Specific tips on taking a physics exam?

AI Thread Summary
Familiarity with relevant equations is crucial for success on a physics exam, enabling quick identification of applicable formulas for specific problems. Drawing diagrams, such as free-body diagrams, helps visualize forces and relationships in the problem. Careful reading of the problem statement is essential, as verbal cues often contain numerical information. Understanding which equations do not apply is as important as knowing those that do. These strategies can significantly enhance problem-solving efficiency during the exam.
tnutty
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I have an exam today, a final exam. Usually I don't ask this, but its an physics exam so I will
need as much as help I could said. With that said, I was wondering if you had any specific tips on taking a physics exam? Like how to dissect a problem.
 
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Just saw your post, so this is probably too late, but here's some general advice.

  • Be familiar with all the equations you are being tested on, so that you can quickly figure out which equation or equations will apply to any particular problem. Corollary: know which equations do not apply to a given problem.

    Example: "A wire carrying a current of 2.0 A is at 90 degrees to a magnetic field of 5.0 T ..."
    In this case, realize that equations dealing with current I and magnetic field B are relevant. Moreover, equations dealing with a charge q moving at velocity v are not relevant.
  • Be able to draw a diagram to show what is going on pictorially. An example of this is using a free-body diagram to show the forces, including directions, acting on an object.
  • Read the problem carefully, so that you are aware of all information that is being given you. Sometimes purely verbal information is actually conveying numerical information. Example: "An electron ..." means "a charge with q=-1.60x10-19C and mass m= 9.11x10-31kg..."
 
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