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Q: Why do waves decrease in amplitude as they radiate?
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How will decreasing the amplitude of the sound waves from a TV affect its intensity?

Amplitude is intensity. It refers to the strength of a sound wave, which the human ear interprets as volume or loudness and if you decrease the amplitude you also decrease its intensity.


What do primary and surface waves have in common?

Both waves travel along Earth's surface and decrease in amplitude with depth below the surface.


What do vertical and horizontal surface waves have in common?

Both waves travel along Earth's surface and decrease in amplitude with depth below the surface.


What type of waves have amplitude?

All waves have amplitude.


What would happen if you reduced the amplitude of a sound wave?

Because sound waves are displacements of molecules of the medium they travel through, reducing the amplitude would mean decreasing the displacement the molecules experience as the wave passes through. Even though sound waves are longitudinal (meaning the displacement is in the direction the wave travels in) and waves in water are transversal (the displacement is perpendicular to the wave's direction), an example can be found in water waves; reducing the amplitude in water waves would reduce the size/height of the waves. In the case of audible sound waves reducing the amplitude will decrease the volume of the sound.


When you turn down the volume what will happen to the sound waves' amplitude?

Intensity of sound is dealt as volume in case of radio sets. Intensity is directly proportional to the square of amplitude. So as volume is turned down, intensity is reduced and so the amplitude is decreased.


Do sound waves radiate?

yes


If a band is playing loudly will the amplitude of the sound waves be small or large?

The amplitude of the sound waves will be largerbecause the larger the amplitude the louderthe sound.


What happens to the intensity of a wave if the amplitude decreases?

Intensity of a wave is proportional to the frequency squared and amplitude squared based on this formula; I=1/2pw^2A^2V where p is the density of the medium, w is the angular frequency and A is the amplitude and V is the wave velocity. So, everything else remaining constant, decreasing the amplitude will decrease a waves intensity. Example decreasing the the amplitude by a factor of 4 will decrease the wave intensity by a factor of 8.


What are micro-waves average amplitude?

microwaves average amplitude


What is it called when the crest of two waves overlap and result in an increased wave amplitude?

Superimposing of waves is when two or more waves travel through the same medium and intersect. The net displacement is the addition of the waves amplitude. If they are in phase they increase amplitude; out of phase, the amplitude decreases.


What is the property of waves responsible for loudness?

what is the property of waves responsible for loudess