Navrachana International School Shivani Patel
Title: Bounce of Squash Ball
Date Performed: March 24th 2012
Date of Submission: April 2nd 2012
To investigate the relationship of temperature and the height of the bounce of a squash ball
Before beginning a game of squash, the players usually knock the ball around to warm it in order to improve its bounce. A squash ball is made up of two rubber halves. It contains a specific amount of compressed air. Some of this compressed air is lost when the ball comes in contact with another object (therefore, for the investigation a brand new squash ball should be used). The ball also heats up slightly on impact, and therefore the more times the ball comes in contact with another object with substantial force, the more it heats up. When the temperature of a squash ball increases, the pressure of the air inside the ball will increase according to Boyles Law. (Temperature and Pressure are directly proportional when the Volume is constant) The greater the pressure inside the ball the higher it will bounce back when it comes in contact with the ground, though it will not bounce back to its original position due to energy loss, and transformation to thermal energy because the ball is not made out of perfectly elastic material.