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Cart on a Ramp

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Cart on a Ramp
Objectives: To learn about motion through studying and matching graphs of position vs. time and velocity vs. time; to develop an understanding of the concepts of kinematics. Predict, sketch, and test motion graphs to better understand motion.

Equipment: Computer Vernier computer interface Logger Pro Vernier Motion Detector Meter stick Masking tape

Preliminary Questions:
1a.
The pink line shows the position of an object at rest with respect to time.
POSITION

TIME

1b. The pink line shows the position of an object moving in the positive direction at constant speed with respect to time.
POSITION

TIME

POSITION 1c. The pink line shows the position of an object moving in the negative direction at constant speed with respect to time.

TIME

POSITION
1d.
The pink line shows the object accelerating at a constant, steady speed. The blue line shows an object that is accelerating at a less constant speed, slowly at first, then increasing speed.
TIME

2a. The pink line is on the x-axis (zero) with respect to time because velocity is zero when an object is at rest. VELOCITY

TIME

VELOCITY
2b.
The pink line is at ¾ position because that is the slope of the graph of 1b. above. The line is flat because of constant speed.

TIME

VELOCITY

2c. The pink line is at – ¾ because that is the slope of the graph of 1c. above.
TIME

2d.

VELOCITY The pink line shows the velocity with respect to time of the of the pink line from graph 1d.
TIME

Procedure: Part I 1. We obtained all the materials necessary for this lab and assembled them: we taped off four one-meter increments, connected the motion detector to the interface to the computer, and opened Logger Pro. 2. We then placed the motion detector on the tabletop, facing the four-meter open

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