Help Needed on Vibration and Sound Homework

In summary, vibration and sound are forms of energy that travel through different mediums and are closely related as sound is produced by vibrations. The intensity of sound is affected by factors such as amplitude, distance, and obstructions. Sound is measured in decibels and has various real-world applications in industries such as music, engineering, and medicine.
  • #1
maithie
5
0
hello everyone. can u help me on my homework? here are the questions..

--What physical quantity in a vibration is altered when a speed of sound dies away?
--Would you expect the speed of sound in Singapore and Britain to be the same, if each place had the same temperature? Why?


thank u guys!
 
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  • #2
What answers did you originally come up with?
 
  • #3
Yeah, bro, you don't get free answers here.
 

1. What is vibration and sound?

Vibration and sound are forms of energy that travel through different mediums, such as air or water. Vibration refers to the rapid back-and-forth motion of an object, while sound is the result of these vibrations creating pressure waves that can be detected by the human ear.

2. How are vibration and sound related?

Vibration and sound are closely related as sound is produced by vibrations. When an object vibrates, it creates waves that travel through the air and cause changes in air pressure, which our ears interpret as sound. Without vibration, there would be no sound.

3. What factors affect the intensity of sound?

The intensity of sound is affected by three factors: the amplitude of the sound wave, the distance from the source of the sound, and any obstructions or barriers that may absorb or reflect the sound waves. The greater the amplitude and the closer the listener is to the source, the louder the sound will be.

4. How do we measure sound?

Sound is measured in decibels (dB), which is a logarithmic scale that measures the intensity of sound. The higher the decibel level, the louder the sound. A normal conversation is around 60 dB, while a jet engine at takeoff is around 120 dB. Sound can also be measured using a sound level meter, which uses a microphone to detect and measure sound waves.

5. What are some real-world applications of understanding vibration and sound?

Understanding vibration and sound is crucial in many industries, such as music, engineering, and medicine. In music, understanding sound waves and how they interact with different materials helps in creating and producing different types of music. In engineering, knowledge of vibration and sound is essential in designing and constructing buildings, bridges, and other structures that can withstand vibrations and sound waves. In medicine, sound waves are used in ultrasound imaging to see inside the body and diagnose medical conditions.

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