Universe Infinite Finite

Introduction to universe infinite finite:

Before the study of this topic, the first question arises that what is universe. The space in which the galaxies, black holes, solar systems, suns, moons and millions of others celestial bodies is called universe. Ancient philosophers believed that earth is the centre of the universe, around which everything else in the universe revolved. They even thought that the earth to be flat in shape. To understand the creation of the universe, we had to first learn a lot about the earth and the solar system, galaxies and so on. Here we discuss how the universe is expanding. I like to share this Electromagnetic Pulse Effects with you all through my article.


Modern theories on Universe


There are several modern theories about the beginning of the universe and its future. Now the scientists think that the big bang theory offers the best explanation about the universe. This theory was proposed when the scientists concluded that the universe is expanding. In 1920, Professor Edwin Hubble observed that the frequency of light coming from far off galaxies decreased, i.e., the frequency of the light coming from the far off galaxies showed a red shift. Professor Edwin Hubble studied these red shifts carefully and concluded as follows:

All galaxies are moving away from each other.
The speed with which any two galaxies move away from each other is directly proportional to the distance between them. This is called the Hubble’s law. The larger the distance between two galaxies, faster they move away from each other.
In other words, from the observed red shift, the frequency of light coming from the far off galaxies, Professor Edwin Hubble concluded that the universe is expanding. Thus, the universe is infinite in size.


Conclusion on universe whether it is infinite or finite


The future of the universe is totally depending on the mass of the universe. If the mass is large enough, gravitational attraction will slow down the expansion and eventually stop it. After that, the galaxies will move towards each other due to the gravitational force between them. They will merge in the one lump of the super dense material. Again, a big bang will take place and a new universe will be created. Therefore, we will have an oscillating universe.

Properties of Matter Solid

Introduction to Properties of Matter Solid:
Let us see about the properties of matter solid. Matter is prepared by molecules and atoms.  We have three states of matter. The three state of matter is differing from each other because of the difference in the magnitude in the intermolecular forces. One of the states is Solid. The solid has an exact shape and size.

Solids possess a definite shape and volume at ordinary temperature. Depending on the arrangement of atoms the properties of solid varies. Based on their internal structure, solids matter are classified into two types- crystalline and amorphous.


Types of Solids:


Based on their internal structure, solids matter are classified into two types. They are,

Crystalline
Amorphous


Crystalline Solid:

The properties are, atoms are arranged in a regular, repeated and periodic pattern in crystalline solids. This orderly arrangement of atoms resembles that of brick laying by masons. Examples of crystalline solids are diamonds, quartz, rocksalt, mica, sugar, metals, etc.

Amorphous solid:

The properties are, atoms are set in a disorderly manner in amorphous solid. The best case of an amorphous solid is glass. Other examples are plastic materials, wood, etc.


Elasticity:

An external force ‘F’ is applied on the body of mass ‘m’, the body acquire an acceleration ‘a’ such that a=F/m. Due to the change, the body may suffer a deformation. This external force is known as deforming force.

As the body is deformed, internal forces are set up within the body, which tends to bring the body back to the original shape. The force developed within the body on account of relative molecular displacement is called internal force or elastic force or restoring force.

Elasticity is the properties of the material of a body by virtue of which the body regains its original shape when the deforming force is removed. Few bodies, which do not show any tendency to recover their original shape after the removal of deforming force. Such bodies are called plastic bodies.

The property by virtue of which the body does not regain its original shape after the removal of the deforming force is called plasticity. The restoring force developed per unit area of the body is called as stress. Its unit is Nm-2. The strain produced in a body is defined as the ration of change in dimension to its original dimension. The maximum value of stress within which a body regains its original state is called elastic limit.

Hooke’s law states that within the elastic limit of the body, the stress is proportional to the strain produced.

Stress/ strain= a constant.

Using this formula, we get a constant is known as modulus of elasticity.

Table of Physical Constant

Introduction to physical constant:

A physical constant is one of the physical quantity which generally has a constant value for all mediums and all changes in the body or object and it is also assumed that the value of the physical constant is universally constant in nature as well as it is universally constant in time. The mathematical constant is different from the physical constant because in mathematics the constant has a fixed value but when we calculate it, then they do not undergoes any physical measurement of any object or system. I like to share this Equation for Average Speed with you all through my article.


Table of values of Physical Constants:

The table of physical constants is nothing but a table which has listed most of the physical constant which are used in study related to physics with their values and the respective units. The table of physical constant may contain the entire physical constant and a few constants depending on the requirements. The physical constants are also used with some of the prefixes. These prefixes must be used when defining the value of the physical constant in the table.
 

                                         Table showing some physical constants



Conclusion for the physical constants


Thus a table of physical constant can contain not only the constant names but it includes the symbol of physical constant and the value of the physical constant and the unit of the physical constant either it is SI or c.g.s. and last but not the least, the prefixes used with that physical constant. The physical constants can have the dimensions depending on the measurement taken by it and some of the physical constant exists in nature which does not have any dimension. That means, when the physical constant evolves in any system then there is a change that occurs in the system which is described in such a manner that the overall unit of the quantity is null.

Teach High School Physics

Introduction to teach high school physics:
High school is the stage when the student is in tenth standard. When the student is in tenth standard, it is the first time when the student is giving the boards examination first time. Therefore, this stage is very important regarding the studies. Let us discuss that what are the important and marks scoring topics in the physics so that the student gain the very good marks.

Teaching of high school physics

Let us discuss the important topics of the physics at the high school standard which are marks scoring. The very first important and the interesting topic is optics. It is the branch of physics in which we deals about the reflection, refraction, dispersion of light. This is the geometrical optics, which we study in the high school. As we see our image in the mirror it is the example of reflection. As we see the coin inside the water it is the example of refraction. As the light passes from the prism it splits in the seven colors, it is the example of dispersion. Microscopes, telescopes, human eye and the defects of the vision also study in the high school physics. The second main topics are the electricity. In the electricity we deals with the current, resistance, ohm’s law, resistivity, temperature dependence of the resistance, series and the parallel combination of the resistances. The amount of the electric energy consumed, power loss are the topics, which are read in the high school physics. The main part of the electricity is electromagnetism and the electromagnetic induction, in which we study about the principle and working of the generator, we study about the Faraday’s law of electromagnetic induction, Lenz’s law, right hand rule, left hand rule and the screw rule. After that, we have to study about the sources of energy and the universe and solar system. These last topics are very easy as compared to the early ones. Having problem with The Shorter the Wavelength of Visible Light the keep reading my upcoming posts, i will try to help you.

Conclusion for teaching high school physics

Here from the above discussion we can conclude that the topics, which are read in the high school, are the base of the intermediate standard. So it is advised to study the high school physics with the great interest and in detail so there is no difficulty in the further studies.

Three Types of Deserts

Introduction to deserts:

A landscape that receives a very low amount of rainfall is called as Desert. Deserts are the areas with average annual precipitation of less than 250 millimeters (10 in) per year, or as areas where more water is lost by evapotranspiration than falls as precipitation. Desert is the place where plants can’t grow because of the low rainfall. Let us see some main classifications of desert. I like to share this Kinematics Problems with you all through my article.



Monsoon deserts

The word ‘Monsoon’ derived from the Arabic word ‘season’. Because of the drastic changes in the temperature between the continents and the oceans, Monsoons are developed. The southeast wind of the Indian Ocean leads heavy summer rains in India mostly in coastal regions. When the monsoon crosses India, it loses its moisture on coastal Aravalli Range. The Thar Desert of India and pakistan is the part of a monsoon desert region west.


Polar deserts:


Polar deserts are rich in rain fall and it has precipitation per year is less than 250 millimeters and a mean temperature is less than 10° C. In the world, polar deserts totally cover 5 million square kilometers. Sand dunes are not important features in these types of deserts while snow dunes are usually occurs only in low rain fall areas. Please express your views of this topic Permanent Magnet Definition by commenting on blog.


Hot and Dry deserts:


Hot deserts are usually present around the equator. Hot and dry deserts are warm around the year and very hot in the summer. And it has low humidity. It has little rain fall in winter. Very Small but heavy storms are occurs often. The Soil presents in this type of desert is too hard and rocky. Burrowing mammals, insects and reptiles are the main creatures living there. The Sandy Desert of Australia, the Sahara of North Africa (largest desert in the world) the Sonoran Desert of Arizona and northwestern Mexico fall under this category.

Issac Newtons Law

ISSAC NEWTON'S LAW

About Sir Isaac Newton’s:

Sir Isaac Newton’s was one of the greatest scientists and mathematicians that ever live. He was born in England on December 25th, 1643. He was born the similar year that Galileo died. He lived for 85 years.

Isaac Newton was raise by his grandmother. He attends Free Grammar School and then went on to Trinity College Cambridge. Newton work his way through college. While at college he becomes interested in math, physics, and astronomy. Newton usual both a bachelors and masters degree. I like to share this newton's law of cooling equation with you all through my article.



Newton’s First Law of motion:

An object at rest will stay at relax unless acted on by an unequal force. Objects in motion continue in motion with the same speed and in the same speed and in the same direction unless acted upon by an unequal force.

This law is often called "the law of inertia".

This means that there is a natural propensity of objects to keep on doing what they're doing. All objects stand firm changes in their state of motion. In the absence of an unequal force, an object in motion will

Keep this state of motion.


Newton’s Second Law of motion:


When a force acts on a mass the acceleration is produced.The greater the mass (of the object being accelerated) the larger the amount of force needed (to accelerate the object).

Everyone automatically knows the Second Law. Everyone knows that heavier objects need more force to move the same distance as lighter objects.

But, the Second Law of motion gives us an exact relationship between force, mass, and acceleration. It can be expressed as a mathematical equation:

F = M X A
or
FORCE = MASS times ACCELERATION


Newton’s Third Law of motion:


The Newton’s third law is, meant for every action there is an equal and opposite re-action.This means that for each force there is a reaction force that is equal in size, but opposite in direction. That is to say that at any time an object push another object it gets pushed back in the opposite direction equally hard.

Sir Isaac Newton Science

Sir Isaac Newton Science

Sir Isaac Newton was an English physicist, mathematician, and astronomer, who is widely considered as one of the most influential people in human history. His 1687 publication of the Philosophiæ Naturalis Principia Mathematica (usually called the Principia) is considered to be among the most influential books in the history of science, laying the groundwork for most of classical mechanics. In this work, Newton described universal gravitation and the three laws of motion which continues an important role in the scientific view of the physical universe for the next three centuries. Newton also built the first practical reflecting telescope and developed a theory of colour based on the observation of a prism. He also formulated an empirical law of cooling and studied the speed of sound. I like to share this heat capacity equation with you all through my article.



Sir Isaac Newton's Science:


Newton investigated the refraction of light, demonstrating that a prism could decompose white light into a spectrum of colours, and that a lens and a second prism could do the reverse.

His studies proved that coloured light does not change its properties by separating out a coloured beam and shining it on various objects. Newton noted that regardless of whether it was reflected or scattered or transmitted, it stayed the same colour. Thus when objects interact with already-colored light, colour is produced. This is known as Newton's theory of colour. From this work, he concluded that the the dispersion of light into colours can be seen in lens of any refracting telescope. Newton’s contribution to the Law of Gravity is phenomenal and is regarded one of the major break-throughs in the world of Science.



Sir Isaac Newton’s Laws of Motion:


The famous three laws of motion are:

Sir Isaac Newton's First Law (also known as the Law of Inertia) states that an object at rest tends to stay at rest and that an object in uniform motion tends to stay in uniform motion unless acted upon by a net external force.

Sir Isaac Newton's Second Law states that an applied force on an object equals the rate of change of its momentum, with time.

Sir Isaac Newton's Third Law states that for every action there is an equal and opposite reaction