This morning we finished working with multiple pulley systems and
levers. We calculated mechanical advantage, once again incorporating
more math into our investigations. We studied the electromagnet spectrum
and explored wave theory. we created our own waves on butcher paper
manipulating amplitude and frequency. We learned that in light energy
amplitude is light intensity and frequency produces various colors. In
sound energy amplitude is volume and frequency produces the various
pitches. Sue Sheenan stopped by to explain how participants could sign
up for field trips. At lunch we finished touring the 15th floor of
Wilson Hall.After lunch we explored other characteristics of
light energy. We reflected a laser off mirrors to demonstrate that light
travels in a straight line. We used prisms to separate light and create
a spectrum. We used light boxes to mix red, green and blue light to
make yellow, magenta and white light. Students learned that angles were
very important to creating the reflection of images. If the angle of
incidence equals the angle of reflection, we will have a perfect
reflection of an image. At the same time we realized that light reflects
off all surfaces and that the color of objects is caused by the
absorption of certain wave lengths. Finally our day concluded by taking a
field trip to the Sea quest experiment where we met scientist Josh Ruby
who explained how they were studying muons.
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