
Estructures i mecanismes 3erESO
Authored by Xavier Trigo
Instructional Technology
3rd Grade
Used 3+ times

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24 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
L’esforç̧ que es produeix quan dues forces oposades (de sentit contrari) actuen sobre un cos i tendeixen a estirar-lo o allargar-lo, s’anomena:
Flexió
Torsió
Tracció
Compressió
2.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
En la imatge es veu ...
4 engranatges
80 dents
1 mecanisme
1 palanca
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Una fusta horitzontal d’una prestatgeria plena de llibres suporta un esforç̧ de:
Flexió
Torsió
Compressió
Tracció
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quin no és un tipus de palanca
3r grau
2n grau
1er grau
4rt grau
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Al conjunt d’elements units entre ells, amb la funció bàsica de suportar forces, se l’anomena:
Armadura
Aparell
Força
Estructura
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
UNA POLITJA FA AUGMENTAR LA FORÇA QUE HEM DE FER
Veritat
Fals
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Per proporcionar rigidesa i una gran resistència, moltes estructures metàl·liques es construeixen a partir d’una forma geomètrica simple. Quina?
Quadrats
Triangles
Cercles
Polígons
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