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Why do rubber bands become warm when stretched repeatedly?
Rubber bands become warm when stretched repeatedly because the mechanical deformation causes friction between the polymer chains in the rubber, generating heat. This frictional heat is a result of the movement and reorganization of the polymer chains as the rubber is stretched.
Determine the strength of a polymer solution as a percent if 80 grams of polymer are mixed with 16 liters of water?
0.1125% of polymer solution.
What elements are in a rubber band?
Rubber is actually made from latex which is a form of silicon. Rubber bands are a polymer that can be stretched.
What makes a polymer elastic?
Polymers are elastic due to their long chain structure, which allows them to easily stretch and return to their original shape. The intermolecular forces between polymer chains provide the elasticity by allowing the chains to slide past each other when stretched and then recoil when released. The flexibility of polymer chains and the ability to form temporary bonds contribute to the elastic behavior of polymers.
What is a solid that has ability to bend without breaking?
If a material is easy to bend without breaking, it is usually described as flexible (flexibility). Another similar term is tensile strength (the strength of a material when it is stretched). Malleability describes the material's ability to be molded without breaking. Tensile strength and ductility describe the ability to be stretched without breaking.
Which scientific explanation below best describes a polymer?
Amino acids and nucleotides are examples of polymers
What are the physical properties of elastomeric rubber polymer vulcanized rubber?
some properties are they are elastic,can be stretched. they are also heat resistant.Rubber keeps moisture out and let the air in.
What happens when a rubber band is stretched?
When a rubber band is stretched, the polymer chains inside it straighten out and become aligned in the direction of the stretching force. This causes the rubber band to store potential energy. Once the stretching force is removed, the polymer chains return to their original random arrangement, releasing the stored energy and causing the rubber band to contract back to its original shape.
Are New Zealand's notes plastic?
All of New Zealands circulating banknotes are made from a polymer compound. The Five, Ten, Twenty and One Hundred Dollar polymer notes were first issued in 1999. The Fifty Dollar polymer notes were first issued in 2000.
What term describes large molecules that contain carbon and are held together by covalent bonds?
A polymer would fit this description.
What is the percent of polypropylene elasticity?
Polypropylene is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles, stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes. It percent of elasticity is dependent upon its application.
How thick is 100 Australian One Hundred Dollar notes?
The Reserve Bank of Australia advises that the thickness of 1,000 Australian One Hundred Dollar polymer banknotes is 140.8 mm plus or minus 5%. Therefore 100 One Hundred Dollar polymer banknotes would be 14.08 mm plus or minus 5%. The 5% allowance is for wear and tear on circulating banknotes.
