1. The Electromagnetic Spectrum
Standard 8-6.8
Compare the wavelength & energy of waves in various parts of the electromagnetic spectrum.

2. Electromagnetic Spectrum
Electromagnetic waves have what?
What is the electromagnetic spectrum?
a wide range of wavelengths
the entire range of wavelengths
the relationship between the wavelength & energy of waves in various parts

4. Visible Light What is visible light?
What is the visible light spectrum?
Where are the wavelengths of visible light?
The longer the wavelength
the range of electromagnetic waves that can be detected by the human eye
entire range of visible light
the middle range of the wavelengths/frequencies of electromagnetic waves
the lower the energy of the wave is

5. What Color do I See?
the human eye reacts to different energies & frequencies of light in the visible light spectrum
colors toward the blue-violet range & have higher energy
colors toward the orange-red range & have lower energy
How is it that different colors are seen?
Higher frequencies (shorter wavelengths) are perceived as what colors?
Lower frequencies (longer wavelengths) are perceived as what colors

6. Infrared Radiation
the range of electromagnetic waves with frequencies lower than red on the visible light spectrum, thereby having longer wavelengths & less energy than red wavelengths
but hotter objects emit more infrared radiation than cooler
infrared rays
they become warmer
What is infrared radiation?
All objects emit
infrared radiation…
Heat energy is transmitted by what?
When objects absorb infrared radiation…

7. Ultraviolet Radiation
the range of electromagnetic waves with frequencies higher than violet on the visible light spectrum, thereby having shorter wavelengths & more energy then violet wavelengths
too much exposure is damaging to the eyes & the skin
What is ultraviolet radiation?
Because of the high energy of ultraviolet radiation…