Flashcards in Science Chapter 7 Deck (12)

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## Motion

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

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## Reference point

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

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## International System of Units(SI)

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

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## Speed

### The distance an object travels per unit of time.

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## The speed equation

### Speed: distance/Time

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## 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.

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## Average speed formula

### As: total distance/ total time

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## Instantaneous speed

### The speed of an object at one instant of time.

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## Velocity

### Speed in a given direction.

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## Slope

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

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## Acceleration

### Rate at which velocity changes.

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