1. Electromagnetic Spectrum and Color

2. Speed of all electromagnetic waves is ________________ = speed of light
___________________ Frequency = ___________________ Wavelength = High Energy
Gamma Rays
___________________ Frequency = ___________________ Wavelength = Low Energy
Radio Waves

3. Radio Waves Wavelengths Sources Uses
______________________________________
Sources
Stars
Transmitters
Uses
AM Radio = _______________________ Modulation
FM Radio = _______________________ Modulation
Television
Cell phones
Radar

4. Microwaves Wavelengths Sources Uses _____________________ Stars
In microwave ovens
Radar

5. Infrared Waves Wavelengths Sources Uses _________________________
Stars
Heat Sources
Uses
Night Vision
Thermal Imaging

6. Visible Light
Region of the EM spectrum that the _________________________________________________
All the colors (ROYGBIV - this is order of colors in increasing energy / decreasing wavelength / increasing frequency)
Wavelengths
__________________________________________
Sources
Stars
Light Bulbs
Lasers
Uses
Sight
__________________________________
Least Energy
Lowest Frequency
Longest Wavelength
Greatest Energy
Highest Frequency
Shortest Wavelength

7. Ultraviolet Waves Wavelengths Sources Uses UVA = tanning, wrinkles
___________________________________
Sources
Stars
____________________________ (UVA)
Mercury-Vapor Lamps
(UVB and UVC)
Uses
Sterilization
________________________
Forensics
Chemical Markers
UVA = tanning, wrinkles
UVB = tanning, sunburn, cancer
UVC = ____________________________________________

8. X-Rays Wavelengths Sources Uses
_________________________
Sources
Stars
X-Ray Tubes
Uses
Medical Imaging
Astronomy
Can penetrate soft tissue, but not ____________________

9. Gamma Rays Wavelengths Sources Uses _______________________
______________________________________________ (radioactive waste from nuclear fission plants releases gamma rays)
Stars
Uses
Cancer radiation treatments

10. Light and Color ____________________________
Absorbs or reflects all light (can’t see through it)
Allows some light to pass through it
Allows light to pass through completely

11. Additive Color White light In white light, an object…
contains all visible colors - ROYGBIV
In white light, an object…
____________________________ the color you see
____________________________ all other colors
Primary Additive Colors
________________________
Examples
Computer Monitors (kinda)
Televisions (kinda)

12. Electromagnetic Spectrum
Subtractive Color
Electromagnetic Spectrum
Pigments, Dyes, Inks, Paints
colored material that absorbs and reflects different colors
Primary Subtractive Colors
_____________________________
Examples
Color Ink Cartridges