WAVES

By Laurie Bianchi

4/24/03

A wave is a disturbance that carries energy

through matter or space

http://library.thinkquest.org/C005705/English/Waves/wavetypes.htm

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

                                             

In surface waves the particles move in a circular motion http://imagers.gsfc.nasa.gov/ems/waves.html

                                                                                           

http://www.falstad.com/ripple/http://www.colorado.edu/physics/2000/waves_particles/index.html

http://library.thinkquest.org/C005705/English/Waves/wavetypes.htm

Mechanical waves – need a medium to go throughElectromagnetic waves – don’t need anything to travel through.

http://library.thinkquest.org/C005705/English/Waves/wavetypes.htm

Almost all waves are mechanical waves andrequire a medium to travel.

Simple harmonic motion http://library.thinkquest.org/C005705/English/Waves/spring.htm

http://library.thinkquest.org/C005705/English/Waves/wavetypes.htm

A medium is matterthrough which awave travels such as air or water.

http://library.thinkquest.org/C005705/English/Waves/wavetypes.htmhttp://www.phy.ntnu.edu.tw/java/waveType/waveType.html

Wave shapes are eitherlongitudinal or transverse

http://library.thinkquest.org/C005705/English/Waves/wavetypes.htm

Transverse

http://library.thinkquest.org/C005705/English/Waves/wavetypes.htm

http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/waves/lw.html

http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/waves/lw.html

Longitudinal

http://www.sciencejoywagon.com/physicszone/lesson/09waves/introwav/sld004.htm

                       

                                                                                   

http://www.falstad.com/ripple/http://www.colorado.edu/physics/2000/waves_particles/waves.html

http://www.colorado.edu/physics/2000/waves_particles/stadium_wave.html

Electromagnetic Waves

Electromagnetic

Waves do not need a medium to travel through. They can go through

space.

Electromagnetic waves are transverse waves with a variety of wavelengths and frequencies.

http://hal.grasslands.ab.ca/mz/EMS.htm

The Electromagnetic SpectrumSee a wave in motion at this site. What is frequency?

http://www.colorado.edu/physics/2000/waves_particles/index.html

http://www.colorado.edu/physics/2000/waves_particles/lightspeed-1.html

A look at wavelengths changing

Click on the hyperlink below to learn about electromagnetic waves.

http://imagers.gsfc.nasa.gov/ems/ems.html

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

http://www.colorado.edu/physics/2000/applets/h2o.html

http://coolcosmos.ipac.caltech.edu/image_galleries/our_ir_world_gallery.html

http://sirtf.caltech.edu/EPO/IRimages/

http://sirtf.caltech.edu/EPO/IRimages/

All about spectra Click on link to view web site

http://archive.ncsa.uiuc.edu/Cyberia/Bima/spectrum.html

http://violet.pha.jhu.edu/~wpb/spectroscopy/basics.html

THE BASICS OF LIGHT (Blair 1999)

http://www.colorado.edu/physics/2000/xray/making_xrays.html

MicroWorlds: http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html

http://www.altair.org/index.html

http://library.thinkquest.org/C005705/English/Waves/phases.htm

What happens when waves meet?

http://library.thinkquest.org/C005705/English/Waves/phases.htm

What happens when a wave meetsanother object?

http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/u10l3c.htmlhttp://www.colorado.edu/physics/2000/applets/fourier.html

There is interference.It could be constructive or destructive.

http://www.walter-fendt.de/ph11e/stlwaves.htm

Standing longitudinal waves

http://www.chemmybear.com/

Lasers

http://www.ece.utexas.edu/projects/k12-fall98/14540/Group7/laser.html

http://vcs.abdn.ac.uk/ENGINEERING/lasers/lasers.html

Lasershttp://www.ece.utexas.edu/projects/k12-fall98/14540/Group7/laser.html

http://vcs.abdn.ac.uk/ENGINEERING/lasers/lasers.html

http://home.a-city.de/walter.fendt/phe/emwave.htm