Physics Lab write up 6

Next part of the experiment the student will

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). Next part of the experiment the student will determine s A and s B by setting the other steel ball in the first dimple on the collision plate. The student should notice where the balls land and place the carbon papers accordingly. Next they should do 5 trials and then following the instructions above draw the lines that represent s A and s B. Record the length of the lines and angles between s A and s B and between s A and s, and between s and s B . Label the patterns s 1 and s 2 . Next the students will repeat the experiment with the target placed in the second dimple and then labeling the patterns s 3 and s 4 . Next repeat for a collision in which a hollow ball is the target and labeling the patterns s 5 and s 6 . Useful information would be . Then in order for the students to do the report they must add the

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vectors s A and s B for each collision involving two balls, either graphically or analytically and compare the result to the initial vector ( s ). Then the student will do the same for the glass-steel collision only the measured vector s B must be reduced by a factor of 1/3.3. Why? (Answered under question portion). Next the student should give a percent error between the X-components for each trial and ( s ), the representative of the total momentum. Lastly the student will give a percent error between the angles [( s 1 and s 2 ), ( s 3 and s 4 )] of the first two trials, which for ours was .82% difference and (the steel balls), compared to the ideal angle of 90 degrees, which ours was 5.65%. Unfamiliar Terms : Momentum: The quantity of motion of a moving body, measured as a product of its mass and velocity ( ) Conservation of momentum: the principle that the total linear or angular momentum in any isolated system is constant, provided that no external force is applied( ) Collision:
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