Doppler EffectWe enlist the help of the police to analyze the Doppler effect as it relates to light and sound. We work through an example problem and bring clarity to a sometimes confusing equation.
Learning Objectives
-Describe the Doppler effect qualitatively and mathematically.
-Calculate the observed frequency of a sound wave using the Doppler effect equation.
-Understand why the frequency of a sound changes as the source and/or the observer move.
-Relate the Doppler effect to electromagnetic waves and describe its effect on the perceived color of objects emitting the waves.
-Describe the Doppler effect qualitatively and mathematically.
-Calculate the observed frequency of a sound wave using the Doppler effect equation.
-Understand why the frequency of a sound changes as the source and/or the observer move.
-Relate the Doppler effect to electromagnetic waves and describe its effect on the perceived color of objects emitting the waves.
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Doppler effect - an increase or decrease in the frequency of sound, light, or other waves as the source and observer move toward or away from each other.
sonic boom - a loud noise caused by the shock wave from an object traveling faster than the speed of sound.
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