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Worksheets3º ESO PLASTIC
Total questions: 26
Worksheet time: 16mins
Thermoplastics are...
composed of polymer chains that are laterally connected.
composed of polymer chains that are strongly connected.
composed of polymer chains that are weakly connected to each other.
In general plastics are physically resistant to ........
stretching
bending
twisting
pression
In general plastics are good.....
electrical and thermal insulators
acoustic conductor
and beautiful
electrical and thermal conductor
These type of plastics keep this new shape after they cool down, this heating and cooling process can be repeated as many times as needed.
Repited plastics
Thermoplastics
Melamine
Elastomers
According to their origin plastics can be divided into
two types: Termoplastic and termosetting plastic
two types: Ecoplastic and artificial plastic
two types: Natural and synthetic plastics
two types: Hard plastic and soft plastic
Plastics are malleable because.........
is possible to make sheets
is possible to cut it easy
is possible to make threads
is possible to bend it
Plastics consists of long chains of molecules mostly made of the element ......
Grafeno
Oxigen
Vibranium
Carbon
Plastics are ductile because .......
is possible to make sheets
is possible to make threads
is possible to cut it easy
is possible to bend it
Plastics are permeable to liquids.
True
False
The industrial production of plastic from raw materials is called .....
plastification
polymerization
processing
joining
According to their internal structure plastic materials can be divided into .....
two grups: Natural and syntetic
two grups: elastics and rigid
three grups: Thermoplastics Thermosettings, Elastomer
two grups: conductor and insulator
Plastics can be recyclable in many ways such as......
Chemical recycling
Non biodegradable plastic
Biodegradable plastic
Mechanical recycling
Energy recovery
Thermosetting plastics are
composed of polymer chains that are laterally connected.
composed of polymer chains that are weakly connected to each other.
composed of polymer chains that are strongly connected.
Select the thermoplastics
Bakelite
Polypropylene
Teflon
Melamine
Methacrylate
Plastics raw materials
Petroleum
Clay
Lead
Milk
Which of the following plastic forming technique is used to make a pipe?
Calendaring
Vacuum forming
Extrusion
Blow molding
Injection molding
The production of these plastics includes a chemical process called vulcanization
Sulfur plastics
Cellophane
Vulcano plastic
Elastomers
These materials can only be heated and shaped once, the process cannot be repeated
Recycable plastic
Thermoplastics
Polypropylene
Thermosettings
Select the thermoplastics
Low density polyethenene
Latex
Polyester resins
Cellophane
Polyethylene terephtalate
Plasticizers can be incorporated during the manufacturing processes of plastics in order to...
produce polymerization
Increase impermeabity
Increase the resistance
Make the interesting
Which of the following plastic forming technique is used to make a bottle for mineral water?
Calendaring
Vacuum forming
Extrusion
Blow molding
Injection molding
Which of the following plastic forming technique the air is sucked out to give the object the desired shape?
Calendaring
Vacuum forming
Extrusion
Blow molding
Injection molding
Select the thermosetting plastics
Bakelite
Polypropylene
Teflon
Melamine
Methacrylate
Elastomers are
composed of polymer chains that are laterally connected.
composed of polymer chains that are strongly connected.
composed of polymer chains that are weakly connected to each other.
Select the thermosettings plastics
Low density polyethenene
Latex
Polyester resins
Cellophane
Polyethylene terephtalate
Which of the following plastic forming technique it used rollers?
Calendaring
Vacuum forming
Extrusion
Blow molding
Injection molding
