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How do they stick on the wall?

Updated: 8/10/2023
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Wiki User

14y ago

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A Plant Sucker

A smooth surface is not entirely smooth. It has small grooves that can be grabbed by a plant stem (or the feet of small insects).

A Lollipop

The moistened sugar adheres to the surface.

A Suction Cup

The cup is compressed, and tries to expand back to its original shape. However, the flexing of the cup creates a partial vacuum under the cup, and the air is unable to pass between the smooth contact area. So the air pressure outside keeps the cup against the wall. (Moistening the rubber of the cup will provide a better seal.)

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Wiki User

14y ago
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Wiki User

14y ago

A wall sucker sticks to a wall because the pressure on the outside becomes greater then the pressure on the inside. This means that more air is pushing it into the wall then is pushing it away.

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Wiki User

14y ago

they have air pads in their feet helps them stick on to the wall using vacuum and suction force.

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Wiki User

10y ago

can a ruber sucker be stuck on rough surface?give reason

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Muhammad Qasim

Lvl 2
2y ago

Air is forced out by sucker and pressure inside sucker decreases as compared to the atmospheric pressure outside ,which causes a sucker to press on smooth wall.

Sir hashir

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Q: How do they stick on the wall?
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