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S8P4.c
Term | Definition |
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Cornea | The transparent of the front of the eye; covers both the iris and the pupil; also helps refract light. |
Pupil | A hole that controls the amount of light that enters the eye by adjusting in size. |
Iris | THe part of the eye that adjusts the size of the pupil; provides characteristic eye color. |
Lens | A transparent object that refracts light waves such that they converge or diverge to create an image. |
Convex Lens | A lens that is thicker in the middle than at the edges. |
Retina | Structure at the back of the eye upon which the lens form an image. |
Optic Nerve | Eye structure that transmits information about an image formed on the retina to the brain. |
Electromagnetic Spectrum | All of the frequencies or wavelengths of electromagnetic radiation. |
Radio Waves | Electromagnetic waves that have the longest wavelength, lowest frequency, and least amount of energy. |
Microwaves | |
Infrared Light | |
Visible Light | |
Ultraviolet Light | |
X-Rays | Electromagnetic waves with short wavelengths, high frequencies and high energy that can |
Gamma Rays | The shortest electromagnetic waves that have the highest frequencies and highest energy. |