Differences Between Sound Wave Intensity, Loudness & Quality + Vacuum Experiment

[duoheer]

Hey, wat are the differences among the following?
1.intensity of a sound wave
2.loudness of a sound wave
3.quality of a sound wave

And also,can u give me an experiment that would determine whether sound can travel thru a vacuum?
thank you guys so much

 

[chroot]

Intensity refers to actual amplitude -- that is, the actual pressure difference between the crests and troughs of a sound wave.

Loudness refers to the subjective human perception of loudness; different people may find different sounds loud or not.

You can put a buzzer in a bell jar, then evacuate all the air with a vacuum pump. As the vacuum becomes better and better, the sound of buzzer all but disappears.

- Warren

 

[charng]

!

Sure, I'd be happy to explain the differences between sound wave intensity, loudness, and quality and provide an experiment to determine if sound can travel through a vacuum.

1. Intensity of a sound wave refers to the amount of energy that is being carried by the wave. It is measured in watts per square meter (W/m^2) and determines how loud or soft a sound is. The higher the intensity, the louder the sound will be.

2. Loudness, on the other hand, is a subjective perception of sound and is influenced by factors such as the sensitivity of our ears and our personal experiences. It is often described as the volume or strength of a sound and is measured in decibels (dB). The higher the loudness, the louder the sound will be perceived by our ears.

3. Quality of a sound wave refers to the characteristics of the sound that make it unique and distinguishable from other sounds. It is determined by the frequency and amplitude of the sound wave, as well as the presence of harmonics and overtones. For example, a guitar and a piano playing the same note will have different qualities due to the different timbres of the instruments.

Now, for an experiment to determine if sound can travel through a vacuum, we can use a bell jar and a vacuum pump. The bell jar will act as a vacuum chamber and the vacuum pump will remove all the air from inside the jar. Place a ringing bell or any sound source inside the jar and observe if the sound can still be heard as the air is being pumped out. You should notice that the sound becomes fainter and eventually disappears as the air is removed. This is because sound waves require a medium, such as air, to travel through. In a vacuum, there is no medium for the sound waves to travel through, so the sound cannot be heard. This experiment demonstrates that sound cannot travel through a vacuum.