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fandomhigh2005-12-09 09:15 am
equalsmcsquared.livejournal.com) wrote in fandomhigh2005-12-09 09:15 am
Entry tags:
Physics
I'm passing around a study guide for the final exam. That will take place next Friday here.
Today, we will be briefly discussing and performing an experiment on refraction.
Refraction produces optical illusions.
Ever reached down into the bath tub water to grab a toy and found that it was not in the position it appeared to be? What you are experiencing is the effect called refraction (the bending of a wave path, as of light or sound, at the boundary between two different mediums) . When light enters the water (or any transparent material) it slows down slightly. If the light enters the water at an angle then this change in speed causes the light beam to bend away from its original path. This is called refraction.
Refraction experiments are based on the times of arrival of the initial ground movement generated by a source recorded at a variety of distances. Later-arriving complications in the recorded ground motion are discarded. Thus, the data set derived from refraction experiments consists of a series of times versus distances. These are then interpreted in terms of the depths to subsurface interfaces and the speeds at which motion travels through the subsurface within each layer. These speeds are controlled by a set of physical constants, called elastic parameters that describe the material.
Now, please complete the experiment listed. You may leave when you are finished.
Today, we will be briefly discussing and performing an experiment on refraction.
Refraction produces optical illusions.
Ever reached down into the bath tub water to grab a toy and found that it was not in the position it appeared to be? What you are experiencing is the effect called refraction (the bending of a wave path, as of light or sound, at the boundary between two different mediums) . When light enters the water (or any transparent material) it slows down slightly. If the light enters the water at an angle then this change in speed causes the light beam to bend away from its original path. This is called refraction.
Refraction experiments are based on the times of arrival of the initial ground movement generated by a source recorded at a variety of distances. Later-arriving complications in the recorded ground motion are discarded. Thus, the data set derived from refraction experiments consists of a series of times versus distances. These are then interpreted in terms of the depths to subsurface interfaces and the speeds at which motion travels through the subsurface within each layer. These speeds are controlled by a set of physical constants, called elastic parameters that describe the material.
Now, please complete the experiment listed. You may leave when you are finished.
no subject