Nanotechnology Final Exam-Questions and Answers Graded A+

Nanotechnology Final Exam-Questions and Answers Graded A+ One application of increased surface area to volume ratio for nanomaterials is - ANSWER-increasing the efficiency of catalysts An example of an important function of living organisms that takes place at the nanoscale is - ANSWER-DNA replication The "bottom-up" approach of nanotech involves - ANSWER-assembling atoms and molecules individually into structures These particles are used in electrical circuits and microscopy - ANSWER-electrons What is so special about the nanoscale? - ANSWER-materials can have different properties at this size This is an example of an nanostructure - ANSWER-buckyballs Nanotechnology requires the ability to - ANSWER-manipulate and control nanostructures in a useful way Nanotechnology is the way - ANSWER-nanoscale discoveries are used to solve problems This is an ancient culture that used nanoparticles for coloring fabrics and jewelry thousands of years ago - ANSWER-Egyptians These particles are formed when electrons are added to or removed from atoms - ANSWER-ions Michael Faraday was most famous for this - ANSWER-work with electromagnetism A method for viewing the nanoworld which produces high resolution images of a small area is - ANSWER-Transmission Electron Microscope or TEM Nanoscale refers to particles or structures at this scale - ANSWER-1-100 nanometers A cup made in the 4th century which appeared green in reflected or red in transmitted light was called - ANSWER-Lycurgus Carbon nanotubes were used by these craftsmen to make swords of legendary strength - ANSWER-Arabs