Thursday, 20 April 2017

Science

Today we started our Light and Optics unit. We completed textbook questions. Please make sure you have your journals and classroom supplies ready to go. Please bring a NEW Math journal for tomorrow to start Surface Area.

Here are the questions in case you misplaced them. They should be done for tomorrow.

1.      What is light?  Give 2 examples of natural light sources.  How is light from the Sun produced?  What is the temperature of the interior of the Sun?


2.     How does light travel from the Sun?  In what direction does light travel from the Sun?  What is radiation?  What is the difference between radiation and radiant energy?


3.     Give 5 examples of artificial light sources.  What is an artificial light source?  Why were they developed?

4.     What is light?  How can light be transformed?    Give 3 examples of energy transformations using light.  Describe each transformation and indicate which types of energy are involved.  What is intensity of light?  How does intensity affect the absorption of light by surfaces?  Give an example and explain it.


5.     We use light in our everyday language all the time.  List 5 examples of song titles or expressions using that refer to light.

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