WorksheetsBU_Quizizz1
Total questions: 5
Worksheet time: 2mins
Name
Class
Date
1.
Thickness of thin film can be upto
a)
100 nano meter
b)
10 micro meter
c)
10 cm
d)
1 inch
2.
Thermal evaporation technique is used for
a)
nano powder
b)
metallic film
c)
carbon nanotube
d)
All of the above
3.
What is a nanoparticle?
a)
A particle that is 1 -10 nanometres (nm) in diameter.
b)
A particle that is 1 -100 nanometres (nm) in diameter.
c)
A particle that is 10 -100 nanometres (nm) in diameter.
d)
A particle that is 1 -1000 nanometres (nm) in diameter.
4.
What is a use of nano-sized titanium dioxide?
a)
Shower gel
b)
Shampoo
c)
Sun-cream
d)
Moisturiser
5.
Why are people concerned about the use of nanoparticles?
a)
Don't know the long term effects
b)
Too expensive
c)
Too small to see
100 %
