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HW 0
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- 1Most of the materials we use today were developed... ...since 1900. ...before 1900. ...during the bronze age. ...between 1800 and 1900. ...during the stone age.since 1900
- 2True/False: If you know the composition of a material, then you can fully predict its properties.False
- 3Based on the classroom discussion, which of the following best describes what a physicist does? -Discovers new physical principles. -Designs new materials. -Engineers new components. -Solves problems for chemists.-Discovers new physical principles.
- 4Based on the classroom discussion, select the BEST description for the discipline of materials science & engineering (MSE): -MSE discovers new physical phenomena in materials. -MSE designs new engineering systems. -MSE both discovers new physical phenomena about materials and designs new engineering materials using these phenomena. -MSE both discovers new engineering components (e.g., turbines, crankshafts, etc.) and designs new systems with these components (e.g., aircrafts, vehicles, etc.).MSE both discovers new physical phenomena about materials and designs new engineering materials using these phenomena.
- 5Roughening the surface of a material (by, for example, rubbing the surface with sandpaper) is an example of... ...modifying the material constant of a material that may change its performance for a given application. ...modifying the material constant of a material in such a way as to have no influence on its performance in a given application. ...modifying the shape of a material in such a way as to have no influence on its performance in a given application. ...modifying both the shape and material constant of a material. ...modifying the shape of a material in a way that may change its performance for a given application....modifying the shape of a material in a way that may change its performance for a given application.
- 6The emissivity of a material determines the spectral intensities of light emitted from the material at a temperature above absolute zero. Thus, the emissivity is an example of a material constant that crosses which two classes of properties? -Magnetic and Electrical -Optical and Thermal -Electrical and Optical -Optical and Magnetic -Electrical and ThermalOptical and Thermal
- 7Which of the following would be considered a CHEMICAL property of a material? -Heat Capacity -Solubility -Ductility -Dielectric ConstantSolubility
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- materials Fichas sobre HW 0, creado por E A el 28/04/2021.
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