Electromagnetic Waves
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What does ice cream look like in an infrared camera?
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Video Instruction
showmethephysics.com
Teachers' Domain: Infrared Gallery
Teachers' Domain, Infrared Gallery,
published October 21, 2005, retrieved on April 2, 2009,
http://www.teachersdomain.org/resource/
Electromagnetic Radiation - waves of energy generated by the acceleration of charges
Why can't neutrons make this kind of wave?
Have no charge
- travel at the speed of light in a vacuum
3 x 108 m/s
Electromagnetic
Wave
Santa Barbara City College
NASA - Electromagnetic Waves
Charges "shake" off their energy
in waves when they vibrate
Vibrating Charges &
Electromagnetic Waves
Physics 2000
3d Electromagnetic Wave
- David M. Harrison
3d Electromagnetic Wave # 2
- David M. Harrison
Electromagnetic Radiation
- Wavelength and Frequency
Spectrum © W. Bauer
Conversion of a DICOM-format X-ray from a ten year old male showing polydactyly. This is the patient's left hand, posterior-anterior projection. Identifying tags and such have been stripped. en:User:Drgnu23, subsequently altered by Grendelkhan, Raul654, and Solipsist.
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In the late 40's & early
Source - Museum of quackery |
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Meet the Pedoscope
Source - Museum of Quackery - Bob McCoy
Which wave has the
smallest wavelength?
(hint: most penetrating)
Gamma Rays,
X-Rays
Which wave has the
smallest frequency?
Radio
Waves
Which Color Has the
Greatest Wavelength?
Red
Smallest Wavelength?
Violet
Which color of light has a
frequency of 6.0 x 1014 Hz?
Green
What is the frequency
of light whose wavelength
is 6 x 10-7 m?
v = fl
3x108 m/s = f[6 x 10-7 m]
f = 5 x 1014 Hz
What color?
Orange
Try this at home
Seeing invisible waves with your cellphone
Enrichment
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