• In longitudinal waves:

  • The wave moves in the same direction of energy transfer

  • They must move through a medium

Let's Review Longitudinal Waves!

• Acoustic Waves - also called sound waves

• Seismic Waves - responsible for earthquakes

• Both are longitudinal waves

Acoustic Waves and Seismic Waves

• Longitudinal waves travel at a constant speed as long as they're traveling through the same medium

• What happens if they move to a different medium?

Medium and Wave Speed

Wave Speed and States of Matter

• Acoustic waves and sound waves are longitudinal waves

• They must move through a medium

• They move the fastest through the most dense medium (solids)

Review