What is Tension at an angle: Definition and 16 Discussions

Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows heavier than water i.e., denser than water objects such as razor blades, insects (e.g. water striders), to float and slide on a water surface without becoming even partly submerged.
At liquid–air interfaces, surface tension results from the greater attraction of liquid molecules to each other (due to cohesion) than to the molecules in the air (due to adhesion).There are two primary mechanisms in play. One is an inward force on the surface molecules causing the liquid to contract. Second is a tangential force parallel to the surface of the liquid. This tangential force (per unit length) is generally referred to as the surface tension. The net effect is the liquid behaves as if its surface were covered with a stretched elastic membrane. But this analogy must not be taken too far as the tension in an elastic membrane is dependent on the amount of deformation of the membrane while surface tension is an inherent property of the liquid–air or liquid–vapour interface.Because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension (72.8 millinewtons (mN) per meter at 20 °C) than most other liquids. Surface tension is an important factor in the phenomenon of capillarity.
Surface tension has the dimension of force per unit length, or of energy per unit area. The two are equivalent, but when referring to energy per unit of area, it is common to use the term surface energy, which is a more general term in the sense that it applies also to solids.
In materials science, surface tension is used for either surface stress or surface energy.

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  1. A

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  2. brotherbobby

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  3. R

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    Homework Statement In figure 12-34, a uniform beam of weight 500N and length 3m is suspended horizontally, on the left it is hinged to the wall and on the right end of the beam is a cable attached to support it. the cable is attached distance D up the wall from the hinge. The least amount of...
  4. J

    Finding Tension Force in a Metal Stick Connected to the Ceiling

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  5. jalalapeno

    Finding Tension and theta in a pulley system

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  6. J

    What is the largest pulling force before the string breaks?

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  7. S

    Is the centripetal force a projection of tension?

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  8. Salvador_

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  9. euphorik

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  10. Auburn2017

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  11. C

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  12. defaultusername

    Tension and Angle Analysis for Traction in a Broken Leg

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  13. Q

    Find the tension in the rope pulling a box at an angle

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  14. R

    Tension of a pole attached to a wall at an angle

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  15. K

    Soln: Acceleration of System & Tension in Ropes

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  16. TheNeezoMan

    Tension and acceleration of a sled?

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