Els dispositius que fabricam els éssers humans perquè ens ajudin a fer diferents tasques s'anomenen
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Màquines
Quiz
•
Science
•
5th Grade
•
Medium
Vicenç Serralta
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Electrodomèstics
Màquines
Objectes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les màquines mecàniques són les que multipliquen la força que feim o canvien la seva direcció
Cert
Fals
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quan exercim una força sobre una màquina, li proporcionam energia per funcionar. Com s'anomena aquesta energia?
Eòlica
Hidràulica
Mecànica
Nuclear
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les primers màquines es van inventar fa milers d'anys
Fals
Cert
No, va ser fa 500 anys.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les màquines simples ens permeten
Canviar la direcció de la força
Augmentar la força
Redirigir i multiplicar la força
Reduir la força
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Anomena les màquines simples que coneguis
Palanca
Politja
Pla inclinat
Roda
Caragol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una màquina composta és la resultant de combinar diferents màquines simples.
Correcte
Fals
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