Introduction
In your life you've probably encountered some neat phenomenon about light. Such examples might include the reflection of light rays, or questions about the speed at which light travels. In this activity, we will learn about light and energy. "Energy?" you might ask, well it turns out that light has a relationship to energy and vice-versa.
By clicking on the web resources below you will interview some interesting people, like the most brilliant Albert Einstein!At the end of this lesson , we should know what light is and what cool applications of light are used everyday. So, to learn more about light, click on the resources and read silently.
At the end of the first topic you are required to answer the mastery quiz . While reading between lines in the slide show presentation you will encounter some questions which you need to answer in order to proceed to the next topic. After reading with comprehension answer the following questions .
This is an individual activity, therefore you are expected to answer the questions independently based on your own understanding. Use one whole sheet of paper as answer sheets and you may take down notes for your future reference. Start reading now and enjoy hunting.
Questions
Interference
1. What brings about the striking colors we see in soap bubbles? How does it happen?
2. When do waves reinforce each other? When do waves annul each other?
3. What causes the spectrum of colors seen in gasoline splotches on a wet street? Why are these not seen on a dry street?
Diffraction
1. What happen when light pass around obstacles?
2. Do sharp objects cast sharp shadows?
3. Is diffraction more pronounced through a small opening or through a large opening?
Polarization
1. Can Polaroid sunglasses protect our eyes from intense glare? How do Polaroid sunglasses protect our eyes from the strong reflections of sunlight?
2. What is the advantage of Polaroid sunglasses over regular sunglasses?
Light
1.What is light? Is light a matter? Explain.
2. How light is measured?Light Duality1. What evidence can you cite for the wave nature of light? For the particle nature of light?
Reflection
1. What does incident light that falls on an object do to the electrons in the atom of an object?
Refraction
1. How does the angle at which a ray of light strikes a prism compare with the angle at which it passes out the other side?
2. Does refraction make a swimming pool seem deeper or shallower?
Dispersion
1. What prevents a rainbow from being seen as complete circles?
2. Does a single raindrop illuminated by sunlight disperse a spectrum of colors?
Total Internal Reflection
1. What is meant by critical angle?
2. When is light totally reflected in a diamond?
3. Light normally travels in straight lines, but it “bend” in an optical fiber. Explain
Lenses
1. What kind of lens can be used can be used to produce a real image? A virtual image?
Web Resources:
INTERFERENCE, DIFFRACTION, POLARIZATION
Slide show presentation about INTERFERENCE, DIFFRACTION, and POLARIZATIONfound in my computer dost02(D)( click this to answer questions IN INTERFERENCE, DIFFRACTION, POLARIZATION)
Directions:
1. Just click start
2. Then my computer.
3. Select and open dost02(D)
4. Just click the folder DOST, then select the topics mention above.
LIGHT
http://library.thinkquest.org/11924/light.html
( click this to answer question 1 : LIGHT) Slide show presentation ABOUT WHY DO WE STUDY LIGHTfound in my computer dost02(D) ( click this to answer question:2 LIGHT)
Directions:
1. Just click start
2. Then my computer.
3. Select and open dost02(D)
4. Just click the folder DOST, then select the topics mention above
REFLECTION , REFRACTION, DISPERSION, TOTAL INTERNAL REFLECTION & LENSES. LIGHT DUALITY
http://sol.sci.uop.edu/~jfalward/physics17/chapter12/chapter12.html
( click this to answer question 1 : REFLECTION, questions 1-2: REFRACTION, 1-2 IN DISPERSION, 1-3 TOTAL INTERNAL REFLECTION, 1 IN LENSES)
The Big Question
Make up a multiple-choice questions that would check a classmate's understanding of reflection, refraction, diffraction, interference, and polarization. ( five questions per topic)
1 comment:
Congratulation for a well done "On-Line Treasure Hunt." I hope you can proceed to the Webquest and implement one or more Web Enhanced Learning Activity.
Post a Comment