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WAVES

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WAVES By Laurie Bianchi 4/24/03 A wave is a disturbance that carries energy through matter or space Electromagnetic Waves Electromagnetic Waves do not need a medium ... – PowerPoint PPT presentation

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Title: WAVES


1
WAVES
  • By Laurie Bianchi
  • 4/24/03

2
A wave is a disturbance that carries energy
through matter or space
3
Types of waves
http//library.thinkquest.org/C005705/English/Wave
s/wavetypes.htm
4
Water waves
Water waves are a type of surface wave where two
different media meet (example air and water)
http//imagers.gsfc.nasa.gov/ems/waves.html
5
energy in motion
In surface waves the particles move in a circular
motion http//imagers.gsfc.nasa.gov/ems/waves.html
6
Ripple tank - what kind of waves are these?
http//www.falstad.com/ripple/ http//www.colorado
.edu/physics/2000/waves_particles/index.html
7
Types of waves
Mechanical waves need a medium to go
through Electromagnetic waves dont need
anything to travel through.
http//library.thinkquest.org/C005705/English/Wave
s/wavetypes.htm
8
Almost all waves are mechanical waves
and require a medium to travel.
http//library.thinkquest.org/C005705/English/Wave
s/wavetypes.htm
9
Simple harmonic motion http//library.thinkquest.
org/C005705/English/Waves/spring.htm
10
A medium is matter through which a wave travels
such as air or water.
http//library.thinkquest.org/C005705/English/Wave
s/wavetypes.htm
11
Wave shapes are either longitudinal or
transverse
http//library.thinkquest.org/C005705/English/Wave
s/wavetypes.htm http//www.phy.ntnu.edu.tw/java/wa
veType/waveType.html
12
Types of waves
Transverse
http//library.thinkquest.org/C005705/English/Wave
s/wavetypes.htm
13
Types of waves
http//library.thinkquest.org/C005705/English/Wave
s/wavetypes.htm
14
Types of waves
http//www.glenbrook.k12.il.us/gbssci/phys/mmedia/
waves/lw.html
15
Types of waves
Longitudinal
http//www.glenbrook.k12.il.us/gbssci/phys/mmedia/
waves/lw.html
16
http//www.sciencejoywagon.com/physicszone/lesson/
09waves/introwav/sld004.htm
17
Ripple tank - what kind of waves are these?
http//www.falstad.com/ripple/ http//www.colorado
.edu/physics/2000/waves_particles/waves.html
18
Stadium waves
http//www.colorado.edu/physics/2000/waves_particl
es/stadium_wave.html
19
Electromagnetic Waves
  • Electromagnetic
  • Waves do not need a medium to travel through.
    They can go through space.

20
Electromagnetic waves are transverse waves with
a variety of wavelengths and frequencies.
21
http//hal.grasslands.ab.ca/mz/EMS.htm
The Electromagnetic Spectrum See a wave in motion
at this site. What is frequency?
22
What are electromagnetic waves?
http//www.colorado.edu/physics/2000/waves_particl
es/index.html
23
A look at wavelengths changing
http//www.colorado.edu/physics/2000/waves_particl
es/lightspeed-1.html
24
(No Transcript)
25
Click on the hyperlink below to learn about
electromagnetic waves.
http//imagers.gsfc.nasa.gov/ems/ems.html
26
The electromagnetic spectrum
http//imagine.gsfc.nasa.gov/docs/science/know_l1/
emspectrum.html
Click on the link above for an introduction to
the electromagnetic spectrum
27
Microwaves - a type of electromagnetic wave
http//www.colorado.edu/physics/2000/applets/h2o.h
tml
28
Infrared
http//coolcosmos.ipac.caltech.edu/image_galleries
/our_ir_world_gallery.html
29
http//sirtf.caltech.edu/EPO/IRimages/
30
Boy dog
http//sirtf.caltech.edu/EPO/IRimages/
31
All about spectra Click on link to view web site
http//archive.ncsa.uiuc.edu/Cyberia/Bima/spectrum
.html
32
THE BASICS OF LIGHT (Blair 1999)
http//violet.pha.jhu.edu/wpb/spectroscopy/basics
.html
33
X-Rays and how they are made.
http//www.colorado.edu/physics/2000/xray/making_x
rays.html
34
MicroWorlds http//www.lbl.gov/MicroWorlds/ALSTo
ol/EMSpec/EMSpec2.html
35
For those seeking enrichment. . .
http//www.altair.org/index.html
36
What happens when waves meet?
http//library.thinkquest.org/C005705/English/Wave
s/phases.htm
37
What happens when a wave meets another object?
http//library.thinkquest.org/C005705/English/Wave
s/phases.htm
38
There is interference. It could be constructive
or destructive.
http//www.glenbrook.k12.il.us/gbssci/phys/Class/w
aves/u10l3c.html http//www.colorado.edu/physics/2
000/applets/fourier.html
39
Standing longitudinal waves
http//www.chemmybear.com/
http//www.walter-fendt.de/ph11e/stlwaves.htm
40
Lasers
  • http//www.ece.utexas.edu/projects/k12-fall98/1454
    0/Group7/laser.html
  • http//vcs.abdn.ac.uk/ENGINEERING/lasers/lasers.ht
    ml

41
Lasers
  • http//www.ece.utexas.edu/projects/k12-fall98/1454
    0/Group7/laser.html
  • http//vcs.abdn.ac.uk/ENGINEERING/lasers/lasers.ht
    ml

42
Transverse waves in motion
http//home.a-city.de/walter.fendt/phe/emwave.htm
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