Wave Motion. Review Lab What affects frequency? What is a Wave? The transfer of energy through a medium Source of energy is needed to creates vibration.

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Presentation transcript:

Wave Motion

Review Lab What affects frequency?

What is a Wave? The transfer of energy through a medium Source of energy is needed to creates vibration that can be passed through a medium

Earth: A Biography Let’s take a look!

Terminology Pulse – a single disturbance Periodic wave – wave where the motion is repeated at a regular time interval

Transverse Wave The motion of the particles in the medium is at right angles to the direction in which the wave travels

Terminology Crest – high section of the wave Trough – low section of the wave Wavelength ( )- distance between successive wave particles that are in-phase (at the same place moving in the same direction )

Drawing Transverse Waves Draw a periodic transverse wave consisting of two wavelengths with an amplitude of 2 cm and λ = 3.0 cm

Longitudinal Wave particles vibrate parallel to the direction of the motion of the wave

Terminology Compressions: areas where particles come closer together Rarefactions: regions where particles are further apart

Homework! Draw the following waves: Draw 3 waves with A = 1.0 cm and λ = 2,0 cm Draw 2 wavelengths A = 1.5 cm and λ = 4.0 cm Draw 4 wavelengths A = 1.0 cm and λ = 1.0 cm