Natural Phenomena: Earthquakes, Lightning & Weather

Earthquake is the most destructive in terms of loss of life and property in India.

Like charges repel and unlike charges attract each other.

Earth consists of 3 layers crust mantle and core, crest being the outermost c.

An electroscope is a device that can be used to test for the presence of charge, or that can be charged. An electroscope is made from conducting material (generally metal). Charge is free to flow on a conductor, and if you put charge at a particular point it will distribute itself over the surface of the conductor.

Cooking is a man made process not a natural phenomenon.

an earthquake that registers 5.0 on the Richter scale has a shaking amplitude 10 times that of an earthquake that registered 4.0, and thus corresponds to a release of energy 31.6 times that released by the lesser earthquake. hence, an earthquake measuring 7 or more on Richter scale can cause severe damage to life and property.

Rubbing is a way to charge objects.

weathering is the breaking down of rocks.

when plastic comb is rubbed with dry air, static electricity is created an hence a small charge is acquired by it.

When a charged body is touched by a human being, the excess charge flows to the earth (earthing) and therefore the charge is lost.

Moving air is called wind.

Copper is a very good conductor of heat and is even used in making wires. It is not an insulator.

Air in the atmosphere exerts pressure in all directions.

Storm is a violent disturbance of the atmosphere with strong winds and usually rain, thunder, lightning, or snow.

a sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.

Electric current is due to moving charges.

The process of flow of extra charge back to earth is known as earthing.

Lightening is caused due to accumulation of charges on clouds.

Magnitude of earthquake is measured with the help of Richter scale.

A lightning rod or lightning conductor is a metal rod or metallic object mounted on top of an elevated structure, such as a building, a ship, or even a tree, electrically bonded using a wire or electrical conductor to interface with ground or earth through an electrode, engineered to protect buildings from lightening.