Waves
Introduction to waves
Amplitude period frequency and wavelength of periodic waves
Wave equation
Wave interference pulses
Constructive and destructive interference
Standing waves on strings
Production of sound
Sound properties amplitude period frequency wavelength
Speed of sound
Decibel scale
Ultrasound medical imaging
Standing waves in tubes part 2
Beat frequency
Derivation of beat frequency formula
Doppler effect formula for observed frequency
Doppler effect for a moving observer
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KHAN ACADEMY® offers great materials that can help build your skills in subjects that are important to you.
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KHAN ACADEMY® offers great materials that can help build your skills in subjects that are important to you.
You can master basic concepts, explore subjects further or reinforce your knowledge − at your own pace.
Wherever you are in your learning journey, here are links to free materials that may be useful to identify both your strengths and any knowledge gaps in key background subjects.