Motion Flashcards

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0
Q

SI

A

A system of measurement based on multiples of ten and on established measures of mass, length, and time.

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1
Q

Reference point

A

A place or object used for comparison to determine if an object is in motion.

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2
Q

Distance

A

The length of the path between two points.

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3
Q

Motion

A

The state in which one object’s distance from another is changing.

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4
Q

Speed

A

The distance an object travels per unit of time.

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5
Q

Average speed

A

The overall rate of speed at which an object moves; calculated by dividing the total distance an object travels by the total time.

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6
Q

Instantaneous speed

A

The speed of an object at one instant of time.

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7
Q

Velocity

A

Speed in a given direction.

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8
Q

Slope

A

The steepness of a graph line; the ratio of the vertical change (the rise) to the horizontal change (the run).

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9
Q

Acceleration

A

The rate at which velocity changes.

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