PHYS 105 1nd Edition Lecture 6Outline of Last Lecture I. Complex Waves and the Vibration SystemOutline of Current Lecture II. WaveIII. Wave superposition and interference Current LectureI. Wave- A disturbance in a medium that can transport energy and information from one location to anothero Examples: Sound wave, earthquake waves and electromagnetic waves- 2 typeso Longitudinal: Wave vibrates in the direction parallel to wave propagationo Transverse: Wave vibrates perpendicular to direction of wave propagationo Water wave: A mix of both longitudinal and transverse- Waves can be periodic or pulsed - Characterized by amplitudes, phases and periods- Wave period = Time for one complete oscillation - Wave frequency = T = 1/f - Wave length = Distance for one complete repeated oscillation- Wave speed = V = f(wavelength)- Speed of longitudinal wave in liquid and solid o V = √Ep E is elastic bulk modulus of liquid P is density of the solid - Speed of a transverse wave on a stringo V = √Tμ T is tension on the stringμ is the mass per unit These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.II. Wave superposition and interference - Disturbances can add or subtract and this leads to wave being able to interfere constructively or destructively - When incident and reflected waves overlap… interference can be constructive or
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