electromagnetic waves by alejandra https://padlet.com/alejarodgar/73j06b3v7ez2 Made with no regrets, whatsoever en-us 2017-02-24 17:44:39 UTC 2017-05-31 01:38:31 UTC hello@padlet.com What are electromagnetic waves alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156415304 Electromagnetic waves are waves which can travel through the vacuum of outer space. Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another. Sound waves are examples of mechanical waves while light waves are examples of electromagnetic waves.
 Electromagnetic waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component. 

]]> 2017-02-27 14:34:19 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156415304 mechanism alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156418199 A frequency spectrum is a graph that shows the amplitudes of different  frequencies  present in sound. Amplitude or loudness, is represented on the y-axis, and frequency is shown on the x-axis. a somogram shows on the verlical axis and time on the horizontal axis. The loudness is shown by a color range.     ]]> 2017-02-27 14:40:21 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156418199 Properties of light alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156450899 Light like sound and heat are forms of energy.
 n order to get light out of an atom,you  must first put someenrgy into the atom]]> 2017-02-27 15:51:13 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156450899 Facts about light: alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156451387
  • travels extremely fast and over long distances.
  • carries energy and information 
  • travels in straight lines 
  • bounces and bends   when it comes with objects
  • has color
  • has different intensities  and can be bright or dim     
    • ]]>     2017-02-27 15:52:18 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156451387     alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156457823 when allthe  colors in the rain bow are conbine we see light without color. whe call the combination of all colors white light.       ]]> 2017-02-27 16:06:41 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156457823 What is color? alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156459783 color is how we perceive the energy of light. all of the color in the the rainbow ave different energies. red light is the lwest  and violet is has the higher energy.         ]]> 2017-02-27 16:11:05 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156459783 The speed of light alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156460951 the speed at which light travelsthroughair is about 300 million meters per second. light is so d=fast it can travel around earth 7.5 times in ine second      ]]> 2017-02-27 16:13:57 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156460951 The frequency of light alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156462932 The frequency of light is very high. for example, red light has a frequency of 460 trillion  ]]> 2017-02-27 16:18:36 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156462932 The electromagnetic alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156464441 The electronmagtic waves  include radio waves, microiwaves,infared light, ultraviolet light, x-ray, and gamma rays.  ]]> 2017-02-27 16:21:58 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156464441 electromagnetic spectrum alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156467202 you can see that visible light  is a small group
        ]]>     2017-02-27 16:28:27 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156467202     The human eye alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156469017 light inters your eyes through the lens then on the r tina. onthe  surface of the retina are light -sensitive cells. when light hits a photoreceptor cell, the cell releases a chemical signal that travels along the optic nerve to the brain. in the brain the signal is translated intoo perception of color.           ]]> 2017-02-27 16:32:27 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156469017 A color process alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156471359 The subtractive color process if often called CMYK for the four pigments it uses. CMYK stand for cyan, magenta,yellow , and black. the letter K stands fior black because the letter  B is used for the color bluein RGB. color printers and photographs use CMYK  ]]> 2017-02-27 16:38:43 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156471359 alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156473342 2017-02-27 16:43:26 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156473342 Light rays alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156473735 when light moves through a a material, it travels in straigth lines . when light rays move from one material to another, the rays may bounce or bend. reflection occurs when light bounces off a suface . refraction happens when light bends while crossing g   a surfaceor moving through material. when you look in a mirrior, objects that are in front of you appear as if they are behing the mirror. light from the object strikes the mirror  and reflects  to your eyes.            ]]> 2017-02-27 16:44:32 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/156473735 alejarodgar https://padlet.com/alejarodgar/73j06b3v7ez2/wish/157081126 2017-03-01 16:38:00 UTC https://padlet.com/alejarodgar/73j06b3v7ez2/wish/157081126