Activity 1 In the following video, a ball is dropped while its vertical position, kinetic energy, gravitational potentia

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Activity 1 In The Following Video A Ball Is Dropped While Its Vertical Position Kinetic Energy Gravitational Potentia 1 (67.89 KiB) Viewed 35 times

Activity 1 In the following video, a ball is dropped while its vertical position, kinetic energy, gravitational potential energy, and total mechanical energy are measured by using a motion detector placed on the floor. Dropped Ball The results are shown in the figure below. The ball was held about 1.5 meter above the floor and dropped at about 0.4 seconds. Figure 1, Position and grovitotional potential energy of a dropped ball Question 1-1 (2 points): Do the two graphs look similar? Explain. Question 1-2 (2 points): Based on the similarity of two graphs, what can you tell about the relationship between the height of the ball and its gravitational potential energy? Explain. Question 1-3 (2 points): Gravitational potential energy is always measured with respect to a particular height where its value is defined to be zero. In this case what has been chosen as the reference level? In other words, for what location of the ball would its gravitational potential energy be zero? (Hint: Where is the motion detector located?) Prediction 1-1: As the ball falls, how will the kinetic energy change? How will the gravitational potential energy change? How will the mechanical energy change?