Question

Explain why, the walls of a dam are thicker near the bottom than at the top

Answer 1

The dam. You can see from the diagram that the dam is much thicker at the bottom than it is at the top. This is because the pressure of the water is much greater deeper down and the dam needs to be thick at the bottom so that it is strong enough to withstand this larger pressure.

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Answer 2

The walls of a dam are thicker near the bottom than at the top because:

• The walls of the dam are thicker near the bottom as greater force is exerted at the bottom part of the dam than at the top.
• The bottom part of the dam experience greater forces by water.
• The walls of dams are made thicker near the bottom so that the weight of the dam can be balanced.
• If the bottom part of the dam is not thicker then the dams can collapse and the area may face situations of the flood.