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Related Flashcards
Related Topics
Cards In This Set
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Speed
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How far something will go in a certain amount of time
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Velocity
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Speed and direction
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Acceleration
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If velocity changes in any way, whether in speed or direction
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Mass
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The amount of matter in something
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Weight
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The FORCE on a scale measures when you stand on it; weight depends on both mass and the forces acting on your mass.
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Force
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Anything that can cause a change in momentum
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What is the difference between speed and velocity?
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Speed is how far an object will go in a certain amount of time, and velocity is the SPEED and DIRECTION of an object.
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If you are accelerating, what does it imply about your speed or velocity?
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It means that your velocity is changing in anyway; in speed or direction or both
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How is mass different than weight?
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Your mass remains constant, but weight can vary based on the outside forces acting on your mass.
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How are mass and weight affected by where you are located?
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Your mass is the same wherever you are, but your weight can vary.
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Inertia (law of)
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An object moves at a constant velocity unless a net force acts to change its speed or direction.
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How did Newton change our understanding of how the universe works?
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Realized the same forces acting on earth act also in the heavens - creating one universe
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How was Newton's understanding of motion different than the ancient Greek's?
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Aristotle had made many claims about the physics of motion, using his ideas to support his belief in an Earth-centered cosmos. Heavens were distinct from earth. Newton's insight eliminated Aristotle's distinction between the two realms.
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Newton's 1st law of motion?
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An object moves at a constant velocity unless a net force acts to change its speed or direction.
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Newton's 2nd law of motion?
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Force = mass x acceleration
The amount of acceleration depends on the object's mass and the strength of the net force. |
