Relative speed of sound in solids, liquids, and gases Questions will focus on the topics as they are described in the narrative for the content category. Please note topics that appear on multiple content lists will be treated differently. PHY = two-semester sequence of introductory physics OC = two-semester sequence of organic chemistry GC = two-semester sequence of general chemistry The abbreviations found in parentheses indicate the course(s) in which undergraduate students at many colleges and universities learn about the topics and associated subtopics. The content in this category covers the properties of both light and sound and how these energy waves interact with matter. This non-invasive technique readily locates dense subcutaneous structures, such as bone and cartilage, and is very useful in diagnostic medicine. The detection of reflected sound waves is utilized in ultrasound imaging. Sound waves are audible if the sensory elements of the ear vibrate in response to exposure to these vibrations. When mechanical energy is transmitted through solids, liquids, and gases, oscillating pressure waves known as “sound” are generated. The photon model of light explains why electromagnetic radiation of different wavelengths interacts differently with matter. Interference and diffraction of light waves are used in many analytical and diagnostic techniques. Differential absorption of electromagnetic radiation can be used to generate images useful in diagnostic medicine. When light interacts with matter, spectroscopic changes occur that can be used to identify the material on an atomic or molecular level. The properties of light are exploited in the optical elements of the eye to focus rays of light on sensory elements. The behavior of light depends on its frequency (or wavelength). Light is a form of electromagnetic radiation - waves of electric and magnetic fields that transmit energy. Training Opportunities for Residents and Fellows.ERAS® Tools and Worksheets for Fellowship Applicants.ERAS® Tools and Worksheets for Residency Applicants.MyERAS® Application and Program Signaling for 2023-24.ERAS® 2024 Participating Specialties & Programs.Managing Your Finances During Residency.Interview Resources for Residency Applicants. Researching Residency Programs and Building an Application Strategy.Visiting Student Learning Opportunities™ (VSLO®).Managing Your Finances During Medical School.Interview Resources for Medical School Applicants.AAMC PREview® Professional Readiness Exam.
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