Speed Skating

We prepared a Glogster, to show what the original speed skating is all about!

Concerning "thermal vision"

Thermogram of a cat....uses older technology though.....part of the long aritcle on Wikipedia I sent you....thought you might like it! :)
Attr: http://en.wikipedia.org/wiki/File:Termografia_kot.jpg

So why is it called Energy drinks?

This is what I learned about Energy:
Energy is the ability to do Work. Thats what I have to remember whenever I hear about energy. It can not be destructed nor produced it can only be converted between different forms of energy storage, such as potential energy(energy of height), chemical energy (stored in chemical reactions), kinetic energy (energy of moving objects),internal energy(usually friction and therefore not easily re-convertable), thermal energy (stored in the form of heat and detectable by thermal visions) and elastic energy which is only applicable in elastic objects. Energy is usually represented in Joules. To understand energy conversions, I learned how to draw energy flow diagrams and how to use them to determine the different kinds of energy storage involved in a process. Further, to understand what the definition of energy really means I learned about work. Work is the change that is produced by a force and expressed by the formula force times distance. In the same way work defines energy it defines power which is the rate of work over time and usually expressed in Watts. I learned about the different possibilities to express thoughts about energy in the form of equations about kinetic, potential or elastic energy. Even though I learned a lot in this unit it also created some problems by adding many variables and equations to my system of physics so that I temporarily lost the overview. I have really improved in my organisational skill and usually find the right way through an equation even if it sometimes takes two tries to come to the right result. In this unit, my greatest strength which is to understand problems and reducing them to ideas and formulas was constantly tested, until I sometimes lost the overview. I will continue to become more familiar with my equations in order to master the conversion of energy.
Energy is all around us and one of the things that has always been interesting to me. The concept of energy is complex but easy at the same time. We use it when we run to school(chemical to kinetic), when we make a fire (chemical to thermal) or when we fly in a balloon. (cemical to thermal to potential).
To understand about energy was essential in my "physics quest", even if I still dont have a clue why its called and energy drink! :)

So how hard does Atlas need to pull?

As Newton already said, here is the calculation that shows, how big the force is that is needed to keep the moon in its orbit. I hope you enjoy the glogster.

Newton

Get a Voki now!

Additional fact about the orbit!

According to Newton, every particle of mass attracts each other particle of mass. Since the moon and the earth attract each other, the center of the orbitis not the center of the earth! The earth therefore rotates around itself while the moon rotates around  the earth. Look at this pricture:

Attributions: Thanks to wikipedia.org for these materials

Why does the moon keep its orbit around the earth?

The moon...
The only natural satellite of the earth has always attracted the minds and thoughts of humans. Starting the Egyptians humans tried to explain why the moon circles around the earth. Galileo studied the moon with its telescope wich helped im develop his theories but even he did not explain why the moon circles around the earth. But when Isaac Newton sat in the garden of his fathers farm and an apple dropped on his head he suddenly found the answer. (Of course this is just a legend!) Up to this point everyone knew that the earth attracted objects.(gravitation) Also widely known was that the earth circles around the sun. But only these two attractions could not explain the monthly circle of the moon around the earth. Isaac Newton finally developped the theory that the moon has to attract the earth too.He had the magnificent idea that every particle of mass attracts each other. This can be related to his third law. (Actio/Reactio) The gravitational force of the earth attracts the moon. In reaction, the moon attracts the earth with gravitational force.  This idea was the start of a project that a few years later resolved in a formula for universal gravitation between two objects. FG=(Gm1m2)/r^2 If we plug in the mass of the earth and the moon and add the radius between them, the resulting force of gravitation bewtween the moon and the earth explains the movement of the moon. Relating this to Newtons second law (F=ma) and the fact that the gravitational force of the earth is the only relevant force acting on the moon, the moon circles around the earth with a centripetal acceleration described by ac=v^2/r, where ac=Fg/m(m), because of (EF=FG=mac). Further Newtons idea helped develop the formula for the gravitation on the  moon surface:  g=GM/r^2 In both formulas concerning universal gravitation, there appears a big G. This is the gravitational constant that represents 6.67*10^-11 Nm^2/kg^2.

Newton may have only developed the idea and laws that helped solve this problem but in Physics, HE is the man who conquered the moon....