An Introduction to Solar Energy, Force, and Motion ©Christine G. Schnittka, Ph.D. Unit Overview The goal in Save the Seabirds is to get the students to make connections between the plight of the sea birds, oil spills, energy consumption, alternative sources of energy for transportation, the role of engineering in society, and the engineering design process. Science Concepts Energy can be converted from one form to another Energy can be utilized in different ways such as high voltage for high speed and high current for high torque. Motors convert electrical energy into mechanical energy. Friction has constructive uses and predictable behavior. Engineering Concepts Engineers use a design process to solve real world problems. Engineers work within constraints (time, materials, space, money) and use scientific knowledge and creativity to design solutions to problems. Engineers design, test, re-design and re-test. They build prototypes based on their test data and document their designs and tests. Pre-Assessment Save The Seabirds is funded in part by the National Science Foundation. Therefore, we are required to pre- and post-test for this training. Thank You for participating! What is Engineering? Same presentation that was in Save the Penguins. ENGINEERS, WHAT IS WRONG WITH THIS PICTURE? Heron in Barataria Bay, Louisiana. Photo credit: Gerald Hebert Source: http://www.boston.com/bigpicture/2010/05/oil_reaches_louisiana_shores.html WHAT HAPPENED HERE? Photo credit: Charlie Riedel Source: http://www.boston.com/bigpicture/2010/06/caught_in_the_oil.html Photo credit: Charlie Riedel Source: http://www.boston.com/bigpicture/2010/06/caught_in_the_oil.html DO YOU REMEMBER THE 2010 OIL SPILL IN THE GULF OF MEXICO? Photo credit: US Coast Guard Source: http://cgvi.uscg.mil/media/main.php?g2_itemId=836285 WHAT HAPPENED? An oil rig named Deepwater Horizon exploded in the Gulf of Mexico on April 20, 2010. Eleven people working there died. The explosion caused oil to begin leaking out. It leaked for 87 days. WHAT ARE OIL RIGS? An oil rig is a structure built in the ocean to support pipes and drills used to remove oil from underground wells. There are many gas and oil rigs in the Gulf of Mexico. How many? 3858 – 1 (the one that exploded) = 3857 Image credit: NOAA Source: http://en.wikipedia.org/wiki/File:Gulf_Coast_Platforms.jpg Image credit: Caroline Higgins Source: http://technorati.com/lifestyle/article/oil-rig-explosion-off-the-coast/ HOW MUCH OIL LEAKED? 160 of these PER DAY A total of 800,000 gallons of oil PER DAY In total, it leaked an estimated 94,000,000 to 184,000,000 gallons. That is the equivalent of 35,000 swimming pools. WHERE WAS THE LEAK EXACTLY? The explosion and leak occurred 40 miles from the Louisiana coast and 1 mile underwater. Located here Image credit: Source: http://www.nytimes.com/interactive/2010/05/01/us/20100501oil-spill-tracker.html This image shows where in the Gulf the oil leaked. Source: http://www.nytimes.com/interactive/2010/05/01/us/20100501-oil-spilltracker.html WHY DO WE NEED OIL? To power all of this… MORE SPECIFICALLY, WE USE IT TO POWER THE COMBUSTION ENGINE. HOW DOES OIL MAKE AN ENGINE RUN? So, we use oil for transportation … Is this the only way for us to get the energy we need? WHAT ABOUT GETTING ENERGY FROM THE SUN? AN ENDLESS SOURCE OF CLEAN ENERGY? Solar energy can only power small vehicles, though. RIGHT?! WRONG! This is a solar bus in Australia called Tindo. It is currently being used for mass transportation! But, it can’t go very fast. Right? Wrong! This is a train engineers are proposing to use in Arizona. It will be powered by solar cells and will cut a trip through the desert that usually takes 2.5 hours down to a 30 minute zip! It will be called “The Bullet.” WHAT ABOUT WATER TRAVEL? NO PROBLEM! In Australia, they are currently using this fully solar powered ferry! WHAT DO AUSTRALIA AND ARIZONA HAVE IN COMMON? Very little cloud cover. That makes them great candidates for solar technology. What about the rest of the world? Can you still get energy from the sun with clouds in the sky? YES! In Belgium, which has a climate very similar to Canada, engineers have designed 2 miles of solar panels. With this, they can power 4000 trains! SUMMARY: If we change the way we get the energy we need to move people and things… to a clean energy source, such as solar energy, we can keep this… …from ever happening again. Photo credit: Charlie Riedel Source: http://www.boston.com/bigpicture/2010/06/caught_in_the_oil.html SO ENGINEERS, HOW ARE YOU GOING TO Storyboard Team name What is the problem? Matchbox Car What will happen when a shine a light on these cars? What is happening to the car that moved? Where does it get the energy to move? Either explain solar panels to the students or show a video clip. What kind of energy conversion is happening in the car? What happens when the car moves up the ramp? During all of these conversions, was any energy lost? Storyboard Make a storyboard entry about the solar car and the energy transformations that you observed. Choose one more topic to storyboard. Suggested topics: picture of how a combustion engine works seabirds and the oil spill define different kinds of energy
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