By way of compression waves. See link.
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Sound travels through gases as a series of compressions and rarefactions of the gas molecules. When an object vibrates, it creates pressure waves that move through the gas, causing neighboring molecules to also vibrate and transfer the sound energy. The speed of sound in gases depends on factors such as temperature, pressure, and the molecular weight of the gas.
Seismic waves, including P-waves and S-waves, can travel through solids, liquids, and gases. They are produced by earthquakes and other sources of vibrations and provide valuable information about the interior of the Earth.
Sound can travel faster through space because space is a vacuum where there are no particles to slow down the transmission of sound waves. In a room at room temperature, sound travels through the molecules of the medium, such as air, which can slow down its speed.
Sound waves can travel through solids by causing particles to vibrate and pass energy along. This transmission is more efficient in solids than in liquids or gases because the particles in solids are closely packed.
Sound travels faster and is generally louder in solids compared to gases. In solids, molecules are packed closely together, allowing sound waves to travel quickly and efficiently. In gases, molecules are more spread out, leading to slower sound transmission and quieter sound levels.
The seismogram shows that P waves travel faster than S waves, as they are the first waves to arrive at the seismograph station after an earthquake occurs. P waves are compressional waves that can travel through solids, liquids, and gases, whereas S waves are shear waves that can only travel through solids.