physics of plasmas

Plasma are much like gases except that their constituent particles have become electrically charged, and their behavior in consequence depends strongly upon electromagnetic forces. Most of the matter in the universe is in the plasma state. A fluorescent tube contains plasm..

The States of Matter - Matter occurs in four states: Solid, Liquid, Gas and Plasma..

Matter and Materials - Matter exists in several phases. If we look at all objects around us, we perceive that some materials have a definite shape and occupy a definite amount of space or volume. We call these materials solids and we can name many objects that are solids. We say that solids have a ..

The solar system consists of the sun and all the objects that travel around it. The solar system includes the earth and eight other planets, along with the satellites (moons) that travel around most of them; planet like objects called asteroids; chunks of iron and stone called meteoroids; bod..

The solar system consists of the sun and all the objects that travel around it. The solar system includes the earth and eight other planets, along with the satellites (moons) that travel around most of them; planet like objects called asteroids; chunks of iron and stone called meteoroids; bodies of..

The Solar System - The solar system consists of the sun and all the objects that travel around it. The solar system includes the earth and eight other planets, along with the satellites (moons) that travel around most of them; planet like objects called asteroids; chunks of iron and stone called me..

> kilometers from the earth. Sun's light travels at a great speed of 3x10 5 kilometers per second, and takes about 8 minutes to reach us. Light takes about 4.3 years to reach us from the next nearest star called Alpha Centauri. The sun is a mass of hot gases, about 109 times bigger in size than the..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Direction of a magneti..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Direction of a magneti..

Summary - In lower organisms, there is no transport system as the cells are in touch with the surrounding medium. The transport is by the physical processes like diffusion, osmosis, etc. With the advancement in structure, the organisms have to evolve methods to transport nutrients and was..