earth science

Structure of the earth system Earth's history Earth in the solar syste..

Structure of the earth system Earth's history Earth in the solar syste..

Properties of earth materials Objects in the sky Changes in earth and sk..

To avoid the risk of electric shocks, the metal of an electrical appliance is 'earthed'. Earthed means to connect the metal case of the appliance to the earth (at zero potential) by means of a metal wire (copper) called the earth wire. One end of the ea..

Let m be the mass of a body on Earth. Its weight on Earth is given by the equati..

'Geo' means earth and 'thermal' means heat. Thus geothermal energy is that heat energy obtained from hot rocks present inside the earth..

Question: What is greenhouse effect? Answer: Earth is surrounded by an envelope of gases. Most of the solar radiation that reaches the earth is reflected back. However, some of the heat is absorbed by the gases like carbon dioxide that form an insulating layer around ..

Where F is the force, G = gravitational constant = 6.6734 x 10 - 1 1 Nm 2 /kg 2 m 1 = Mass of the Earth = 6 x 10 2 4 kg m 2 = Mass of the object = 1 kg d = distance between the object and the Earth = height from the ground + radius of the Earth Radius of the Earth..

The acceleration produced in any body due to the gravitational pull of the Earth does not depend on the mass of the bod..

Consider an object of mass m lying on or near the surface of the Earth. Let M e be the mass of the Earth and R e be its radius i.e., R e is the distance between the object and the centre of the Earth. According to Newton's law of gravitation, the force of attraction (F..