Name Mrs. Kalscheur’s Answer Key Date Pd

[Pages:5]Name Mrs. Kalscheur's Answer Key

Date

Pd

Constant Velocity Particle Model Ultrasonic Motion Detector Lab:

Multiple Representations of Motion

Do the following for each of the situations below:

a. Move, relative to the motion detector, so that you produce a position vs. time graph that closely approximates the graph shown.

b. In the space provided, describe how you must move in order to produce the position vs. time graph shown in the space to the right of the velocity vs. time graph. Be sure to include each of the following in your description: starting position, direction moved, type of motion, relative speed.

c. On the velocity vs. time axes, sketch the velocity vs. time graph that corresponds to the position vs. time graph shown.

d. In the space provided, sketch the motion map that corresponds to the motion described in the position vs. time graph.

1. Written description: Johnny is at school sitting at his desk. (He is not at the point of origin, nor is he in motion. He is resting at 4 meters.) THE OBJECT STAYED AT REST AT A POSITIVE (+) POSITION.

m

position

Motion map

0

time

0

time

?Modeling Instruction -AMTA 2013

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U2 Constant Velocity ? motion detector lab v3

2. Written description: Johnny starts a little closer to home but is quickly traveling away from home in a positive direction. (He is not at the point of origin, but is positively accelerating from 2 meters.) THE OBJECT IS MOVING AT A CONSTANT VELOCITY IN A POSITIVE (+) DIRECTION.

m

position

Motion map

0

time

0

time

velocity

3. Written description: Johnny is at school and is walking home at a moderate rate. (He is not at the point of origin and is negatively accelerating towards home beginning at 4 meters. ) THE OBJECT IS MOVING AT A CONSTANT VELOCITY IN A NEGATIVE (-) DIRECTION. m

Motion map

position

0

time

0

time

velocity

?Modeling Instruction -AMTA 2013

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U2 Constant Velocity ? motion detector lab v3

4. Written description: Johnny leaves his house for his daily run to the park. Once he gets to the park, he sits on the bench to catch his breath (His run is at a rapid positive acceleration from the point of origin to 3 meters and then he rests). THE OBJECT IS MOVING AT A CONSTANT VELOCITY IN A POSITIVE (+) DIRECTION AND THEN RESTS.

m

position

Motion map

0

time

0

time

velocity

5. Written description: Johnny leaves the mall and runs to the park. Once he gets to the park, he sits on the bench to catch his breath (His run is at a rapid negative acceleration from 5 meters to 3 meters, where he then rests). THE OBJECT IS MOVING AT A CONSTANT VELOCITY IN A NEGATIVE (-) DIRECTION AND THEN RESTS.

m

position

Motion map

0

time

0

time

velocity

?Modeling Instruction -AMTA 2013

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U2 Constant Velocity ? motion detector lab v3

6. Written description: Johnny walks to the end of the street and then runs to the park. (His walk is at a moderate positive acceleration and he begins running at 2 meters with rapid positive acceleration). THE OBJECT IS MOVING AT A CONSTANT VELOCITY IN A POSITIVE (+) DIRECTION AND CHANGES TO QUICKER VELOCITY IN A POSITIVE (+) DIRECTION AT 2 METERS

m

position

Motion map

0

time

0

velocity

time

7. Written description: Johnny is at the park and walks to his friend's house where he watches television. Johnny's mother calls and he runs home. (His walk begins at 2 meters at a moderate positive acceleration to 3 meters where he rests. He then runs with rapid positive acceleration to the origin.) THE OBJECT IS MOVING AT A CONSTANT VELOCITY IN A POSITIVE (+) DIRECTION, RESTS, THEN MOVES AT A CONSTANT VELOCITY IN A NEGATIVE (-) DIRECTION.

m

position

Motion map

0

time

0

time

?Modeling Instruction -AMTA 2013

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U2 Constant Velocity ? motion detector lab v3

velocity

8. Written description: Johnny is at the park and runs to his Aunt Lilly's house where he eats lunch. Johnny then walks to Grandma Mylie's house. (His runs begins at 3 meters at a rapidly negative acceleration to 1 meters where he rests. He then walks with moderate positive acceleration to 2 meters.) THE OBJECT IS MOVING AT A CONSTANT VELOCITY IN A NEGATIVE (-) DIRECTION, RESTS, THEN MOVES AT A CONSTANT VELOCITY IN A POSITIVE (+) DIRECTION.

m

Motion map

0

time

0

time

position

velocity

?Modeling Instruction -AMTA 2013

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U2 Constant Velocity ? motion detector lab v3

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