Have you ever ridden a Roller Coaster? People think that roller coasters are not educational, but in many ways they are. Roller Coasters use physics. Depending on the the type roller coaster you see how friction, gravity, potential energy, and kinetic energy is used. On a simple roller coaster, it uses force and potential energy to start. Potential energy is energy that is stored in an object.Then the roller coaster uses gravity to go down. Slowly when there are twists and turns, the roller coaster uses friction to slow down. It keeps on going and when it stops it uses friction and kinetic energy. Kinetic energy is energy in motion. People don't usually think that roller coasters use physics, but they do!
Information from- http://search.eb.com/coasters/ride.html
Motion, Force, and Energy Science textbook Tuesday, February 24, 2009
Roller Coasters in Physics
Have you ever ridden a Roller Coaster? People think that roller coasters are not educational, but in many ways they are. Roller Coasters use physics. Depending on the the type roller coaster you see how friction, gravity, potential energy, and kinetic energy is used. On a simple roller coaster, it uses force and potential energy to start. Potential energy is energy that is stored in an object.Then the roller coaster uses gravity to go down. Slowly when there are twists and turns, the roller coaster uses friction to slow down. It keeps on going and when it stops it uses friction and kinetic energy. Kinetic energy is energy in motion. People don't usually think that roller coasters use physics, but they do!
Information from- http://search.eb.com/coasters/ride.html
Motion, Force, and Energy Science textbook 
SS- Gaza reconstruction
Gaza is just a strip of land between Israel and Egypt. Right now the U.S is giving about $900 million for the reconstruction after war. The money is being sent to Gaza recover from Israel's offensive against Hamas last month. This money is coming from the Obama administration. United States Secretary of State is supposed to visit Gaza in the first week of March. She will attend the International Donors Conference on March 2ND to discuss the reconstruction Gaza needs. She is going there so the leaders can come together to think of a solution. Talks on renewing harmony are scheduled to begin in Egypt on Wednesday. This talk will be between Hamas and Abbas' Fatah movement. "This (new unity) government must have the acceptance and recognition of all parties," said Abbas. I think it is very good that people are getting together to help each other out. I am very excited to see what happens between Hamas and Egypt.
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Tuesday, February 3, 2009
Earthquake In NJ!!
On Monday February 2, 2009 the people in several towns in Morris County witnessed an earthquake! The magnitude of the earthquake was a 3.0. The largest earthquake in NJ was in 1974 with a magnitude 4.0. This happened on on Oct. 19, 1985. The most earthquake that we had on Monday surprised many people. They did no expect to have one. "It was unbelievable. I was sitting on the couch watching the TV, and it felt like an explosion right in my fireplace," said Hans Karl. Hans Karl was one of the people who had the floor beneath them shake. People living in Parsippany to Hackettstown to Bernardsville said that they felt something shake underneath them. In the end, it was stated that no one was injured or dead. Everyone who witnessed this earthquake was ok. I think this is really cool how we had an earhquake. I didn't think that there could be earthquakes in New Jersey, but I guess Iwas wrong.
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