Science Chapter 7 Flashcards

0
Q

Reference point

A

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

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1
Q

Motion

A

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

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2
Q

International System of Units(SI)

A

A system of units used by scientists to measure the properties of matter.

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3
Q

Speed

A

The distance an object travels per unit of time.

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4
Q

The speed equation

A

Speed: distance/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

Average speed formula

A

As: total distance/ total time

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7
Q

Instantaneous speed

A

The speed of an object at one instant of time.

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8
Q

Velocity

A

Speed in a given direction.

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9
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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10
Q

Acceleration

A

Rate at which velocity changes.

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11
Q

Distance

A

Length of the path between two points.

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