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14 Cards in this Set
- Front
- Back
What is the acceleration due to gravity?
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9.8 mls2
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What is the mometum formula?
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p=mv
momentum=(mass) (velocity) |
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What does the size of gravitational force between 2 object depend?
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mass & distance
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What parths are always curved?
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Projectile
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What is terminal velocity?
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the highest velocity reached by a falling object
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What is Newton's 2nd law?
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It relates force, mass, and acceleration
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What is the formula for Newton 2nd law?
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formula F=ma
Force=mass x accleration |
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Why does a feather fall slower than a rock?
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Air resistance (the upward force on a falling object)
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What happens to the rock and feather when it falls without the presence of air (vacuum)?
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The rock and the feather will fall at the SAME rate.
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Why does an object moves in a circular pattern?
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When an object moves in a circular pattern, it accelerates because of CENTRIPETAL FORCE.
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As you move farther from the earth, what happens to your weight and mass?
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weight - decreases
mass- stay the same |
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What is a force that causes things to fall?
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gravity
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What Newton 3rd Law?
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Newton's 3rd Law says "to every action there is an equal and opposite reaction"
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What is an example of action reaction forces?
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a rockets gasess push down and the rocket get pushed UP.
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