CHEMICAL BOND
It is a strong force of attraction, which holds together the atoms in a molecule or crystal. A chemical bond usually has energies of the order of 1000 kj/Mol. A chemical bond may be formed, because of two reasons;
To complete the octet of the […]
PERIODICITY IN PROPERTIES
On moving along the elements of the periodic table in the order of atomic number there is a regular gradation in the properties of the elements. This is due to the similar outer electronic configuration of these elements. Some of the few gradations in the properties […]
THE LIQUID STATE
What is a liquid?
A liquid is a state of matter between that of a crystalline solid and a gas. A liquid is composed of molecules that are constantly and randomly moving about, each undergoing billions of collisions per second. However, strong attractive forces of the […]
MAGNETIC PROPERTIES OF MATTER
COULOMB’S LAW
The force of attraction or repulsion two magnetic poles is proportional to the product of the pole strengths of the two poles and inversely proportional to the square of the distance between them. Thus,
F = m0qm1qm2/4pr2
MAGNETIC SCALAR POTENTIAL DUE TO A POINT POLE
The magnetic scalar potential is defined as the work […]
ELECTROSTATICS
COULOMB’S LAW
this law was published by Charles Coulomb in 1785. according to this law, ‘ the force of attraction between two charged particles is given by
F = q1q2/4pe0d2
here e0 is the permittivity of the free space. this force is referred to as […]
EARTH’S GRAVITY
Earth’s gravity is defined as the force by which the earth attracts a body towards its centre. It is due to this force that a body thrown with a certain upward velocity ultimately fall back on the surface of the earth. The acceleration that a body gets when falling freely from a height towards […]
FORCE AND ITS EFFECTS
A force is defined as that cause that changes or tends to change the state of rest or of uniform motion of a body in a straight line.
We are familiar with different effects of force, push, pulls, lift etc. We have also come across […]
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