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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 English
4.17 Nano Technology

Directions: Answer the following questions and verify your answers. Do your own research and write an informative essay about nano technology.
Q 1: A unique phenomenon that occurs in nanoparticles is Gibbs-Thomson effect, which is the _____.
instant evaporation of material
raising of the melting point of a material
lowering of the melting point of a material
instant freezing of material

Q 2: While manipulating nanoparticles, the following would happen.
Van der Waals attraction would become more important
all of these
surface tension would become more important
gravity would become less important

Q 3: Nanotechnology is the understanding and control of matter at dimensions of roughly 1 to 100 nanometers, where unique phenomena enable novel applications. What is a nanometer?
109 m
10-6 m
10-9 m
106 m

Q 4: One fundamental characteristic of nanotechnology is that nanodevices self-assemble. That is, they build themselves from the bottom up. _________ is an important technique both for characterization and synthesis of nanomaterials.
Ultrasonic photography
Scanning probe microscopy
Infrared detector
Optical telescopy

Q 5: Critics of nanotechnology point to the potential toxicity of new classes of nanosubstances and compare them to
green house emissions
microscopic materials like asbestos fibres
atom bomb
highly damaging acid rain

Q 6: Potential benefits of nanotechnology might include
faster computers and advanced data storage
all of these
improvements in skin care and protection
advanced pharmaceuticals and new drug delivery systems

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Question 8: This question is available to subscribers only!


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