LVang+-+L4+-+Physlets+Lab

Lue Vang Mr. Kellogg AP Physics - Pd. 7 23 September 2011 Performed On: 23 September 2011 **Physlets 2.2 mini-Lab** > Graph B is not correct because the first part of the graph had a steeper part than the second part, which says the ball slowed down in the second half. This is false because in actuality, the ball sped up in the second part of its journey; thus Graph B is incorrect. > Graph C is incorrect because there is a sudden "jump" in the middle which signifies that the ball has had a major increase in speed or that the ball teleported. Either of the situations are supported by the actual movement of the ball like which is stated in question 1; thus Graph C is also wrong. Moreover, Graph C says that, after the jump, the ball returned to its original velocity. This too is false because the speed of the ball in the second half of the display increased: it did not stay constant. > Graph E is incorrect because it indicates that the ball is constantly accelerating, which it didn't. In actuality, the ball only accelerated once, but stays at a two constant velocity before and after the sudden acceleration. The constant velocity should then be represented as straight lines, which are absent from Graph E. > Graph F is also incorrect because it indicates that the ball is moving at a constant velocity, but later accelerates at a constant rate. This is false because the ball only accelerates once. After that, it retains the velocity until the end: it does not continue to speed up as indicated in Graph F.
 * 1) According to the "Ball Only" animation, the ball moves at a constant velocity until 0.80 seconds; then it speeds up afterwards and stays at that new velocity until the end.
 * 2) Graph A is the correct one.
 * 1) Graph D is the correct one.