In Unit One we did a lab on Pendulums and observed what kind of factors could vary our data. First of all what is a pendulum. A pendulum is a mass swinging from a string or some sort of pivot point that swings with no interference. I took a picture of Newton's Cradle which is normally used to show and represent momentum and energy. Instead of dropping one ball and allowing it to act on the others I dropped all the balls at the same time. All the balls are swinging in the same direction, at the same time, and is completing one period each time (starting and ending in the same place). There are many factors during this experiment that can vary the results. For example, how heavy the balls weighs, how high up you drop the ball (how high you pull back), and the length of the string it is hanging from. In order to get the most accurate results you need to be consistent when conducting the experiment.
Here is an example of a type of Pendulum:
http://www.youtube.com/watch?v=yVkdfJ9PkRQ
No comments:
Post a Comment