3. PLÀSTICS
Authored by ESTELA CASAS
Instructional Technology
12th Grade
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Quin és considerat el primer polímer sintètic creat per l'home?
Cel·luloide
Baquelita
PVC
Polietilé
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Quina és la matèria primera d'origen mineral per a la fabricació de plàstics?
Làtex
Goma de mastegar
Caseïna
Petroli
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Són lleugers i aïllants de la calor i de ......
Humitat
Pluja
Electricitat
De la pols
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Quins materials substituia el plàstic per el seu paregut?
Fusta
Nácar
Ambar
Suro
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Els plàstics estan formats per molècules molt grans anomenades....
cel·luosa
Polímers
Policarbonats
Polipropilé
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Segons el seu comportament tèrmic-mecànic els polímers poden ser
termoestables, termoplàstics o polimonomers
elastòmers, termomecànics o moldejables
termoestables, termoplàstics o elastòmers
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El cel.luloide (o parkesina) va ser el primer material sintètic creat per l'home. Per què és va deixar d'utilitzar?
Preu
Densitat
Inflamabilitat
Color
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