Why does an explosion make noise?
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The pressure of the explosion breaks the sound barrier. Big thing goes boom makes boom sound
Explosions create a shockwave. A shockwave is like a soundwave, but really really extreme. A pressure wave expanding outwards.
This pressure wave bounces off of everything it strikes, creating a “new” wave. Now instead of one wave, you have countless tiny waves from every source.
Between our original shockwave and its echoes, you have a whole host of waves, which is sound.
an explosion is a sudden and violent expansion of matter outwards, usually caused by a rapid combustion or other chemical reaction, or by immense pressure suddenly being released.
sound is caused by air particles vibrating and being pushed against each other, forming waves like ripples in water. those waves hit your ears and your ears process that as sound for your brain.
a sudden expansion of matter from an explosion is going to displace the air around it, violently and suddenly pushing it back, creating huge “ripples” that is heard as an explosion. additionally, if the explosion produces a lot of heat, the air around it quickly heats up and expands, further pushing outwards. this is also why lightning creates thunder. the immense amount of heat cause by a lightning bolt heats the air around it to 50,000F in just a fraction of a second and causes it to violently expand outwards, causing thunder.
Because it moves air, causing a change in pressure. All sound is the changes in air pressure.
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