Docstoc

Writing Prompt 11606

Document Sample
Writing Prompt 11606 Powered By Docstoc
					     Writing Prompt: 11/6/06
l ANSWER IN COMPLETE SENTENCES!
l How does water move to make a wave?
l How does a wave travel?
         Waves

Not just for beaches anymore…
                   Waves
l   Definition: A disturbance that propagates,
    carrying energy.

l   MOST waves need a medium to travel
    through (i.e. air, water, etc.)
                    Waves
l   Electromagnetic waves (light) DO NOT
    need a medium to travel in

l   This is why light can travel through space,
    where there is no air.
                    Waves
l   Different parts of a wave:
    l Crest: highest point
    l Trough: lowest point
    l Amplitude: the height of the wave
    l Wavelength: the length of 1 wave from crest
      to crest
                    Waves
l   Different parts of a wave:
    l Crest
    l Trough




    l Amplitude
    l Wavelength
                     Waves
l   Wave Properties:
    l Wave   speed: time it takes a wave to move a
      certain distance (distance / time)
    l Frequency: the # of waves that pass in a
      second (unit is call a Hertz or Hz)
                     Waves
l   Different Types of Waves:
    l Periodic:a wave that moves back/forth
    l Standing wave: a wave that only rises or falls
    l Transverse wave: a wave that has a crest and
      trough (moves up and down)
    l Compression/Longitudinal wave: a wave that
      moves in and out but not up and down.
                  Waves
l   DEMO

l   What types of waves are these?
                 Waves
l   ACTIVITY TIME!

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:1
posted:7/21/2013
language:simple
pages:10