Answer
Verified
360k+ views
Hint :Energy can be defined as the quantitative measure that is to be transferred to a work to perform work on. In other words, we can define it as the capacity of a body to do work. It is available in a large variety of forms as well. We can derive the unit of energy using these facts.
Complete Step By Step Answer:
As mentioned in the hint, energy is nothing but the capacity of a body to do work. Since energy is expressed in terms of work, we can say that energy has the same unit as that of work.
Work done can be defined as the force required to cause a displacement in a body. In other words, it is the product of force and displacement.
$ W = F \times d = (kgm{s^{ - 2}}) \times m = kg{m^2}{s^{ - 2}} $
Thus the unit of energy can also be expressed as $ kg{m^2}{s^{ - 2}} $ .
However, this international unit is given in honour of the scientist who contributed to the development of the concept of energy. The name of the scientist was James Prescott Joule and honouring him, the SI unit of energy is given as ‘Joule’.
Thus, we can conclude that option C is the correct answer among the given options.
Note :
Energy is abundantly available in different forms including kinetic energy, potential energy, mechanical energy, electrical energy, thermal energy, heat energy and so on. All these quantities have the same SI unit and all of them are expressed in terms of joules. As the rest of the options we know that the unit of force is newton. The S.I unit for Mass is kilogram. The S.I unit of power is unit.
Complete Step By Step Answer:
As mentioned in the hint, energy is nothing but the capacity of a body to do work. Since energy is expressed in terms of work, we can say that energy has the same unit as that of work.
Work done can be defined as the force required to cause a displacement in a body. In other words, it is the product of force and displacement.
$ W = F \times d = (kgm{s^{ - 2}}) \times m = kg{m^2}{s^{ - 2}} $
Thus the unit of energy can also be expressed as $ kg{m^2}{s^{ - 2}} $ .
However, this international unit is given in honour of the scientist who contributed to the development of the concept of energy. The name of the scientist was James Prescott Joule and honouring him, the SI unit of energy is given as ‘Joule’.
Thus, we can conclude that option C is the correct answer among the given options.
Note :
Energy is abundantly available in different forms including kinetic energy, potential energy, mechanical energy, electrical energy, thermal energy, heat energy and so on. All these quantities have the same SI unit and all of them are expressed in terms of joules. As the rest of the options we know that the unit of force is newton. The S.I unit for Mass is kilogram. The S.I unit of power is unit.
Recently Updated Pages
Draw a labelled diagram of DC motor class 10 physics CBSE
A rod flies with constant velocity past a mark which class 10 physics CBSE
Why are spaceships provided with heat shields class 10 physics CBSE
What is reflection Write the laws of reflection class 10 physics CBSE
What is the magnetic energy density in terms of standard class 10 physics CBSE
Write any two differences between a binocular and a class 10 physics CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Name 10 Living and Non living things class 9 biology CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE
Select the word that is correctly spelled a Twelveth class 10 english CBSE
Fill the blanks with proper collective nouns 1 A of class 10 english CBSE