Topics: Electromagnetic spectrum, particle vs. wave model of light, reflection and mirrors, ray diagrams for curved mirrors and lenses, ray diagrams for pinhole camera, snell's law and reflection, total internal reflection and critical angle, thin lens equation
Unit test on Tuesday (June 9)
Topics: Electromagnetic spectrum, particle vs. wave model of light, reflection and mirrors, ray diagrams for curved mirrors and lenses, ray diagrams for pinhole camera, snell's law and reflection, total internal reflection and critical angle, thin lens equation
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find at least one application/use/example of total internal reflection. Post this to the google doc here, along with your name and the website where you found the information.
Define - total internal reflection
Complete - refracion/Snell's law worksheet refraction lab - due Tuesday we will be doing another lab on Tuesday refraction quiz (2 questions) on Tuesday Refraction lab - due Friday May 22 - lab handout here if you have misplaced yours
Labs must be completed individually There will be a ray diagram quiz (closed book) on Friday. One question only. 1. Using the length of your camera, the height of the image, and a reasonable estimate of the object height, calculate the object distance.
2. One of the characteristics of images from a pinhole camera is that they tend to be slightly "fuzzy". What wave phenomenon at the pinhole can help explain the fuzziness? 3. Unlike a regular lens camera, a pinhole camera has no focal length. What is a focal length? 4. How would the length of time required for an exposure be different if your camera was twice as long (pinhole to paper distance)? You will need to look up how light intensity changes with distance from the source. complete notes that were handed out today (reflection and mirrors). If you have lost your copy, find a new one on the waves and light page of the website. Helpful websites for doing this . . . .
http://physics.info/ http://www.physicsclassroom.com/ "images with a pinhole" lab - due Monday May 4. Will not be collected in, but must be done.
bring a box (shoebox size or smaller) if you have one finish online simulation about the photoelectric effect and answer ALL questions
quiz Tuesday about wave and particle models of light and photoelectric effect. You do not need to memorize equations or constants, but just know how to use them. reminder - bring a laptop on Wednesday if you have one available.
Wednesday at lunch - a chance to improve your mark on the unit test. No notes/no textbook/no phones/no group work. You take your test and a blank sheet of paper. You make it clear that you understand what you got wrong and what the answer should be. Marks will not be awarded automatically - I will mark corrections and award marks on a case by case basis. Maximum of 50% of missed marks can be earned back. Friday - quiz on wave/particle models of light and photoelectric effect Tuesday - lab - images with a pinhole |
About meI teach science, and when I'm not doing that I chase my kids around. I love spending time outside and I really missed the snow last winter! Archives
June 2015
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