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CH 9 SEC 1. DESCRIBING MOTION. GOAL/PURPOSE. IN THIS SECTION STUDENTS LEARN HOW TO DESCRIBE MOTION USING TERMS DISTANCE, DISPLACEMENT, SPEED, VELOCITY, AND ACCELERATION. YOU WILL ALSO LEARN HOW TO INTERPRET GRAPH OF MOTION. MOTION.

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## CH 9 SEC 1

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**CH 9 SEC 1**DESCRIBING MOTION**GOAL/PURPOSE**• IN THIS SECTION STUDENTS LEARN HOW TO DESCRIBE MOTION USING TERMS DISTANCE, DISPLACEMENT, • SPEED, VELOCITY, AND ACCELERATION. • YOU WILL ALSO LEARN HOW TO INTERPRET GRAPH OF MOTION**MOTION**• KEY- AN OBJECT IS IN MOTIONIF ITS DISTANCE FROM ANOTHER OBJECT IS CHANGING. • REFERENCE POINT- IS PLACE OR OBJECT USED FOR COMPARISON TO DETERMINE IF SOMETHING IS MOVING. • KEY- AN OBJECT IS IN MOTION IF IT CHANGES POSITION RELATIVE TO A REFERENCE POINT**Relative motion**• KEY- DEPENDS ON YOUR REFERENCE POINT. SITTING IN CHAIR NOT MOVING BUT IF YOU USE THE SUN AS A REFERENCE POINT YOU ARE MOVING. • DISTANCE- IS THE LENGTH OF A PATH BETWEEN 2 POINTS. • EX- WALKING HOME FROM SCHOOL • DISPLACEMENT- IS THE LENGTH AND DIRECTION THAT AN OBJECT HAS MOVED FROM ITS STARTING POINT • EX- AS THE CROW FLIES???? THE STRAIGHT LINE**KEY- distance is the total length of the actual path between**2 points. Displacement is the length and direction of a straight line between starting and ending points**Q and A**• 1 abc • 2 abc • bingobangobongo

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