PENDULUM
Introduction
To investigate the amount of time it takes to complete one swing from points A-C.
Prediction
As a pendulum swings we give it gravitational energy.
The law of conservation of energy states that energy cannot be destroyed and it can only be changed.
As the pendulum reaches the middle of the swing, the gravitational energy changes to kinetic energy.
The drawings that I drew on the previous page show that all of the pendulums have the same gravitational energy, as they are all lifted the same height (the drawings show this by lifting up the pendulum every two lines on each drawing). It states in the law of conservation above that we can only change energy and that it cannot be destroyed this proves because the gravitational energy being the same the kinetic energy is also the same, this also proves that the pendulums are moving at the same speed during the middle of the swing.
