What Is The Elasticity Of Rubber Bands

Using the scissors cut one rubber band so that it is a straight ribbon rather than a circle.

What is the elasticity of rubber bands.

Ever wonder what holds your underpants up or why a rubber band stretches so much. When frozen the particles contracted adding strength and increasing resistance to force. 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. Rubber isn t a manmade creation although we do use it in countless applications to make our life easier.

Rubber is a member of a larger class of materials called elastomers and it is difficult to overestimate their economic and. Materials like rubber have a high elasticity. Rubber elasticity refers to a property of crosslinked rubber. This can be repeated many times with no apparent degradation to the rubber.

Gently being careful not to burn yourself on the hot water or steam lower the weight and rubber band into the graduated cylinder. Why do rubber bands lose their elasticity. The hypothesis was supported by our experiment. Yes a rubber band will actually become softer or easier to stretch when the temperature gets colder.

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. The heated rubber bands were the most elastic. The rubber band s elasticity water resistance and lightness have made it a universal commodity.

Effect of temperature on the elasticity of a rubber band table. The science of rubber. Today rubber bands are most commonly used to hold multiple items together. 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.

This is because it is made up of millions of long and bendable chains of molecules. 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. Modifications to the original rubber band patented in england on march 17 1845 by stephen perry include aerobic bands bracelets and projectiles. The way to think of the elasticity is in terms of entropy which is basically a measure of disorder.

When the rubber bands were heated the particles stretched out making them more elastic and able to withstand greater force. The rubber bands in freezing water were the opposite with a stretching length of 9 50 o o5 cm 0 c. Stretching to the farthest extends of 17 90 o o5 cm 100 c. This activity brought to you in partnership with science buddies.