Saturday, September 29, 2007

About the long test...

Shocks...,I don't want to fail again in our long test for the 2nd grading ,but it looks like i'm failing again...huhuhu.. Well,I really have to listen carefully to Mr. Mome cause it's only my chance....wah!!!

Posted by Jennylyn Susaya III- Linnaeus at 3:57 AM

About the long test...

Shocks...,I don't want to fail again in our long test for the 2nd grading ,but it looks like i'm failing again...huhuhu.. Well,I really have to listen carefully to Mr. Mome cause it's only my chance....wah!!!

Posted by Jennylyn Susaya III- Linnaeus at 3:57 AM

Friday, September 14, 2007

Einstein's Mass Energy Equation

E=mc²

E= stands for units of energy(work unit)
M= stands for mass
C=stands for the speed of light

Einstein's equation states that mass and energy are directly proportional to each other. It means that a given amount of mass is equal to a specific amount of energy.


Nuclear fusion> A lighter nucleus combined with another to form a heavier nucleus.
Nuclear fission> Heavy nuclei splits to form another nuclei.
Binding Energy> Is the energy that holds the nucleus together.

Posted by Jennylyn Susaya III- Linnaeus at 4:30 AM

Thursday, September 13, 2007

Fundamental Force

G-gravitational=mass(m)
E-Electric=charge of particles(q)
++,--repel while +-attract
W-weak
S-strong
*The weak and strong force are also the Nuclear Forces

Z=No. of protons Alpha= helium ions
X=element Beta=Electrons
A=mass number Gamma=radiation energy

Posted by Jennylyn Susaya III- Linnaeus at 4:17 AM

Wednesday, September 12, 2007

Types of Ionizing Radiation

X-rays and Gamma rays> They have great penetrating power thats why they can pass the human body. For us humans, thick barriers of concrete, lead or water is our protection from them.

Alpha particles> In the form of atomic nuclei,they consist of 2 protons and 2 neutrons. They also have large large size, thats the reason why they easily lose their energy quickly. Therefore they have little penetrating power but and can just only be stop by the first layer of our skin.
Cosmic Radiation> This ionizing radiation consists of energetic particles. At higher sea levels it is more intense. This is where our earth's atmosphere is most dense that gives much protection.

Neutrons> These are particles that come from fissioning or splitting of an atom. They are very penetrating. We use water and concrete also for protection against this type of radiation.

Posted by Jennylyn Susaya III- Linnaeus at 3:59 PM