Bounce Efficiency
The bounce efficiency of a tennis ball is calculated by using the two heights of the ball, one, at the max height of the ball before the bounce, and second, after the bounce. Using the gravitational potential energy at both heights one can identify the bounce efficiency. using the max height as the initial energy and the rebound height as the final energy you can solve for the efficiency. the efficiency of the ball is expected to be lower than the initial energy as some energy is lost through thermal and sound energy.
Below is my efficiency calculation for my expirement.
Specific Heat Capacity
The specific heat capacity is the amount of heat energy needed to increase the temperature of 1kg of a particular substance by 1 C. To determine the heat capacity you need the mass of the object the specific heat capacity and the temperature change. Although in this circumstance I will be solving for the temperature change. Through my online research I was able to determine the heat capacity of my rubber substance in the ball. The temperature change is between before and after the ball bounces
To the left is my temperature change calculation and it is assumed that all mechanical energy turns into heat energy
This moving image demontstrates how the ball bounces.
Kinetic Energy
Heat Energy
Sound Energy
Waste
Gravitational Potential Energy
Usefull
