How does the mass of a ball affect the bounce height after the first bounce Names Jay Goenka Jun Tcheng Terence Zeng Maxwell Lindsey Physics 211 Lab 1 Objective Variables Procedure Independent Mass of the ball g Dependent Height of first bounce Control Dropped from the same height Set a ruler perpendicular to the floor Measure the mass of the ball Set the bottom of the ball to the height of 35 inches Drop the ball ensuring no force is exerted while dropping Measure the maximum height achieved after the ball bounces once Add mass to the ball by taping a bolt onto the ball Measure the mass of the ball Drop the ball from a height of 35 inches ensuring that the bolt is directly on top of the ball to minimize spin Repeat for increased mass Data Collection Processing Mass of the Ball Trial 1 inches 42g 47g 52g 27 26 9 26 5 Trial 2 inches Average inches 27 5 26 7 26 5 27 25 26 8 26 5 Points to consider The ruler could be bent at times while measuring The ball had a slight spin when mass was attached to it Conclusion In this lab we conducted experiments which involved dropping balls of varying masses and measuring the height that they reached after the first bounce We noticed that although the heights attained were consistent they decreased slightly as more mass was added to the ball It could be a useful point to consider why this is the case the height could have decreased due to air resistance or loss of elasticity in the collision
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