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Gcse Chemistry
Nanotechnology
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Q.1
What size of particles does nanoscience deal with?
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1 - 100nm
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100 - 1,000nm
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1,000 - 100,000nm
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1,000,000 - 10,000,000nm
Q.2
What is nanotechnology?
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The manipulation of matter with an ipod nano
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The manipulation of matter on an atomic level
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The manipulation of matter on a macromolecular level
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The manipulation of matter on a huge scale
Q.3
Some people are concerned that nanoparticles could be...
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too small to be able to manipulate
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too small to be of any use
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too small to see
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toxic to humans
Q.4
Why are silver nanoparticles added to socks?
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They prevent socks getting taken by the sock monster
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They help the socks absorb moisture
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They stop the socks from smelling
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They make the socks lighter
Q.5
Which of the following properties does NOT change when dealing with nanoparticles of a substance?
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Melting point
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Sensitivity to light
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Atomic structure
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Intermolecular forces
Q.6
The surface area to volume ratio for nanoparticles is...
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much greater than for larger particles
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much smaller than for larger particles
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the same as larger particles
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there is no difference if the particle is the same substance
Q.7
Why might nanotubes be useful as drug delivery systems?
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They are expensive
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They are strong
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They are light
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They are hollow
Q.8
Why are nanoparticles used in tennis rackets?
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To make them lighter and stronger
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To make them faster and more accurate
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To make them faster and lighter
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To make them more accurate and stronger
Q.9
Which of the following is NOT a current use for nanoparticles?
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Sports equipment
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Weapons
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Clothing
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Sun creams
Q.10
Nanoparticles are measured in...
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metres
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millimetres
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nanometres
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centimetres
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