mechanical properties materials

Digestion - breaking down food into simpler forms. Digestion is both and chemical . The digestion may take place outside cells ( extracellular ) or within the cells ( intracellular ). Absorption - Taking in of food in the soluble forms into the tissues. The absorption may be passive (without ..

A mechanical wave is a periodic disturbance, which requires a material medium (solid, liquid or gas) for its propagation. These waves are also known as elastic waves because their propagation depends upon the elastic properties of the medium through which they pass. Ex..

Classification of Magnetic Materials - On the basis of their magnetic properties different materials are classified as: Diamagnetic substance Paramagnetic substance Ferromagnetic substan..

The adverse effects of particulates on materials include damages to electronic equipment through chemical or mechanical action on electrical contacts, erosion and soiling of buildings, sculptures and painted surfaces. Corrosion of metals (when the atmosphere is humid) also take..

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 def..

(e.g., O 2 , Cu 2 + , Fe 3 + ) are attracted by a magnetic field but lose their magnetism in the absence of the magnetic field. This property is shown by those substances whose atoms, ions or molecules contain unpaired electron..

A mechanical wave is a periodic disturbance, which requires a material medium (solid, liquid or gas) for its propagation. These waves are also known as elastic waves because their propagation depends upon the elastic properties of the medium through which they pa..

Electric bell suspended inside an airtight glass bell jar An electric bell is suspended inside an airtight glass bell jar connected with a vacuum pump. As the electric bell circuit is completed, the sound is heard. Now if the air is slowly removed from the bell jar by using a vacuum pump, the i..

At the cellular level, growth is the increase in the amount of protoplasm (nuclues + cytoplasm). During growth, the synthesis of complex molecules like proteins nucleic acids and carbohydrates is at a higher rate than the rate at which the complex molecules are broken down. During growth, the anabo..

Specific Defence Mechanism - This mechanism provides protection against specific foreign materials and is often called the immune system. This system forms the third line of body's defence against microbes and harmful molecules. The most important characteristic of the..