Today: Today: Finish Vibrations and Waves (Ch 19) Sound (Ch 20) 1 Preliminaries What is the origin of sound? Vibrations of objects, e.g. of a string, of a reed, of vocal…

Slide 1 Origins of the Universe Horton Hears a Who: Part 1 http://www.youtube.com/watch?v=B0qZ4V53EV4 Part 2 http://www.youtube.com/watch?v=3BsiN8SxUMM&feature=mfu_in_order&list=UL…

WAVE INTERACTIONS Longitudinal Wave wave particles vibrate back and forth along the path that the wave travels. Compressional Wave Compressions The close together part of…

Slide 1Chapter 4 Review Slide 2 Distinguishing between two shades of red is an example of a.absolute threshold b. difference threshold. c. sensory adaptation d. afterimage.…

WAVE INTERACTIONS Longitudinal Wave wave particles vibrate back and forth along the path that the wave travels. Compressional Wave Compressions The close together part of…

Longitudinal wave requires a medium (cannot travel in a vacuum) is known as ACOUSTICS Properties of Sound A sound is a vibration The vibrating causes the air molecules near…

Fig. CO7 Ocean currents Large-scale moving seawater Surface ocean currents Transfer heat from warmer to cooler areas Similar to pattern of major wind belts Affect coastal…