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Flashcards in Science Chapter 7 Deck (12)
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Motion

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

1

Reference point

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

2

International System of Units(SI)

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

3

Speed

The distance an object travels per unit of time.

4

The speed equation

Speed: distance/Time

5

Average speed

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

6

Average speed formula

As: total distance/ total time

7

Instantaneous speed

The speed of an object at one instant of time.

8

Velocity

Speed in a given direction.

9

Slope

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

10

Acceleration

Rate at which velocity changes.

11

Distance

Length of the path between two points.