How Kinetic And Potential Energy And Verify The Law Of Conservation Of Energy

725 Words Nov 3rd, 2016 3 Pages
The purpose of this experiment was to understand kinetic and potential energy and verify the Law of Conservation of Energy. Kinetic and potential energy are both forms of energy that usually coincide with each other; potential energy usually changes into kinetic energy and vice versa. While potential energy results from an object’s position or arrangement of parts, kinetic energy results from an object’s motion. Together, the sum of an object’s kinetic energy and the potential energy at that instant is its total mechanical energy, which is given as: ME = PE + KE. In order to verify that the total mechanical energy if the system is conserved, the change in the mechanical energy of the system have to be zero. Two experiments were performed with different set-ups to test if energy was conserved in each system. In the first experiment, a projectile launcher was used to launch the object, a ball, vertically upwards. The computer program, LoggerPro, will determine the initial velocity of the ball. If the starting point is the point where the ball is launched, then the potential energy is equal to zero and thus, the initial kinetic energy would then be KEi = (1/2) mvi2. When the ball reaches its highest point, its final speed at the highest point is zero and the total mechanical energy at the highest point will be PE=mgh, where g is the gravitational force. Similarly in the second experiment, the air track will caused the glider move down the track and LoggerPro will obtain its…

Related Documents