Wave Energy: Grade 7, unit 33Describes the wonders of light and optics, exploring such developments as lasers, fiber optics, and holography. |
Contents
Optics and Light | 1 |
What Light Is and Does | 7 |
Simple Optics and How They Work | 18 |
Copyright | |
13 other sections not shown
Common terms and phrases
absorb angle atoms bend light binoculars brain bright called coating color compact disk cones dark detector diffraction grating distance drill drum electric electromagnetic waves electronic eyeglasses fiber optics fiber-optic Fiber-Optic Communications focal length focus focuses light glass green heat holes hologram infrared light invisible lamp laser beam laser energy laser light laser pulses lenses light bulb light energy light rays light waves lines look material measure metal meters microscopes mirror move movie nanometers object optical computers optical disks optical fibers optical telegraph paper pattern photographic film plastic plate positive lens prism real image reflect light refracting telescopes refraction retina robot scan scientists screen sensors shown in Figure skin solar cell spectrum spot stars straight sunlight surface telescope television camera tell things tiny total internal reflection types ultraviolet light visible light vision wavelength weapons wires