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 Flashcards Matching Hangman Crossword Type In Quiz Test StudyStack Study Table Bug Match Hungry Bug Unscramble Chopped Targets

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# chap 3 less 1-3

TermDefinition
Motion Its position changes relative to another object.
Reference point A place or object used for comparison to determine if something is in motion.
When is an object in motion? If it changes position relative to a reference point.
International system of distance. The length of the path between two points.
Speed The distance the object moves per unit of time.
How do you calculate speed? Divide the distance the object travels by the amount of time it takes to travel that distance.
Average speed Divide the total distance traveled by the total time.
Instantaneous speed The speed at which an object is moving at a given instant in time.
How do you describe velocity? When you know both the speed and direction of an object's motion.
Velocity Speed in a given direction.
How do you graph motion? A line graph in which you plot distance versus time.
Slope The steepness of a line on a line graph.
Acceleration The rate at which velocity changes.
What is acceleration? Increasing speed, decreasing speed, or changing direction.
Created by: kwinkler