Transcript Nature of Waves
The Nature of Waves Learning Goals:
Recognize that waves transfer energy, but not matter.
Define mechanical waves.
Compare and contrast transverse and compression (longitudinal) waves.
WAVES Definition:
A traveling disturbance that carries energy through matter and space Waves transfer energy without transferring matter.
Waves are produced by something that vibrates.
WAVES Vibrations:
Movement that follows the same path, repeatedly Most waves are caused by a vibrating object.
WAVES Mechanical Waves:
Waves that require a medium Two types: transverse and compression (longitudinal) Examples are seismic and sound waves.
Medium: matter (the stuff) through which a wave travels Examples include water, air, and solids.
TYPES OF WAVES
TRANSVERSE
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Motion of particles is perpendicular to the motion of the wave.
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Examples – electromagnetic waves, waves on a rope, water waves
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Draw an example in your notes. (Think of the slinky.) COMPRESSION (LONGITUDINAL)
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Particles in a medium will vibrate parallel to the direction of wave motion.
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Example – sound waves
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Draw an example in your notes. (Think of the slinky.)