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Published byCornelia Moody Modified over 9 years ago
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NOTES #6 GRAPHING MOTION Eq : what can a distance /time graph show you?
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1. WHAT DOES THE SLOPE OF A LINE SHOW? Slope= steepness of the line Steeper slope = greater speed The line represents the SPEED OF THE OBJECT FASTER SLOWER
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2. HOW DO YOU CALCULATE SLOPE? FIND THE RISE
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2. HOW DO YOU CALCULATE SLOPE? Find THE RISE (Y) AND DIVIDE BY THE RUN (X)
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2. HOW DO YOU CALCULATE SLOPE? SLOPE = RISE RUN THEREFORE: SLOPE = DISTANCE TIME RISE RUN SLOPE = SPEED
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2. HOW DO YOU CALCULATE SLOPE? LET’S PRACTICE 1.PICK ANY POINT 2.FIND THE “RISE” 3.DIVIDE BY THE “RUN” 15m 3s SLOPE = 5 m/s
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3. WHAT IS THE PURPOSE OF A DISTANCE-TIME GRAPH? (COPY THE DATA TABLE) Turtle’s Position and Time TOTAL TIME (SEC)TOTAL DISTANCE (CM) 00 2040 80 60120 80160
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3. WHAT IS THE PURPOSE OF A DISTANCE-TIME GRAPH? D/T GRAPHS SHOW MOTION OF OBJECTS SPEED IS CONSTANT 0 20 40 60 80 160 120 80 40 TIME (SEC) D I S T A N C E (CM) (SKETCH THIS GRAPH)
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3. WHAT IS THE PURPOSE OF A DISTANCE-TIME GRAPH? USE RISE/RUN (D/T) TO FIND THE SPEED OF THE OBJECT 0 20 40 60 80 160 120 80 40 TIME (SEC) D I S T A N C E (CM)
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4. WHAT CAN A POSITION-TIME GRAPH TELL YOU ABOUT SPEED? NOT MOVING MOVING BACK TOWARD START MOVING AWAY AND ACCELERATING
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4. WHAT CAN A POSITION-TIME GRAPH TELL YOU? (MAKE A T-CHART )
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4. WHAT CAN A POSITION-TIME GRAPH TELL YOU? CONSTANT SPEED AWAY FROM START.
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4. WHAT CAN A POSITION-TIME GRAPH TELL YOU? CONSTANT SPEED BACK TOWARD STARTING POINT.
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4. WHAT CAN A DISTANCE-TIME GRAPH TELL YOU? ACCELERATING AWAY FROM START
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4. WHAT CAN A POSITION-TIME GRAPH TELL YOU? 1.CONSTANT VELOCITY AWAY 2. NO MOTION 3. CONSTANT VELOCITY BACK TOWARD START 1 2 3
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5. WHAT IS THE PURPOSE OF A VELOCITY-TIME GRAPH? V E L O C I T Y (m/s) TIME (s) VELOCITY-TME GRAPHS SHOW THE ACCELERATION OF AN OBJECT, OR HOW ITS SPEED CHANGES OVER TIME
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5. WHAT IS THE PURPOSE OF A VELOCITY-TIME GRAPH? Copy the data table and fill in the missing velocities Turtle’s Position, Time, and Velocity DISTANCE (m)TIME (s)VELOCITY (m/s) 00 4020 8040 12060 16080
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5. WHAT IS THE PURPOSE OF A VELOCITY-TIME GRAPH? Turtle’s Position, Time, and Velocity DISTANCE (m)TIME (s)VELOCITY (m/s) 000 40202 80402 120602 160802
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5. WHAT IS THE PURPOSE OF A VELOCITY-TIME GRAPH? Plot the points on a velocity-time graph. Turtle’s Position, Time, and Velocity DISTANCE (m)TIME (s)VELOCITY (m/s) 000 40202 80402 120602 160802
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5. WHAT IS THE PURPOSE OF A VELOCITY-TIME GRAPH? VELOCITY IS CONSTANT 0 20 40 60 80 43214321 TIME (SEC) V E L O C I T Y (m/s) SLOPE =rise = run THEREFORE… SLOPE =ACCELERATION 0_ =0 20
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REMEMBER… A.POSITION-TME GRAPHS COMPARE THE MOTIONS AND SPEEDS OF OBJECTS VELOCITY IS CONSTANT 0 20 40 60 80 160 120 80 40 TIME (SEC) D I S T A N C E (CM)
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POSITION-TME GRAPHS COMPARE THE MOTIONS AND SPEEDS OF OBJECTS VELOCITY-TME GRAPHS COMPARE THE MOTION AND ACCELERATION OF OBJECTS
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6. WHAT CAN A VELOCITY-TIME GRAPH TELL YOU?
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OBJECT SPEEDING UP (ACCELERATION)
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6. WHAT CAN A VELOCITY-TIME GRAPH TELL YOU? Object is slowing down (decelerating)
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6. WHAT CAN A VELOCITY-TIME GRAPH TELL YOU? velocity is constant.
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6. WHAT CAN A VELOCITY-TIME GRAPH TELL YOU? Velocity is zero. Object is at rest
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6. WHAT CAN A VELOCITY-TIME GRAPH TELL YOU?
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COMPARING P/T GRAPHS TO V/T GRAPHS TYPE OF MOTIONPOSITION/TIME GRAPH (SPEED) VELOCITY/TIME GRAPH (ACCELERATION) OBJECT AT REST (NO MOTION) OBJECT MOVING AT CONSTANT SPEED OBJECT SPEEDING UP OBJECT SLOWING DOWN
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COMPARING P/T GRAPHS TO V/T GRAPHS TYPE OF MOTIONPOSITION/TIME GRAPH (SPEED) VELOCITY/TIME GRAPH (ACCELERATION) OBJECT AT REST (NO MOTION)
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COMPARING P/T GRAPHS TO V/T GRAPHS TYPE OF MOTIONPOSITION/TIME GRAPH (SPEED) VELOCITY/TIME GRAPH (ACCELERATION) OBJECT AT REST (NO MOTION) F E D A B C
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COMPARING P/T GRAPHS TO V/T GRAPHS TYPE OF MOTIONPOSITION/TIME GRAPH (SPEED) VELOCITY/TIME GRAPH (ACCELERATION) OBJECT AT REST (NO MOTION) F E D A B C
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COMPARING P/T GRAPHS TO V/T GRAPHS F E D A B C TYPE OF MOTIONPOSITION/TIME GRAPH (SPEED) VELOCITY/TIME GRAPH (ACCELERATION) OBJECT MOVING AT CONSTANT SPEED
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COMPARING P/T GRAPHS TO V/T GRAPHS F E D A B C TYPE OF MOTIONPOSITION/TIME GRAPH (SPEED) VELOCITY/TIME GRAPH (ACCELERATION) OBJECT SPEEDING UP
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COMPARING P/T GRAPHS TO V/T GRAPHS F E D A B C TYPE OF MOTIONPOSITION/TIME GRAPH (SPEED) VELOCITY/TIME GRAPH (ACCELERATION) OBJECT SLOWING DOWN
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