SOME DEFINATION OF physics like pressure,work,liquid's pressure and more
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| (In this image shown one man who are pushing the force on the one stone. And this image has taken from the Google.) |
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What is pressure ?
We can define pressure that the force which puts on surface of anything. It is pressure.
It's formula is
P=F/A
Where,
P= pressure
F= vertical force
A= Area of surface
It's S.I. unit is N/M*M. Which is also calls paskal . It is name of scientist.
We can say that defination like that , pressure is equal of the Ratio of the force and Areas .
what is Work ?
If a force is displayed in the direction of the of the force by applying a force it is said that the force acted work is the one of most important quantity in physics.
In another way we can say like that,
The product of distance and force its called work.
Formula
W=F*D
where ,
W = work
F= force
D= distance
What is power?
The working rate is called power. In another way , how much works a person in a time it is power .
Formula ,
P=w/t
Where,
P= power
w= work
t= time
If we talk about the unit of the power then it is
Power = joule/time.
We can say that this definition like that, the power is equal of ratio of the work and time.
What is liquid pressure ?
The particle of water push the force on the container surface. it is liquid pressure .
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| (In this image shown liquid particles . They are forcing on the container. This image has taken from the Google) |
We can calculate liquid pressure by this formula,
P (liquid)= hdg
Where
P= pressure
h= depth at a point in water
g= acceleration of Gravity
We can say that this definition that is liquid pressure is equal to of the multiplication of the height, acceleration of the gravity and the depth at a point in water.
