Types of Waves and Wave Properties. Mechanical Waves What is a mechanical wave? A rhythmic disturbance that allows energy to be transferred through matter.

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Presentation transcript:

Types of Waves and Wave Properties

Mechanical Waves What is a mechanical wave? A rhythmic disturbance that allows energy to be transferred through matter because of the motion of and interactions between the particles in the matter The Medium is the general term for the actual matter through which the wave is traveling. Wave Propagation is the term given when describing the transfer of energy through a medium

Types of Waves Transverse Waves: A wave in which the energy is transferred in a direction perpendicular to the direction of particle movement This type of wave is typically only found in solids Example: Earthquake S - Waves, Guitar Strings Direction of wave propagation Direction of Particle motion

Transverse Wave Properties Trough Crest 

Transverse Wave Properties Amplitude (A): the maximum displacement of a particle in the medium from its rest position Trough: The point in a wave cycle where the medium has reached the maximum displacement BELOW the rest position Crest: The point in a wave cycle where the medium has reached the maximum displacement ABOVE the rest position Wavelength (λ): The distance energy travels through the medium away from a point in the time it takes for one full oscillation of the particle at that point.

Another Type of Wave Longitudinal or compression wave: A wave in which the energy is transferred in a direction parallel to the direction of particle movement Can be present in solids, liquids, or gases Example: Sound Waves, Earthquake P-Waves

Longitudinal Wave Properties Compression: The location in the medium of the greatest particle density and highest pressure Rarefaction: The location in the medium with the lowest particle density and lowest pressure CompressionRarefaction

Longitudinal Wave Properties The wavelength (λ) of a longitudinal wave is typically measured from the beginning of one compression to the beginning of the next (or center to center) Wavelength (λ)

Quantitative Wave Characteristics

Wave Speed