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Why do you hear the sound of an approaching car before car reaches us?
Wiki User
∙ 2011-09-13 14:14:20
Because the speed of sound travels at +- 1300 km/h and the car that is approaching isn't that fast. So u first hear the sound before the car reaches u.
Wiki User
∙ 2011-09-13 14:14:20
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1,000
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1000 feet
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Why do you hear the sound of the horn of an approaching car before the car reaches us?
Thanks for the question. This phenomenon may have something to do with the fact that you may be in the approaching car's way, and they may want you to get out of the way. If the horn sounds only as the approaching car reaches you, it may be too late for anything to be done - hence most people opt for a sounding of the horn at some distance away. You hear the sound before the car reaches you because sound travels faster than the car is travelling.
Why do you always see lightning first before we hear thunder?
The speed of light travels much, much faster than the speed of sound. Thus, the light reaches your eyes before the sound reaches your ears.
Why do you see a distant event before you hear it?
Because the speed of light is much faster than the speed of sound. Therefore, when the light from that event reaches your eyes, you see it. Then later, the sound from the event reaches your ears, and you hear it. Basically it's just because light travels faster than sound.
Who will hear the sound of an approaching boat first this diver or his friend above the water?
The diver
When can you hear air?
You can hear air when it reaches a certain speed to allow it to make a sound when it blows onto your ear.
What happens when sound reaches your ears?
you can hear A very complicated process of turning waves into sound occurs in your ears
Why do you see the lightining of spark first before you hear thunder dureing a thunderstorm?
Because the speed of light is much higher than the speed of sound; so the light flash reaches your eyes much earlier than the rumble sound reaches your ears.
Why do you often see a plane before you hear it?
Light travels much faster than sound. Light goes 186,000 miles per second. Sound travels at about 720 miles an hour. The light reaches your eye long before the sound gets there.
How we hear sounds?
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Why you see the light before you hear the sound during rocket launch?
Light travels much faster than sound. The light from the launch reaches you almost instantly, but if you are a few miles away the sound will take several seconds to reach you.
Why do the firework explode before the bang?
The explosion and the 'bang' happen at the same exact time !But the light from the burst has to travel to you before you can see it, and the sound of the burst has to travel to you before you can hear it.Light travels much faster than sound ... about 874,000 times faster ( ! ) ... so the light always reaches you before the sound does. You always see the burst before you hear it.The farther you are away from it, the farther the sound will lag behind the light, and the more time there will be between the sight and the sound. From one mile away, the sound reaches you about 5 seconds late.Rule of thumb for audio is 1 millisecond per foot, it takes about 30 ms delay (30 ft)before most humans can percieve the delay
