1. Bell Ringer Where is the laptop charging station? How many passes do you get to leave the room per nine weeks? What was one of your learning styles?

2. Waves A wave is a disturbance that carries energy through matter or space.

3. Medium Most waves travel through a medium. Water is the medium for waves on a pond. Air is the medium for sound waves. For earthquakes, the Earth itself is the medium.

4. Electromagnetic Waves Electromagnetic waves do not need a medium. They change the electric and magnetic fields in space. Visible light waves and radio waves are types of electromagnetic waves.

5. Waves Transfer Energy The bigger a wave is, the more energy it carries. A tsunami is a huge ocean wave caused by an earthquake. Ocean waves do work on shore by breaking up rock to form sandy beaches.

6. Vibrations Most waves are caused by vibrating objects. The vocal cords in your throat move back and forth causing air to vibrate and creates sound waves.

7. Transverse Wave A transverse wave is a wave where the wave motion is perpendicular to the particle motion. When people do the wave- that’s an example of a transverse wave.

8. Longitudinal Waves Longitudinal waves have motion that is parallel to wave motion. Sound waves are longitudinal waves. Picture on page 512

9. Parts of a Wave

10. Article http://www.popsci.com/science/article/2010- 02/disconnected http://www.popsci.com/science/article/2010- 02/disconnected Read the article from the Popular Science magazine