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Why do sounds get quieter the further away you are from the source?
Wiki User
∙ 13y ago
Louder or fainter means more intense or less intense of sound vibrations respectively.
Intensity in turn is the energy per unit area.
Imagine the source of sound to be at the centre of a sphere. When you are far away then the radius of the sphere would be larger and thus the surface area of the sphere also becomes larger.
As the energy given out by the source of sound is divided by larger area to get the intensity its value becomes lesser. Hence fainter.
Ear drums and microphone diaphragms are moved by sound pressure.
Note: Sound power (sound intensity) is the cause - and the sound pressure is the effect. The effect is of particular interest to the sound engineer.
Another Perspective:
The intensity (loudness) of sound decreases with the square of the distance from the source.
Wiki User
∙ 13y ago
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Why shadow get smaller and bigger in a scientifically explination?
The size of a shadow has everything to do with placement of the light source, the object, and the background on which the shadow is cast. In general, if the light source is close to the object and the background is further away then the shadow is larger than the object. The opposite is true if the light source is further away. Another part of the equation has to do with angles. This is what we commonly observe happining to shadows at different times of the day; long shadows in the morning and evening and smaller shadows around the middle of the day.
Is 839719 closer to 830000 or 840000?
840,000 is closer as 281 away 830,000 is further 9,719 away
What is inverse square law and an example?
inverse square law is the law that states the intensity of the light, sound etc is directly proportional to 1/ distance squared meaning the further you are from the source the less intense the light etc will be. e.g. an object 1m away from a light source 1/1^2=1 , 2m 1/2^2= 1/4 and so forth
Which depth cue accounts for why parallel lines appear to grow closer together the further away they are?
monocular constancy
How many trapeziums can be drawn on a base length n?
An infinite number. Draw one and then keep moving its parallel side further and further away. And you did not even look at the trapeziums that could be generated by varying the length of that side.
What makes sound quieter?
Sound can be quieter if it travels a shorter distance, encounters more obstacles or barriers which absorb or dissipate the sound energy, or if the source of the sound is less powerful or further away from the listener. Additionally, using materials that absorb or dampen sound waves can also make the sound quieter.
What happens to sound waves as they move away from the source of the sound?
They get distant and more quieter
The sound of a bullfrog attracts a mate How much quieter is the sound if the mate is 4 times further away if the sound follows the inverse square law?
If the mate is 4 times further away, the sound will be 16 times quieter based on the inverse square law. This is because sound intensity decreases proportional to the square of the distance from the source.
Why do sounds grow fainter as you get further away from the sound source.?
Sounds grow fainter as you get further away from the sound source due to the dispersion of sound waves in the surrounding medium. As distance increases, the energy carried by the sound waves spreads out over a larger area, resulting in a decrease in sound intensity at the listener's location. This phenomenon is known as the inverse square law, where sound intensity decreases proportionally to the square of the distance from the source.
What happen to sound as it moves away from it's source?
As sound moves away from its source, it gradually loses intensity and becomes quieter. This is because sound waves spread out in all directions, causing the energy of the sound wave to become more dispersed. The farther you are from the source, the weaker the sound will be.
How do rivers change as they get further away from its source?
Erosion and rain cause it
What happens to a sound as the thing making the sound moves further away?
It popes
Is the speed of light faster further away from its source or closer?
The speed of light is constant, regardless of how far it is from its source.
What happens when you stand farther from the sound?
When you stand farther from a sound source, the sound intensity decreases as the sound waves spread out over a larger area. This results in the sound becoming quieter and more muffled the farther away you are from the source.
Is your shadow bigger when your nearer to the light or further away?
Your shadow appears smaller when you are nearer to the light source and larger when you are further away. This is because the closer you are to the light source, the more direct and concentrated the light is, resulting in a sharper shadow with less dispersion. Conversely, the further away you are, the light is more spread out, causing your shadow to appear larger.
What happens to your shadow when you move away from light?
Your shadow will become longer and less defined as you move away from the light source. If you move further away, your shadow may eventually disappear completely depending on the distance from the light source.
When you move away from an ionizing source of radiation does it increase or decrease?
Moving away from an ionizing source of radiation typically decreases the intensity of radiation exposure you receive. The further you move from the source, the lower the dose of radiation you are exposed to.
