Q10 of 17 Page 236

Swetha is wearing a sharp edged high heeled footwear. Madhu is wearing a flat footwear. If both the girls are having same weight and both are stepping over your foot, whose footwear will cause more pain to your foot? Why?

The high heeled footwear of Swetha is having a sharp or small area of the heel in comparison to that of Madhu who is wearing a flat heel footwear. As both the girls have the same weight, so the force acting will be same and only the area will determine the amount of pressure ( pain to my foot). Hence, Swetha will cause more pain than Madhu if they step on my foot.


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8

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Now let us complete the following sentences by choosing the right option below


(equal to, less than, more than)



a) The force of A on the ground is _________ the force of B on the ground.


b) The area that A occupies is ________ B on the ground.


c) The pressure exerted by A is _______ the pressure exerted by B.

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As we go higher and higher atmospheric pressure _______ (increases / decreases)