Sections 1
The Nature of Waves
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A wave is a repeating disturbance or
movement that transfers energy through
matter or space.
Ocean waves disturbs the water and transfers
the energy through it.
Waves can be different types there can be
waves so you can hear music, waves that warm
your food in the microwave, and waves that
are in the ocean every day.
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When there is a disturbance in the water, as if a
rock of some sort was dropped into the water a
ripple is formed.
The ripple is formed by the energy from the
falling rock.
The molecules then passes the energy along to
the next molecules, those molecules then passes
to its next molecules, and so on creating the
ripple.
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A moving wave is energy.
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It does not move objects that it passes.
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Only the waves moves forward.
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A wave will only travel as long as it has energy
to carry it.
Vibrating is anything that moves up and down
or back and forth in a rhythm like way.
All waves are produced by a vibrating
movement.
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Medium is the matter the waves travel
through.
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Medium can be a solid, a liquid, a gas, or a
combination.
Not all waves need a medium, some waves can
travel through space.
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Sound waves that travel through air.
Ocean waves travel through water.
Such as light and radio waves.
Mechanical waves can only travel through
matter.
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Transverse wave, matter in the medium moves
back and forth at right angles to the direction
that the wave travels.
Transverse waves is one kind of wave of
Mechanical wave.
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In a compressional wave, matter in the
medium moves back and forth along the same
direction that the wave travels.
The wave carries energy, but not matter.
Compressional waves also are called
longitudinal waves.
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Sound waves are compressional waves as
when noise is made.
This is created when nearby air molecules are
pushed together by the vibrations.
Sound waves can also travel through other
mediums. Such as water and wood.
•These particles are pushed
together and moved apart as
the sound waves move through
them.
•When sound wakes enter your
ear it causes your eardrum to
vibrate.
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Water waves are not fully transverse waves.
The water moves up and down as the waves
goes by.
It moves back and forth in short distances.
The low part of the wave can be formed only
by pushing water forward or backward toward
the high part of the wave. Then goes back to
the original place.
This motion causes
the water to move in
circles.
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Seismic waves are created by vibrates braking the
crust of the earth, carry energy outward .
Seismic waves is a wave of both compressional
and transverse waves.
They can travel through Earth and on the surface.
More energy
is released by
the more the
crust moves
during an
earthquake.
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http://www.deskpicture.com/DPs/Nature/waveNo7_2.ht
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http://www.love2all.org/WaterMenu.htm
http://www.bigroadstudios.com/di_sketch/images/slinky
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http://www.hawaii.edu/lruby/images/BUOY.GIF
http://www.privateline.com/TelephoneHistory/speech.jp
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http://faculty.gvsu.edu/videticp/wave_dimensions.GIF