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Determining Speed and Types of Waves in Physics

In this lesson, we'll explore how the speed and type of a wave can be determined. You will learn about the transport characteristics of waves, their common properties, and calculate the frequency of blue light with a wavelength of 480 nm. We will review the fundamental wave property relations, including the wave equation, which relates wave speed to frequency and wavelength. Additionally, we will examine transverse and longitudinal waves, discussing their different propagation methods and real-world examples such as electromagnetic and sound waves.

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Determining Speed and Types of Waves in Physics

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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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