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PHYSICS Mr. BALDWIN WAVES 23-Jan-14

PHYSICS Mr. BALDWIN WAVES 23-Jan-14. AIM: How can the speed & type of a wave be determined? DO NOW What do waves transport? What do all waves have in common? What is the frequency of blue light that has a wavelength of 480 nm? HOMEWORK : Worksheet: 20.1 Waves.

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PHYSICS Mr. BALDWIN WAVES 23-Jan-14

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  1. PHYSICS Mr. BALDWIN WAVES 23-Jan-14 AIM: How can the speed & type of a wave be determined? DO NOW • What do waves transport? • What do all waves have in common? • What is the frequency of blue light that has a wavelength of 480 nm? HOMEWORK: Worksheet: 20.1 Waves

  2. RECALL: Wave Property Relations • The frequency is inversely proportional to the period • WAVE EQUATION: The wave speed is equal to the product between the frequency & wavelength • Speed of light (E-M) • ALTERNATE FORMS

  3. Types of Waves: Transverse & Longitudinal The motion of particles in a wave can either be perpendicular to the wave direction (transverse) or parallel to it (longitudinal).

  4. Transverse Waves • Transverse waves has propagations in both the horizontal & vertical directions but perpendicular to wave direction • ex. Light (E-M) waves

  5. Longitudinal Waves • Longitudinal waves have propagation in one direction only (Unidirectional). Particles vibrate parallel to wave direction • ex. Sound waves

  6. Sound waves are longitudinal waves: pressure waves (Rarefaction)

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