Macchine e motori
Authored by Francesca Valente
Instructional Technology
8th Grade
Used 32+ times
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22 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Con quali invenzioni ha avuto inizio lo studio della meccanica? Devi scegliere 2 delle 4 opzioni e poi cliccare su submit
Leva
Aratro
Fuoco
Ruota
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A cosa serve il piano inclinato?
Serve a sollevare corpi pesanti applicando una forza inferiore a quella resistente.
Serve a sollevare corpi pesanti applicando una forza superiore a quella resistente
Serve a sollevare corpi pesanti applicando una forza inferiore a quella resistente
Serve a far scivolare corpi applicando una forza inferiore a quella resistente.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nelle leve di primo genere il fulcro si trova ...
tra forza motrice e resistente
al vertice e prima della forza resistente
al vertice e prima della forza motrice
è indifferente
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nelle leve di secondo genere il fulcro si trova ...
tra forza motrice e resistente
al vertice e prima della forza resistente
al vertice e prima della forza motrice
è indifferente
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nelle leve di terzo genere il fulcro si trova ...
tra forza motrice e resistente
al vertice e prima della forza resistente
al vertice e prima della forza motrice
è indifferente
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale motore non ha la candela?
Diesel
Benzina
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Nel motore a scoppio, l'esplosione innescata dalla scintilla
fa risalire il pistone
spinge il pistone verso il basso
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