NEW
Font size
WorksheetsNano_Quiz 2
Total questions: 12
Worksheet time: 6mins
…….. are from one-dimensional nanomaterials
Carbon nanotubes
Thin films
Bucky balls
Nanoshells
0.01 nanometer is a dimension for .......
one dimension nanomaterials
two dimension nanomaterials
three dimension nanomaterials
not a nanomaterial
GR:- The extraordinary properties of nanomaterials
Due to the decrease of the ratio between the surface area and weight and the no. of atoms on the surface.
Due to the increase of the ratio between the density and volume and the no. of atoms on the surface.
Due to the decrease of the ratio between the surface area and volume and the no. of atoms on the surface.
Due to the increase of the ratio between the surface area and volume and the no. of atoms on the surface.
find if the following dimensions are for nanomaterial or not :
l = 20000 μm
w =20x10−6mm
h=2x103 nm
one dimension
two dimensions
three dimensions
not a Nano material
convert : 2 cm = ....... nm
2×10+7
2×10−6
2×10+6
2×10−7
The creating of nanoscale materials by chemically or physically breaking down the larger materials is known as ______________ approach in nanotechnology?
Top-down
Bottom-up
Bottom-down
None of the above
________ nanoparticles include metals and metal oxides.
Organic
Inorganic
The colour of the gold nano particles is
Yellow
Red
Orange
Variable
The ___________ lithography does not need a mask.
Electron beam
Photo
PDMS is a common elastomer used for
Photolithography
Soft lithography
Dip-pen nanolithography
________ is a technique used to spread uniform thin films on flat substrates by centrifugal force.
Microcontact printing
Capillary molding
Spin coating
Photolithography
_______ polymerization is a heterogeneous polymerization process that begins initially as a homogeneous system in the continuous phase, where the monomer and initiator are completely soluble, but upon initiation the formed polymer is insoluble and thus precipitates.
Emulsion
Precipitation
Suspension
