Gettysburg College
Physics Department

  
STUDENT HANDBOOK
  Introduction: The Study of Physics
   


   
"The most important thing is not any one particular piece, but finding enough pieces and enough connections between them to recognize the whole picture."   -Christiane Nusslein-Volhard

"I know of nothing else but miracles...
Every cubic inch of space is a miracle..." 
                                                        -Walt Whitman

 

Physics is the most basic of the sciences, dealing with the structure of matter, energy in all its forms, and the interrelationships between matter and energy.  It is the study of the fundamentals of everything in the universe. If you look around you and start asking questions such as why does that happen or how does that work, and if you probe into those questions to get to the root causes, you will be studying physics.

Obviously, there is a difference between a human being and a stone. Humans, endowed with constant, immanent movement, possess consciousness, are aware of the world around them, can love and feel pain, and, most significantly, can communicate these qualities to others. A stone, of course, cannot. Still, both are part of a vast natural universe governed by the same set of physical laws. It is the study of these physical laws, the attempt to understand what animate and inanimate objects have in common, what and how we share, that is the field of physics. The physical universe is a vast domain, but the underlying principles governing its behavior are not numerous. As you study physics at Gettysburg College, you will begin to understand that all the changes we observe in nature are ultimately driven by just a few fundamental forces, forces which act in comprehensible and predictable fashion.

The details of what these forces are and how they act cannot be understood at once, even in a concentrated four-year course of study. It is, indeed, a lifetime pursuit. The basic ideas of physics, however, are all contained in some of the first courses you will take at Gettysburg. Mechanics, the study of how bodies move, is the starting point; electricity and magnetism examine one of the strongest and most important forces of nature; the study of vibrations and waves will investigate the behavior of sound and light and fundamental forms of energy; and the studies of atomic and nuclear physics and relativity will examine the universe at the scale of the very small and the very large. You may also want to take courses that apply fundamental physical principles to the understanding of complex technology, such as microprocessor electronics, lasers, and fiber optics.


Physics is not learned just in the classroom: careful observation of and insight into nature, experience and experimentation, are as much a part of a physicist's training as are class attendance and reading. Laboratories associated with physics courses will give "hands-on" experience with the phenomena physicists study and with the tools we use.

Finally, a firm understanding of the physical universe cannot be obtained without an ability to speak the language of physics - mathematics. While there have been a few great physicists, the genius Michael Faraday to note one, who did not have or need formal training in mathematics, few of us would be able to function without it. Training in and understanding of mathematics makes it possible to comprehend the workings of nature. Believe it or not, as you proceed through the curriculum at Gettysburg College, you will see that the courses in the "higher", more complex fields of mathematics actually simplify things.

While there is no doubt that physics is a demanding major, it is a very intriguing, invaluable one, as well. If the satisfaction of meeting intellectual challenges appeals to you, if you are excited by the possibilities in opening up new areas of experience and knowledge, then you will surely appreciate having made physics your major field of study.

"We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special."  -Stephen Hawking

 

Back to Guide to Physics

 

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