When a ball bounces on a surface such as the floor, it exhibits a behavior such that successive bounces occur closer and closer together in time, and the height of successive bounces grows smaller and smaller. This same pattern can be seen when a laboratory cart equipped with a spring plunger rolls down an inclined plane and collides with a fixed barrier, or when an air track glider on an incline strikes an elastic barrier.
Four questions come to mind during any of these occurrences, and these furnish the purposes for this lab.
B) What is the mathematical relationship which matches the heights of the bounces of your object?
C) What is the mathematical relationship which matches the times for subsequent bounces with the number of the bounce?
D) How are the times for the bounces related to the heights of the bounces? Explain.
Graphs & Calculations
Discussion of Results, Analysis & Conclusions
|You will release a ball from a position near the floor, table top, etc. Track its motion as it bounces off the surface.|
1 = A & B
2 = A & C
3 = A & D
4 = A & B
|You will release a lab cart from a position near the top of an inclined plane. Track its motion as it bounces off of a fixed object at the bottom.|
5 = A & C
6 = A & D
7 = A & B
8 = A & C
|You will release an air track glider from a position near the top of an inclined track. Graph its motion as it bounces off of a fixed elastic object at the bottom.|
9 = A & B
10 = A & C