Mr. B's Physics Web Site             

San Marcos High School, Home of the ROYALS!

Center of Gravity Lab

Students investigated center of gravity by determining where their center of gravity is and comparing their data with the rest of the class and with the opposite gender. This was accomplished by holding a push up position on two scales, then using simple mathematics to locate their center of gravity as a percentage of their total body height. Students then set about explaining the differences between the genders and why females can pick up chairs when their heads rest against a wall and tip over a cup from the hunker down position. Click on button at left to view photos of students.

Spectroscopy Lab

In this lab students identified the spectra (colors of light that correspond to different wavelengths) given off by different elements. This information is useful to astronomers who wish to study distant stars and solar systems yet have no way of reaching them. The light each star or solar system gives off indicates the elements present as each element has a characteristic "fingerprint", or spectra of light that only it emits when exposed to high temperatures. Click on button at left to view photos of students.

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Last modified: August 26, 2007