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In: Science

Submitted By sergiohpl

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Words 874

Pages 4

Jose Roque

Paul Zuniga

October 7th, 2012

Laboratory Report: Acceleration on an Incline

Purpose:

0 Use a Motion Detector to measure the speed and acceleration of a cart rolling down an incline. 1 Determine the mathematical relationship between the angle of an incline and the acceleration of the cart. 2 Determine the value of free fall acceleration, g, by extrapolating the acceleration vs. sine of track angle graph. 3 Determine if an extrapolation of the acceleration vs. sine of track angle is valid.

Materials: * Computer * Vernier computer interface. * Logger Pro. * Vernier Motion Detector. * Dynamics cart. * Meter stick. * Ramp. * Books.

Procedure:

1. Connect the Motion Detector to the DIG/SONIC 1 channel of the interface.

2. Place a single book under one end of a 1 – 3 m long board or track so that it forms a small angle with the horizontal. Adjust the points of contact of the two ends of the incline, so that the distance, x, in Figure 1 is between 1 and 3 m.

3. Place the Motion Detector at the top of an incline. Place it so the cart will never be closer than 0.4 m.

4. Open the file “04 g On An Incline” from the Physics with Vernier folder.

5. Hold the cart on the incline about 0.5 m from the Motion Detector.

6. Click to begin collecting data; release the cart after the Motion Detector starts to click. Get your hand out of the Motion Detector path quickly. You may have to adjust the position and aim of the Motion Detector several times before you get it right. Adjust and repeat this step until you get a good run showing approximately constant slope on the velocity vs. time graph during the rolling of the ball.

7. Logger Pro can fit a straight line to a portion of your data. First indicate which portion is to be used by dragging across the graph to indicate the starting and…...

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