winding the spring on your mousetrap car‚ you store energy in the spring as potential energy. This stored potential energy will convert energy into kinetic energy as the mouse-trap car begins to move. But there is friction and in order to overcome friction you have to do more work. Friction converts energy into heat and sound which takes away energy from your motion‚ causing the car to stop as its energy is turned into other forms. When designing a mousetrap car‚ there are two variables that truly
Free Energy Potential energy Conservation of energy
2030. (2012‚ October 1). 2030 ‚ p. 5. Beydoun‚ M.‚ Powell‚ L.‚ & Wang‚ Y. (2008‚ March 3). The association of fast food‚ fruit and vegetable prices with dietary intakes among US adults: Is there modification by family income? Social Science and Medicine ‚ 2218-2230. Chew‚ K. (2011‚ September 26). Junk Food Costs More than Real Food: 4 Reasons We Keep Eating It F.A.C.T.S. (2012). Fast Food Facts in Brief. Retrieved September 20‚ 2012‚ from FastFoodMarketing: http://www.fastfoodmarketing.org/fast_food_facts_in_brief
Premium Nutrition Obesity Fast food
Solar powered cars have been said to be the future of renewable transportation and that they are supposed to be economically efficient and environmentally friendly. Though it may sound like pure science fiction‚ there is development happening around world that is bringing that notion into reality. As I researched thoroughly to create my conceptual model for solar cars‚ I asked myself this: Are solar vehicles even practical for the U.S.? Solar energy is the most abundant energy resource on earth
Premium Photovoltaics Solar power Solar cell
PEDIATRIC ORIGINAL ARTICLE Fast food‚ other food choices and body mass index in teenagers in the United Kingdom (ALSPAC): a structural equation modelling approach LK Fraser1‚ KL Edwards2‚ JE Cade3 and GP Clarke1 1 School of Geography‚ University of Leeds‚ Leeds‚ UK; 2Division of Biostatistics‚ University of Leeds‚ Leeds‚ UK and 3Nutritional Epidemiology Group‚ University of Leeds‚ Leeds‚ UK Objective: To assess the association between the consumption of fast food (FF) and body mass index
Premium Nutrition Obesity Fast food
Why do car accidents exist‚ and what would it be like without them in the future? Scientists in labs around the world are working to end or eliminate car crashes. Accidents are caused for many reasons‚ but human error is one of their main causes. Sometimes drivers go too fast for the weather conditions‚ when it is a good time to be more cautious. Drivers also pass each other when there is not enough time for the to get back in their lane. Complex technology is also being tested to
Premium Tram accident Automobile Doctor
Fast food restaurantA fast food restaurant‚ also known as a quick service restaurant (QSR) within the industry itself‚ is a specific type of restaurant characterized both by its fast food cuisine and by minimal table service. Food served in fast food restaurants typically caters to a "meat-sweet diet" and is offered from a limited menu; is cooked in bulk in advance and kept hot; is finished and packaged to order; and is usually available ready to take away‚ though seating may be provided. Fast food
Premium Fast food
Hybrid cars: Are Hybrid Cars Becoming Safer or More Harmful to the Environment? I. Introduction Hybrid cars have a very special technology because they boast two power sources: a regular gasoline engine and an electric motor powered by a huge battery unlike conventional cars which have only regular gasoline engine. These components generally work in tandem‚ though the exact mechanism varies depending on the car. When the car is at stop‚ the engine shuts off. While you push the accelerator
Premium Internal combustion engine Electric vehicle Rechargeable battery
automobile. The car has revolutionized transportation from the day a company named "Reo" sold its first car‚ the Curved Dashed Oldsmobile in 1901‚ to today. The topic of cars can be broken into many different categories‚ from SUV and sports to European and American. One maker of cars that has branched a lot in past years is Japan. Though we do not realize it‚ most of our cars come from Japan. The top car company as of 2011 is Toyota. Toyota is a Japanese automobile manufacturer that exports its cars all around
Premium Automobile Four-wheel drive Japan
freshly prepared food with their families in the home. Today however‚ many people‚ particularly young people‚ prefer to eat fast food such as hamburgers‚ fried chicken‚ or pizza. There are many problem when people used to eat fast food in present. It is dangers for health and body. There are many reasons why people used to eat fast food. There are many reasons for the popularity of fast food. One of the main Cause is the change in lifestyle. Many people in the Egypt are working long hours out of the home
Free Nutrition
1301-4438 16 September 2012 Fast Food Favorites Almost everyone enjoys to eating fast food because it is cheap. Many people these days prefer to eat food that makes their food fast and also they do not have to spend more than five dollars. This nation is surrounded with fast food restaurants and there is no one way people can miss one down their street and in every mall. I work at the mall and I tend to eat fast food since it is the only thing near me. My three favorite fast food restaurants which are
Premium Fast food Ice cream Milk