Some materials can extend significantly, but still return to their original shape. A material's ability to do this is called Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable Rubber is an example of a very Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable material-it can be Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable deformed to a considerable extent. If a material has very low elasticity, and is strong, engineers say it is Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable If a material has low elasticity and is weak, it is described as Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable -that is, it Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable (breaks, due to tension) very easily. Glass is an example of a brittle material. Some materials can change shape significantly, but do not return to their original shape. We say these materials are Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable . Often, Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable is described in specific terms. A material that can be Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable deformed by hammering or rolling -for example, lead (Pb)-is Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable . A material that can be drawn out (stretched) into a long length -for example, copper (Cu)-is Выберите...brittleplasticityelasticityplasticallyplasticelasticfracturesstiffductileelasticallymalleable .