongest gravitational attraction to the sun?
Mercury
Which planet has the weakest gravitational attraction to the sun?
Neptune
Which planet has the strongest gravity?
Jupiter
Which planet has the weakest gravity?
Mercury
Why does Mercury have the strongest attraction to the sun?
Mercury is the closest to the sun and as distance decreases, gravity increases
Why does Neptune have the weakest attraction to the sun?
Neptune is the farthest planet from the sun and as distance increases, gravity decreases
Why does Jupiter have the strongest gravity?
Jupiter is the largest planet and as mass increases, gravity increases
Why does Mercury have the weakest gravity?
Mercury is the smallest planet and as mass decreases, gravity decreases
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