METALI, SVOJSTVA METALA I LEGURA

METALI, SVOJSTVA METALA I LEGURA

Assessment

Assessment

Created by

Ivana Carić

Instructional Technology

7th Grade

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8 questions

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1.

Multiple Select

45 sec

1 pt

Metali se dobivaju iz

ruda

nalaze se čisti u prirodi

vulkanizacijom

2.

Multiple Select

45 sec

1 pt

Najčešće se rabe metali: ( više odgovora je točno)

aluminij

plastika

željezo

zlato

iverica

3.

Multiple Select

45 sec

1 pt

SLITINE ILI LEGURE su:

znanost koja proučava postupke dobivanja metala

mješavine metala s drugim metalima ili nemetalima zbog poboljšanja svojstva

4.

Multiple Select

45 sec

1 pt

Metalurgia je znanost koja se bavi dobivanjem metala iz ruda te preradom tih metala

Točno

Netočno

5.

Multiple Select

45 sec

1 pt

Metalurgija se dijeli u dvije skupine:

Lake i teške metale

Obojenu i neobojenu metalurgiju

Crna metalurgija i obojena metalurgija

6.

Multiple Select

45 sec

1 pt

Mehanička svojstva metala su

dobra vodljivost el. struje, topline i relativno velika gustoća

otpornost na koroziju i vatrootpornost

čvrstoća, tvrdoća, žilavost, elastičnost i plastičnost

lijevnost i kovnost

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