What Is The Elasticity Of Rubber Bands

Rubber isn t a manmade creation although we do use it in countless applications to make our life easier.

What is the elasticity of rubber bands.

In fact natural rubber is a special type of chemical compound called an elastomer composed of unique molecules that can stretch to nearly double their normal length. Effect of temperature on the elasticity of a rubber band table. Yes a rubber band will actually become softer or easier to stretch when the temperature gets colder. Most rubber bands are manufactured out of natural rubber or especially at larger sizes elastomer and are sold in a variety of sizes.

When the rubber bands were heated the particles stretched out making them more elastic and able to withstand greater force. This activity brought to you in partnership with science buddies. This can be repeated many times with no apparent degradation to the rubber. The heated rubber bands were the most elastic.

When frozen the particles contracted adding strength and increasing resistance to force. The way to think of the elasticity is in terms of entropy which is basically a measure of disorder. It can be stretched by up to a factor of 10 from its original length and when released returns very nearly to its original length. The rubber band s elasticity water resistance and lightness have made it a universal commodity.

Rubber band elasticity and temperature from science buddies science activities for all ages from science buddies. Rubber is a member of a larger class of materials called elastomers and it is difficult to overestimate their economic and. Gently being careful not to burn yourself on the hot water or steam lower the weight and rubber band into the graduated cylinder. Today rubber bands are most commonly used to hold multiple items together.

This is because it is made up of millions of long and bendable chains of molecules. Ever wonder what holds your underpants up or why a rubber band stretches so much. Tie one end of the rubber band to the middle of the skewer and the other end to the hook or knob on the steel weight. The science of rubber.

Why do rubber bands lose their elasticity. Rubber elasticity refers to a property of crosslinked rubber. A rubber band also known as an elastic band gum band or lacky band is a loop of rubber usually ring shaped and commonly used to hold multiple objects together the rubber band was patented in england on march 17 1845 by stephen perry. The hypothesis was supported by our experiment.

The rubber bands in freezing water were the opposite with a stretching length of 9 50 o o5 cm 0 c. Our results also showed that the effect temperature had on the elasticity of the rubber bands was amplified under more weight. You can apply stress on these chains in any direction but they will always return to their original shape. Using the scissors cut one rubber band so that it is a straight ribbon rather than a circle.