Q3 of 6 Page 143

Why is the one end of drawing pin kept wide but the other end very sharp?

The one end of drawing pin kept wide but the other end very sharp


We know,


Pressure=


With one end wide we can apply large force in a small area which helps the pin to pierce easily on the board with large pressure.


Again due to the large with on one end, the pressure applied on this results to be small and hence we don't injure ourselves.


More from this chapter

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1

Why does a cool breeze blow in the afternoon on the seashore?

 2

What is the force needed to produce of 1 pa over a square area of side 2m?

 4

How does pressure due to liquid held in a container vary with-

a) Depth?


b) Amount?


c) Shape size of container?

 5

Do liquids and gases also exert pressure? Does it depend upon on the area on which the force acts?