Question 1: Obtain two different size balls (bouncy type ball.)  This could be a tennis ball, racquetball, ping pong ball, kick ball, etc.  Once you have chosen your two balls, drop each ball, one at a time, from the same height.  Record how high each ball bounces back up.

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NOW, place the smaller ball directly on top of the larger ball.    The two balls should be touching.  Release the two balls at the same time.  The smaller ball should stay directly on top of the larger ball.    You may need to practice this until the two balls fall together and perpendicular to the floor.  Record how high each ball bounced  back up.

Explain, in detail, how the bounce of each ball changed.  Explain what happed using the information found in Chapter 7.

Question 2: Click on the Department of Energy sourceswebsite.    Click on each of the energy sources and read about each source.    Choose 7 of the 14 sources and write an essay about the 7 sources you chose.  Include in your essay how each source is produced, and how the source produces energy.  You will need to click on the renewable and fossil fuels to find the various energy sources, along with the nuclear.

Question 3: Watch the video about the Tacoma Narrows Bridge collapse.

Read through the Tacoma Narrows Bridge introduction, construction, opening and experimentation, the collapse, aftermath and reconstruction sections  (NOTE:  You can right click on the link and open in a new window or tab.  It makes it easier to view)  .

Write a detailed essay (2 COMPLETE PARAGRAPHS)  explaining how waves and vibrations played a part in the Tacoma Narrow Bridge disaster.(Please be advised that a simple copy/paste is not acceptable.  You need to write an original essay and cite your essay.)

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