Types of Waves and Energy Types of waves Energy Transport.

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Presentation transcript:

Types of Waves and Energy Types of waves Energy Transport

Types of waves TOC Transverse: Wave moves medium moves Longitudinal: Wave moves medium moves Demo Applet Demo Applet

Demo the human wave

Types of waves TOC Sound is longitudinal: Demo - speaker and battery

Types of waves TOC Sound is longitudinal:

Types of waves TOC Surface Wave: Longitudinal and transverse Tsunami - longitudinal wave

Types of waves TOC Electromagnetic Waves - Transverse waves Require no medium - can travel through vacuum Travel at 3.00 x 10 8 m/s in a vacuum (else slower) Speed is independent of speed of source/observer Radio, microwave, Infrared, Light, UV, XRay, Gamma Rays are all EM waves.

Types of waves TOC Mechanical (requiring a medium) Electromagnetic (need no medium) Transverse Longitudinal S (Shear) Earthquake waves Waves in guitar strings Surface waves on water P (Pressure) Earthquake waves Sound waves Compression waves in a spring Surface waves on water All EM Waves: Radio, Microwave, IR, Light, UV, X- Ray, Gamma rays

Types of waves TOC A B Longitudinal waves can pass through fluids, Transverse cannot. Only P earthquake waves can pass straight through the earth: The core of the earth is liquid (Earth is like an egg) P wave S wave

Energy Transport TOC Waves transport energy: Sun to earth Sound to microphone Earthquakes Microwaves Ocean waves Demo - speaker, concentrator