10-30-2015 pg87DO:I will be able to recognize the different types of waves, identify and define the parts of waves, as well as and explain their unique characteristics. EQ:What is the difference in wave types?Explain the similarities and differences between waves.

KWhat I know about Waves

WWhat I want to know about

waves

LWhat I learned about waves

Read pages 509 to 514 in the textbook

as an introduction to waves.

Question:With your table hypothesize what we are going to learn about during our unit on Waves.

5min

WAVES!!!

WavesA wave is any disturbance that transfers

energy through matter or space

If a pebble is thrown into water, you would see waves moving outward from the place where the pebble entered the water. The energy travels through the wave.

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All waves are disturbances that transmit energy. Energy from the pebble moves in a right

angle from the up and down motion of the water as the wave passes This interruption of the quiet, calm water is called a disturbance.

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MediumThe material through which waves can travel is called a medium

Energy is also carried from the source by vibrationsA vibrating particle transfers its energy to a nearby particle and so on.*

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MECHANICAL WavesA medium can be gas, a liquid, or a solid

A wave that needs a medium to travel is called a mechanical wave.

Water is the medium for ocean

waves

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ELECTROMAGNETIC WavesNot all waves need a medium to transfer energyVisible light, microwaves, ultraviolet light, X-rays, infrared waves, and

gamma rays can all travel through empty space

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Mechanical Wave ClassificationWaves are classified according to the way they move and the medium they use.

A wave that transfers energy in a direction that is perpendicular (at a right angle) to its medium is called a

transverse wave

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CLOSURE:What stuck with you?-On a post-it note please write what stuck with you from our lesson on waves. -Hypothesize what we are going to learn next.