underwater sounds

wave motion

• longitudinal waves
• transverse waves
• water waves

longitudinal waves

• they move the particles of the medium parallel to the direction they are moving

transverse waves

• they move the particals of the waves perpendicular to the direction they are moving

water waves

• these waves are a good example of moving both ways; transverse and longitudinal

sound

• sound is wave
• it needs a medium [something to go through] because it is a mechanical wave

transmission of sound through liquid

• sound travels much faster in water than it does in air and much faster in a solid than it does in water[liquid]

transmission of sound through liquid

• as the wave causes particles to vibrate, those particles then hit nearby particles causing them to vibrate as well
• the closer the particles, the easier it is for sound to move because the particles are easier to vibrate

factors that effect the speed of sound

• Temperature (because as the temperature increases, particles move faster)
• Density of the liquid (the denser the medium, the slower sound moves due to the mass of the particles)

links

• http://www.physicsclassroom.com/class/sound/Lesson-2/The-Speed-of-Sound
• https://www.le.ac.uk/se/centres/sci/selfstudy/snd3.htm
• http://www.acs.psu.edu/drussell/Demos/waves/wavemotion.html