6:13, I thought waves move slower in a denser material??? This is confusing me :P.
@MrKickasskenny
8 жыл бұрын
+MrKickasskenny Can you clarify this for me please DrPhysicsA, is it just P and S waves that travel faster in more dense material? I know light travels slower, so are P and S waves the only exceptions to this rule?
@MrKickasskenny
8 жыл бұрын
+MrKickasskenny The rule as in-waves travel faster in a less dense material
@UnGodlyliFe
8 жыл бұрын
+MrKickasskenny The answer is really complicated, i just checked. But basically waves travel faster in denser material, its just electromagnetic waves which travel slower in denser material, eg light.
@UnGodlyliFe
8 жыл бұрын
www.physlink.com/Education/AskExperts/ae81.cfm
@SoulArtSound
4 жыл бұрын
U know that scene from movies, when actor put his head on railway to hear, is it train coming!? It's because sound is much faster when going trough iron railways, than air. Also air sound speed may vary, depending on altitude, temperature, pressure. For example, At freezing (0º Celcius), sound travels through air at 331 meters per second (about 740 mph). But, at 20ºC, room temperature, sound travels at 343 meters per second (767 mph). The exact speed of sound in steel is 5,960 meters per second...etc
@unknownhuman6102
8 жыл бұрын
primary doesn't travel through liquids but s and l waves do he made a mistake
@bigup9590
8 жыл бұрын
unknown human nope...P waves move through liquid and solids within the earth's core (so do L waves but only on the surface of the planet) and S waves only travel through parts of the earth's core that are solid yet not liquids. hope this clears things up.
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