Final+Essays

Review for Final Exam 2007-2008**
 * Science, Technology, & More!

Select a form of technology that transforms electrical energy. Trace the energy from its natural source to its ultimate fate. Why is efficiency always less than 100%?
 * Forms of Energy**

“Simple machines have the ability to change certain properties of work, but not the amount of energy involved.” Select a machine and explain the meaning of this statement.
 * Mechanical Energy**

Explain how the first four alkanes are related to each other. What are they made of? What are their properties?
 * Hydrocarbon Energy**

What is the difference between AM and FM radio waves? How are they produced? How are they related to other electromagnetic waves?
 * Transmitting Information**

Explain how information is stored on cassette tapes and floppy discs. How does the information get recorded? How does it get played back?
 * Storing Information**

How does a scanner convert a color image into a data file? How is this similar to the processes of a color printer?
 * Information Processing**

Explain how a rocket ship can increase its acceleration. What should it do to its thrust and its cargo? What happens when its fuel runs out?
 * Rockets & Propulsion**

What is a geosynchronous orbit? What are geosynchronous satellites good for? Why?
 * Satellites & Planets**

Explain how the elements of the universe were created. Why does the song say “We are stardust”?
 * Cosmology**