You... Light up..... my life https:// I understand the properties of light... (1. It is a form of energy!...I can prove it!) (2. How it is produced) (3. How it interacts with objects) Study guide: 1.In a drawing, show how energy can move through an ecosystem. Prove that energy is neither created or destroyed--- It simply changes form. (This can be hand drawn or computer generated) 2.Draw an atom and label the various parts. Research and then draw what makes an atom carry a negative charge. 3.(buddy task) 4.What makes light occur? 5.Make a chart displaying the various ways that light can interacts with objects. Think sheet Questions Work area Think sheet Questions Work area Light...is a form of energy because it has the ability to do work Ex: When light energy from the sun hits a black shirt it begin to heat the shirt because light energy is turned into thermal energy Energy is neither created or destroyed...it simply changes forms Review ****** Producers turn light energy into chemical energy which consumers eat and turn into sound energy...thermal energy and kinetic energy Sun Plants herbivores carnivores omnivores How is light made...ON THE MOVE...Let me explain!!! Nucleus---center of atom Neutrons---carry no charge and found in nucleus Protons---carry a positive charge and found in nucleus electrons---carry a negative charge and found in outside orbits Atomic structure Nucleus is the center of an atom... Proton carry a positive charge Neutrons carry no charge Electron orbit the nucleus They carry a negative charge **Positive charge of the protons keep the electrons from flying off into space ** Atoms want to have an equal number of protons and electron...this make them neutral....HAPPY ATOMS Electrons...jump orbits and when they do they release energy which we see as a burst of light...Photons Are all objects visible? Travels in straight line And...its fast...186,000 miles per second Sun light leaving our star reaches us in 8 minutes ONLY.... if reflection or refraction occurs Another REVIEW !!!! https://quizlet.com/ /flashcards Quizlet link Computer resources https://www.tes.com/lessons/YN1VGLUQtaJdTQ/editBlendspace Reflection..... So.... why do I see colors? Fact #1 we see white light when all the colors of the spectrum are reflected back into our eyes You see colors...when white light hits an object and all the colors are absorbed except for the color which you see---that color is reflected by the object and comes back to your eye. So red objects reflect red --- orange objects reflect orange --- green reflect green.... etc white light red green all other colors are absorbed Fact # 2 Fact #3 All the colors are absorbed and nothing is reflected back to the eye I see white I see black They are visible... They deal with reflection in some way we see all the colors of the spectrum as white light... so a white object-reflects ALL the colors at once back to our eyes All the colors of the spectrum are absorbed into the object and none of them are reflected...we see the absence of light as BLACK I understand the properties of light It is a form of energy!...(I can prove it!) 2. How it is produced 3. How it travels 4. How it interacts with objects Reflection involves a change in direction of waves when they bounce off a barrier. Refraction of waves involves a change in the direction of waves as they pass from one medium to another. Refraction, or the bending of the path of the waves, is accompanied by a change in speed and wavelength of the waves. Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. 2 Reflection...is when light bounces off an object types... Specular reflection-light bouncing off a mirror type surface...total flat and mirror like Diffuse reflection - light bouncing off an irregular,bumpy surface Important Law: the angle of incidence equal angle of reflection Refraction...the bending of light as it moves through different mediums It does not occur if light hits medium at a 90 degree angle The fish would be below because the light bends...as it refracts... Refraction causes the rainbow effect Light will bend towards the thickest part of a lens