5 compound machines

Simple Machines - In all the above examples, a machine either multiplies or reduces the effect of the force that is applied. A bicycle is a machine which is used to gain speed. We gain speed by exerting additional force. When we try to ride a bicycle up a steep hill, w..

The transmission of power is made use of in hydraulic machines where a small force applied at one point is made to exert a much larger force at some other point. This principle is made use of in the working of a hydraulic press and hydraulic brake..

Before surgeons can perform open-heart surgery or heart transplants or even to correct a simple heart defect, they have to be able to open up the heart and expose the chambers. To enable this, circulation and respiration are maintained by the heart - lung machine. The function of the hear..

Nitrogen combines with certain compounds on strong heating. For example, With calcium carbide: Calcium cyanamide, aluminium nitride and magnesium nitride hydrolyze on boiling with water to give ammonia...

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The compounds containing two or more halogen atoms are called inter halogen compounds. Each halogen combines with every other halogen to form interhalogen compounds. For e.g., ClF, ICl 3 , BrF 5 etc. They are of two types: (i) Neutral molecules containing two..

Nitro compounds are characterized by the presence of nitro group (-NO 2 ) in their molecules. They may be aliphatic or aromatic compounds according to whether the nitro group is attached to alkyl or aryl groups. R - NO 2 Aliphatic nitro compounds Ar - NO 2 Aromatic nit..

Compound Microscope - A compound microscope is an optical instrument which is used to magnify very small objects like blood cells, bacteria which otherwise cannot be seen with the naked eye. A Laboratory Model of Compound Microscope The essential parts of a compou..

A compound microscope is an optical instrument which is used to magnify very small objects like blood cells, bacteria which otherwise cannot be seen with the naked eye. A Laboratory Model of Compound Microscope The essential parts of a compound microscope are two conve..

When a ring of three or more carbon atoms resembling aliphatic compounds are contained in homocyclic or carbocyclic compounds, they are called alicyclic compounds. The saturated alicyclic hydrocarbons have the general formula C n H 2 n . Typical alicyclic compou..