Nanoparticles are more reactive than larger particles of the same volume because...

there is a larger surface area.

Which of these is NOT a problem with using nanoparticles?

They have replaced older natural materials.

Explain why nanoparticles are added to sports equipment.

They make them more strong and durable.

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KS3 Nanoparticles

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Basic quiz about nanoparticles and their uses

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Questions 15

Answers

1
A nanometre is...
10-9m
10-10m
10-6m
10-3 m
2
Nanoparticles can be seen using a
pair of spectacles.
light microscope.
scanning electron microscope.
magnifying glass.
3
Nanoparticles are measured in...
cm
m
nm
mm
4
Silver nanoparticles are used in bandages because
they are magnetic.
they can kill bacteria.
they can detect infection.
they are expensive.
5
Drugs carried by nanoparticles only gets into cancer cells, and not other cells. T/F?
False
True
6
Which of these is NOT a use of nanotechnology?
Sunscreens
Antibacterial wound dressings
Car tyres
Sports equipment
7
Nanoparticles are more reactive than larger particles of the same volume because...
they are more neatly arranged.
there is a larger surface area.
there are higher number of reactants.
they can move on their own.
8
Which of these is NOT a problem with using nanoparticles?
The benefits and risks of using them must be understood.
They could be harmful to the body and we don't know it.
They have replaced older natural materials.
We don't know the long term impacts of using them.
9
Sunscreen using zinc oxide nanoparticles is better because
it is easier to make.
it is cheaper.
it is safer.
it is more effective.
10
Which property of nanotubes make it useful for making racing bicycles?
Lightweight
Can conduct electricity
Expensive
Flexible
11
Nanoparticles are very small; they are made up of
2-3 atoms only.
a single atom only.
a few hundred atoms only.
a few millions of atoms only.
12
Explain why nanoparticles are added to sports equipment.
They provide lubrication.
They block uv light.
They make them more strong and durable.
They provide extra colour.
13
The use of nanoparticles to treat disease is called
Nano-medicine
Nano-operation
Nano-industry
Nano-surgery
14
Carbon nanotubes are ........... of carbon atoms.
pyramids
sheets
cylinders
spheres
15
Nanoparticles can make your phone waterproof as they
can release a medicine.
form a protective coating.
make the phone stiff.
are strong and can be hammered.

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