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# Mechanics

## difference between centre of mass and centre of gravity

Centre of mass and centre of gravity are often considered same terms,but actually they are two different terms. Center of mass is a point in a body where net force causes the body to move without rotation,while center of gravity is the point where whole weight of the body acts vertically downward. Centre of mass of a system is such a ...

## Difference between force and pressure

The difference between force and pressure is that “Force is an agency which moves or tends to move ,stops or tends to stop the motion of a body.Force is the vector quantity.While pressure is the force acting normally per unit area on the surface of a body.It is a scalar quantity. Relation between pressure and force Mathematically ,pressure can be ...

## Difference between renewable and non renewable energy sorces

Renewable and nonrenewable are two sources of energy.The resources of energy that can be regenerated again and again are called renewable energy resources.While the energy sources that cannot be regenerated again and again are called non renewable resources of energy.The Difference between renewable and nonrenewable sources of energy can be done on the basis of nature,cost,environment friendly,quantity etc.. Renewable energy ...

## Renewable energy sources list

“Renewable energy sources are those energy sources that can be regenerated quickly.”There are many sources of energy such as coal,oil and natural gas.These fuels are called fossil fuels.These fuels would not last forever.They are not recoverable.These sources are called non renewable energy sources.Renewable energy sources list is given below. Renewable energy sources list Energy from tides Energy from waves energy ...

## Difference between uniform and non uniform motion with examples

The basic difference between uniform and nonuniform motion is that:In uniform motion a body moves with constant speed such as Motion of earth around the sun .While in non uniform motion a body moves with variable speed such as Horse running in the race. Difference between uniform and non uniform motion with examples   Uniform motion Non Uniform motion In ...

## Difference between speed and velocity with examples

Speed and velocity are terms in motion.These are two different physical quantities.Speed is the distance covered by a body in unit time.It is a scalar quantity.While velocity is the displacement covered by a body in unit time.It is a vector quantity.   Difference between speed and velocity            Speed         Velocity Speed is ...

## Difference between kinetic energy and potential energy in tabular form

Kinetic energy and potential energy are the forms of mechanical energy.K.E is the energy possessed due to motion and P.E is the energy possessed due to position.These are two different forms of energy. Now! If you want to learn about the difference between kinetic energy and potential energy then you are at the right place.So stay with us for few ...

## Fundamental units and their definitions

Units The fixed and definite quantity taken as the standard of reference with which other quantities of the same kind are measured is defined as a “unit”. Fundamental Units The units of fundamental quantities are called “fundamental units”. For example, units of length, mass and time or those of fundamental units. Table lists all fundamental and supplementary units and their ...