Question

Design a activity/Experiment used in daily life to show that how inverse relationship between pressure and area

Answer 1

Here are 5 very common examples from our day to day lives, to prove that pressure is inversely proportional to area :

#1. School bags have wider straps.

Wider the strap, less the pressure on our shoulders.



#2. Skis have larger area to reduce the pressure on the snow so they do not sink too deep.



#3.The studs on a football boot have a small area of contact with the ground .

The pressure applied on the ground beneath the studs is sufficient for a good grip.



#4. Wall foundations have a large horizontal area(foot), to reduce the pressure beneath so that the wall does not sink deeper into the ground.



#5. Small contact area of the tip of a nail.

Smaller the contact area of the nail tip, larger is the pressure applied on to the nail to push in.



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OTHER ANSWERS



Heena Gorasia

Answered Jun 22, 2018

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Apurv Singh, a curious physics student!

Answered May 22, 2016 · Author has 107 answers and 51.1k answer views

Try to stand on one foot,instead of two,you will feel an increased amount of pressure on the foot on which you are standing,here area is halved.

Try to compress a pillow with  fingers from both sides,and then do this with palms from both sides,you will see,that pressure on pillow decreases (at the point where you put your fingers earlier) due to an increased area of your palms.

One good example is of the principle of hydraulics(Pascal's law) used in a car ramp.The piston side has a small area of pipe with water,and lift side has a big area.Now,one can raise the lift carrying thousands of kilograms, by applying normal pressure on the piston.Because,the decreased area of piston side gathers an increased amount of pressure,which is transferred to the other side .

A sharp knife cuts more effectively than a blunt knife,the sharp knife,having very small  area on edges offers a large pressure on object to be cut,while blunt knife fails to do so.

Climb a 10 feet wall and throw an object on the ground so that it lands covering maximum area,and do this again by throwing the object so that it gets impact in minimum area,you will see that in second case,object receives greaterdamage,due to increased pressure on it.

Answer 2

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