Engineering Physics 6 min read
The Doppler Effect and Shock Waves
The Doppler effect is a phenomenon observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be…
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Engineering Physics 13 min read
Behavior of Sound Waves
Interference and Beats Wave interference is the phenomenon that occurs when two waves meet while traveling along the same medium. The…
Engineering Physics 5 min read
The Human Ear
Understanding how humans hear is a complex subject involving the fields of physiology, psychology and acoustics. In this part of…
Engineering Physics 12 min read
The Speed of Sound
A sound wave is a pressure disturbance that travels through a medium by means of particle-to-particle interaction. As one particle becomes disturbed,…
Engineering Physics 8 min read
Intensity and the Decibel Scale
Sound waves are introduced into a medium by the vibration of an object. For example, a vibrating guitar string forces…
Engineering Physics 7 min read
Sound Properties and Their Perception
Pitch and Frequency A sound wave, like any other wave, is introduced into a medium by a vibrating object. The…
Engineering Physics 4 min read
Sound is a Pressure Wave
Sound is a mechanical wave that results from the back and forth vibration of the particles of the medium through which the…
Engineering Physics 3 min read
Sound as a Longitudinal Wave
In the first part of Lesson 1, it was mentioned that sound is a mechanical wave that is created by…
Engineering Physics 7 min read
Sound Waves and Music
The Nature of a Sound Wave Sound is a Mechanical Wave Sound and music are parts of our everyday sensory…
Engineering Physics 8 min read
Mathematics of Standing Waves
As discussed in Lesson 4, standing wave patterns are wave patterns produced in a medium when two waves of identical frequencies interfere…