Define law of conservation energy?
Answers
Answered by
4
HI there !!
Law of Conservation of Energy states that Energy can neither be created nor be destroyed,It can be transferred from one object to another and can be transformed from one form to another form.
Mechanical Energy = Potential Energy + Kinetic Energy
First of all lets take a look at the two types of Mechanical Energy :
Do you know what are the types of mechanical Energy ?
Answer :
Two Types of Mechanical Energy are :
<>Potential Energy
<>Kinetic Energy
⇒Potential Energy :-
Potential Energy is the Energy possessed by a body by virtue of its height or by virtue of its strained configuration
Potential Energy = mgh , m = mass , g = acceleration due to gravity , h = height
Can you list some examples ??
Here are some examples ....
A stretched rubber band , a winded spring , Water stored in a dam , Bow and Arrow.
⇒Kinetic Energy:-
Energy possessed by a body by virtue of its motion.
All moving bodies possess Kinetic Energy
Kinetic Energy = 1/2 mv² , m = mass , v = velocity
Here are some examples .....
Running athlete , racing car , coconut falling from a tree etc ....
Lets check whether the Law of Conservation of Energy is correct or not :
SO , Lets check whether this law is correct !!
Lets take an example of a Freely Falling Body : -
At the maximum height , the body possess maximum Potential Energy and at this same point , the body possess zero Kinetic Energy , as it is not in motion.
As it moves down , potential energy of the body decreases [ height is decreasing , so P.E is also decreasing ]and Kinetic Energy increases [as the body is in motion ].
At the lowest point , before touching the ground , the body possess maximum Kinetic Energy and zero Potential Energy.
After touching the ground , the energy gets converted to Sound , light or any other forms of energy
But at all the points the energy remains constant.
That is ,
Potential Energy + Kinetic Energy = a Constant
mgh + 1/2mv² = a constant
After touching the ground , the mechanical energy gets converted to Sound , light energy or any other forms of energy
Law of Conservation of Energy states that Energy can neither be created nor be destroyed,It can be transferred from one object to another and can be transformed from one form to another form.
Mechanical Energy = Potential Energy + Kinetic Energy
First of all lets take a look at the two types of Mechanical Energy :
Do you know what are the types of mechanical Energy ?
Answer :
Two Types of Mechanical Energy are :
<>Potential Energy
<>Kinetic Energy
⇒Potential Energy :-
Potential Energy is the Energy possessed by a body by virtue of its height or by virtue of its strained configuration
Potential Energy = mgh , m = mass , g = acceleration due to gravity , h = height
Can you list some examples ??
Here are some examples ....
A stretched rubber band , a winded spring , Water stored in a dam , Bow and Arrow.
⇒Kinetic Energy:-
Energy possessed by a body by virtue of its motion.
All moving bodies possess Kinetic Energy
Kinetic Energy = 1/2 mv² , m = mass , v = velocity
Here are some examples .....
Running athlete , racing car , coconut falling from a tree etc ....
Lets check whether the Law of Conservation of Energy is correct or not :
SO , Lets check whether this law is correct !!
Lets take an example of a Freely Falling Body : -
At the maximum height , the body possess maximum Potential Energy and at this same point , the body possess zero Kinetic Energy , as it is not in motion.
As it moves down , potential energy of the body decreases [ height is decreasing , so P.E is also decreasing ]and Kinetic Energy increases [as the body is in motion ].
At the lowest point , before touching the ground , the body possess maximum Kinetic Energy and zero Potential Energy.
After touching the ground , the energy gets converted to Sound , light or any other forms of energy
But at all the points the energy remains constant.
That is ,
Potential Energy + Kinetic Energy = a Constant
mgh + 1/2mv² = a constant
After touching the ground , the mechanical energy gets converted to Sound , light energy or any other forms of energy
Answered by
3
According to the law of conservation of energy, "Energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another".
Similar questions