1. HELICOPTER By: Jala and Tara

2. HELICOPTER

3. DESCRIPTION  Describe how the transportation device works  A helicopter is a vehicle, which flys high in the sky, and its capacity is very low.  Source: wiki.answers.com

4. MATERIALS  list the materials used to make the device  The frame is made of  Glass  Nylon fiber  Aluminum  Stainless steel  Titanium  Source: madehow.com

5.  Describe the energy changes that take place when the device operates  Starting in the engine fuel is ignited releasing heat energery and kinetic energy. In the form of rapidly expanding gasses  Source: ask.com

6.  Identify the forces acting when the device operates.  Translating tendency, settling with power, dynamic rollover, gyroscopic proceession  Source: helicopterpage.com

7.  Describe the motions that occur when the device operates  It depends on the helicopter. The sikorsky x-2 speed is over 250  Source: Inventors.about.com

8.  1. igor sikorsky and paul cornu invented the helicopter  2.the helicopter was first used in 1930  3. the helicopter used in world war 2  4. meatl, glass, nylon fiber, aluminum,stainless steel, titanium  Source: 1. inventors.about.com 2.trepconnect.umd.edu 3. trepconnect.umd.edu 4. madehow.com

9.  Describe how the transportaion device improved getting around  They can get news from it. And the lessons on how to fly a helicopter.  Source: answers.yahoo.com

10. IMPROVEMENTS OR MODIFICATIONS  They can carry cargo like food and clothes Also they can bring news reports to the news center Source: answers.com