Surface tension research paper

My problem was to find out how to test or measure surface tension. I think the reason of some of the force in surface tension is cohesion and gravity. Surface Tension is the condition existing at the free surface of a liquid, resembling the properties of an elastic skin under tension. The tension is the result of intermolecular forces exerting an unbalanced inward pull on the individual surface molecules; this is reflected in the considerable curvature at those edges where the liquid is in contact with the wall of a vessel.

Surface tension research paper

Gather the materials and find a good place to work. Take your time and work carefully. You'll get better results. First construct the beam. There are many choices for materials. You just need something stiff enough to support a few grams at each end. You'll need to mark the center point for the fulcrum.

[BINGSNIPMIX-3

Depending on your choice of material, either drill a hole for the fulcrum e. The beam needs to rotate freely about the fulcrum.

You'll also need to make holes at each end of the beam, equidistant from the center. Attach loops of thread through the holes paper clips, or ornament hangers could also workas shown. Push the fulcrum through the center hole of the beam, and place it on the supports.

Next construct the pan.

Surface tension research paper

This can be a simple box or dish folded from aluminum foil. It's square in the diagram only because it was easier to draw. If you make a round pan, three strings will work fine for supporting it.

Tie a thread to the center of your needle or paperclip wire. Adjust the thread so that the needle or wire hangs horizontally.

Hang the pan from one end of the beam and the needle from the other, as shown in Figure 1. Fill the container that the needle will go in with water. Put the container under the needle.

Place your container of water so that the needle or wirestill hanging horizontally, is resting just on the surface of the water. Make sure the string holding the needle is taut shorten it if necessary, to match the height of your balance's supports.

You will add small amounts of weight to the pan, and measure the force needed to pull the needle or wire free from the surface of the water. It will not take much weight, so you need to add it in small increments.

Here are two different methods you could try. Use common pins as your weights, adding them one at a time.

Surface tension - Wikipedia

Calibrate them by weighing a bunch of pins on a postal scale, and dividing by the number of pins to get the weight per pin. Use drops of water from an eyedropper or plastic transfer pipette. Try both methods and see how your results compare!The interplay between different processes in a heat-affected zone of the irradiated samples is analyzed, including ablation, thermal expansion, temperature variations of viscosity, surface tension, thermal stresses, capillary .

Surface Tension My problem was to find out how to test or measure surface tension. I think the reason of some of the force in surface tension is cohesion and gravity. Surface Tension is the condition existing at the free surface of a liquid, resembling the properties of an elastic skin under tension.

Surface tension is a phenomenon in which the surface of a liquid, where the liquid is in contact with gas, acts like a thin elastic sheet.

This term is typically used only when the liquid surface is in contact with gas (such as the air).

Free Research Paper surface tension

In this experiment you will see how surface tension can hold the weight of a paper clip, such that it floats upon the water. Materials: 1 cup of water Soap 2 small paper clips Paper towels Protocol: 1.

Place the cup of water on a paper towel. Final Surface Tension Student Author: Stephanie Created Date. - Surface Tension My problem was to find out how to test or measure surface tension. I think the reason of some of the force in surface tension is cohesion and gravity.

Surface tension research paper

Surface Tension is the condition existing at the free surface of a liquid, resembling the properties of an elastic skin under tension. The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.

The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface of a glass of water do not have.

Essay on Science Reports. Research Paper on Surface Tension