Q. 65 B4.3( 22 Votes )
Explain why the walls of a dam are thicker near the bottom than at the top.
A dam is thicker at the bottom than at the top because the forces exerted are strongest close to the ground. Water pressure increases proportionally with depth, so the lower portion of the dam has greater water pressure exerted upon it. The increasing thickness of the lower dam also helps it support its own weight.
Rate this question :
Some mustard oil is kept in a beaker. It will exert pressure:Lakhmir Singh & Manjit Kaur - Science
The magnitude of atmospheric pressure is equal to the pressure exerted by a :Lakhmir Singh & Manjit Kaur - Science
The atmospheric pressure is usually measured in the unit of :Lakhmir Singh & Manjit Kaur - Science
When we press the bulb of a dropper with its nozzle kept in water air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to :Lakhmir Singh & Manjit Kaur - Science
As we go to high altitude the atmospheric pressure goes on decreasing. Give the reason.All in One - Science
Explain in brief why our head does not get crushes with atmospheric pressure.All in One - Science
Briefly state where will the atmospheric pressure be greater at ground level or at the top of the high mountain.All in One - Science
Mention the type of pressure is involved in rubber sucker.All in One - Science
Explain why the walls of a dam are thicker near the bottom than at the top.Lakhmir Singh & Manjit Kaur - Science