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Catch a Wave List 3
Light
| Term | Definition |
|---|---|
| absorb | When light waves enter a substance and changes into other forms of energy |
| electromagnetic spectrum | The complete range of frequencies of electromagnetic waves from the lowest to the highest, including, in order : radio, infrared, visible light, ultraviolet, X-ray, and gamma ray waves |
| reflection | When light waves bounce off something else |
| refraction | When light waves bend |
| scatter | To cause to separate widely |
| visible spectrum | Wave energy we can see, portion of electromagnetic spectrum that is visible to the human eye; made of colors |
| prism | A piece of glass or plastic that bends light waves |
| infrared | Rays like light but lying outside the visible light spectrum at its red end |
| transmit | To pass or cause to pass through space or a material |
| ultraviolet light | Light with wavelengths shorter than visible light; the term means "above violet." It is the range of light waves that have shorter wavelengths than violet light in the visible spectrum. |
| opaque | An object that does not allow light waves to pass through it – you CANNOT see through it |
| translucent | An object that allows a few light waves to pass through it – you can ALMOST see through it |
| transparent | An object that allows light waves to pass through – you CAN see through these objects |
| concave | lens is thicker at the edges than it is in the middle |
| convex | lens is thicker in the middle than at the edges. |
| cornea | A transparent membrane that covers the eye. This is where light enters the eye. |
| iris | -A circular band that controls how much light enters the eye; the colorful part of the eye -Expands and contracts to control how much light passes through the pupil |
| lens | A transparent tissue that bends light passing through the eye, helping you focus on an image |
| pupil | The hole in the center of the eye that allows light to pass through |
| retina | A layer of tissue on the back of the eye that has cone cells and rod cells that gather information |
| optic nerve | The great messenger in the back of your eye that carries nerve messages and signals from the retina to the brain |
| sclera | The white part of your eyeball; made of a tough material and contains blood vessels |
Created by:
lcochrane
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