What a mechanical wave is and what it travels through, and different types of mechanical waves.
Review the definition of mechanical wave, the medium through which it travels, and different types of mechanical waves.
Discover how electromagnets in telephones turn electrical signals to sound waves that you can hear.
Find out what causes tsunamis and the extent of destruction and death caused by the 2004 South Asian tsunami.
Find out how seismic waves travel, the characteristics of different types of seismic waves, and how they cause damage.