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Exploring Waves: A Comprehensive Guide

Understand wave energy and transfer, including types like sound, light, and water waves. Learn wave properties and definitions in electromagnetism and mechanics.

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Exploring Waves: A Comprehensive Guide

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  1. Introduction to Waves

  2. The location of energy sources may be different than where they are needed. • The energy must be transferred from one location to another by some means such as……

  3. Movement of Material • Ie. Projectiles in flight, wind, etc. • When a ball hits a window, the glass is shattered by energy transferred from the ball during impact.

  4. Thermal Convection • Heat energy is transferred by thermal convection. This is the movement of quantities of heated gas or liquid between two locations.

  5. Waves • Ie. Sound waves, light waves, water waves, etc. The ideas and language used to describe waves are the same, regardless of the kinds of waves involved.

  6. What is a wave? • The basic concept in the use of the term wave is that the wave involves some quantity or disturbance that changes in magnitude with respect to time at a given location and changes in magnitude from place to place at a given time. • A wave is a disturbance that propagates through a medium or space (vacuum).

  7. Some waves are electromagnetic waves • Electromagnetic waves can travel through a material or through a vacuum. • Examples include visible light, microwaves, radio waves, x-rays, infrared rays and ultraviolet waves. • V = 3.00 x 108 m/s in air or a vacuum

  8. Some waves are mechanical waves • Mechanical waves require a material medium for their propagation (movement). • Sound waves, ocean waves, and earthquakes are mechanical waves. • Mechanical waves can be transverse, longitudinal, or surface waves.

  9. Transverse Waves • A transverse wave is a wave in which the vibrations are at right angles to the direction of propagation. • http://surendranath.tripod.com/Applets/Waves/Twave01/Twave01Applet.html

  10. Longitudinal Waves • A longitudinal wave is a wave in which the vibrations are parallel to the direction of propagation of the wave. • http://www.glenbrook.k12.il.us/GBSSCI/PHYS/mmedia/waves/lw.html

  11. Surface Waves • Surface waves such as water waves combine longitudinal and transverse wave movement. • http://www.classzone.com/books/earth_science/terc/content/visualizations/es1604/es1604page01.cfm?chapter_no=visualization

  12. Elastic medium Disturbance Pulse Crest Trough Compression rarefaction Speed Frequency Period Wavelength Amplitude Phase Define the following wave terms

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