What does a light wave travel fastest through?
Light waves travel much faster than sound waves. Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water.
Does thunder cause lightning?
Answer. Thunder is caused by the rapid expansion of the air surrounding the path of a lightning bolt. Since the lightning takes so little time to go from point A to point B, the heated air has no time to expand. The heated air is compressed, raising the air from 10 to 100 times the normal atmospheric pressure.
Why does thunder sound like a bomb?
It suddenly heats the air to as much as 18,000 degrees and that air next to the bolt explodes out (and eventually cools and races back in to some degree)  This exploding (expanding) and contracting air creates the sound we know as thunder.
Why does thunder shake a house?
Shock waves are what makes your house shudder when there is thunder. This heat causes air to expand so rapidly that it generates a shock wave. When shock waves hit your house your house may shudder. Those shock waves are also the loud bangs and rumbles that we hear as thunder.
Can a sound be so loud it kills you?
The general consensus is that a loud enough sound could cause an air embolism in your lungs, which then travels to your heart and kills you. Alternatively, your lungs might simply burst from the increased air pressure. High-intensity ultrasonic sound (generally anything above 20KHz) can cause physical damage.
How many dB does it take to go deaf?
Sounds at or below 70 A-weighted decibels (dBA), even after long exposure, are unlikely to cause hearing loss. However, long or repeated exposure to sounds at or above 85 dBA can cause hearing loss. The louder the sound, the shorter the amount of time it takes for NIHL to happen.
How loud is a gunshot with a silencer?
The sound of the bullet striking the target can range from mostly in-audible to every bit as loud as the original gunshot. Modern day silencers typically can reduce the noise about 14.3-43 decibels, depending on a variety of factors, such as whether it’s a subsonic bullet or not; length of the barrel/silencer; etc.
What does 75 decibels sound like?
Following is a table of the decibel level of a number of sounds….Topic Overview.
| Noise | Average decibels (dB) |
|---|---|
| Vacuum cleaner, average radio | 75 |
| Heavy traffic, window air conditioner, noisy restaurant, power lawn mower | 80–89 (sounds above 85 dB are harmful) |
| Subway, shouted conversation | 90–95 |
| Boom box, ATV, motorcycle | 96–100 |