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Scienze della formazione primaria


     DIDATTICA DELLA FISICA



                              Christian Pisano
                         Pierfrancesco Vilotta
Buon giorno ragazzi …
Dovete sapere che tutto ciò
   che esiste in natura è
  costituito da ATOMI …
… ed ogni atomo è costituito da
particelle di piccolissime dimensioni
 “elettrizzate”, cioè che hanno una
            propria carica:
  • i protoni -> carica positiva (+)
   • i neutroni -> carica neutra (/)
• gli elettroni -> carica negativa (-)
i PROTONI ed i NEUTRONI stanno
     insieme tra loro e NON SI
   MUOVONO, formando così il
  NUCLEO dell’Atomo, mentre gli
   ELETTRONI gli girano intorno
Queste particelle stanno “bene” tra
     loro se non vengono …
         “DISTURBATE”
Vediamo allora cosa succede
 se alteriamo il loro “STATO
        DI QUIETE” …
Materiali
                                    usati ...




        Materiali
        usati ...

• Penna                Penna
• Carta                Carta
• Panno di lana     Panno di lana
Se sfreghiamo una penna
contro un maglione allora la
   possiamo utilizzare per
   attirare piccoli pezzi di
 carta … come se fosse una
          calamita!!!
Vediamo come si sviluppa
una vera e propria forza che
  riesce a spostare piccoli
          oggetti.
Play
Spiegazione dell’esperimento:



                       Quando si strofina la penna
                           sul panno di lana si
                         trasferiscono le cariche
                        negative dalla lana alla
                                 penna.
La penna, più carica
elettricamente, è così in grado
 di attrarre la carica positiva
    che si trova sulla carta.

Ecco il motivo per il quale la
carta rimane attaccata sulla
          penna!!!
Attraverso “l’attrazione” la
    penna e la carta hanno
 raggiunto INSIEME un nuovo
  STATO DI QUIETE … finchè
qualche altro scienziato pazzo
   non li va nuovamente a
        DISTURBARE!!!
Grazie per
l’attenzione
 ragazzi !!!

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Presentazione fisica christian

  • 1. Scienze della formazione primaria DIDATTICA DELLA FISICA Christian Pisano Pierfrancesco Vilotta
  • 2. Buon giorno ragazzi … Dovete sapere che tutto ciò che esiste in natura è costituito da ATOMI …
  • 3. … ed ogni atomo è costituito da particelle di piccolissime dimensioni “elettrizzate”, cioè che hanno una propria carica: • i protoni -> carica positiva (+) • i neutroni -> carica neutra (/) • gli elettroni -> carica negativa (-)
  • 4. i PROTONI ed i NEUTRONI stanno insieme tra loro e NON SI MUOVONO, formando così il NUCLEO dell’Atomo, mentre gli ELETTRONI gli girano intorno
  • 5. Queste particelle stanno “bene” tra loro se non vengono … “DISTURBATE”
  • 6. Vediamo allora cosa succede se alteriamo il loro “STATO DI QUIETE” …
  • 7. Materiali usati ... Materiali usati ... • Penna Penna • Carta Carta • Panno di lana Panno di lana
  • 8. Se sfreghiamo una penna contro un maglione allora la possiamo utilizzare per attirare piccoli pezzi di carta … come se fosse una calamita!!!
  • 9. Vediamo come si sviluppa una vera e propria forza che riesce a spostare piccoli oggetti.
  • 10. Play
  • 11. Spiegazione dell’esperimento: Quando si strofina la penna sul panno di lana si trasferiscono le cariche negative dalla lana alla penna.
  • 12. La penna, più carica elettricamente, è così in grado di attrarre la carica positiva che si trova sulla carta. Ecco il motivo per il quale la carta rimane attaccata sulla penna!!!
  • 13. Attraverso “l’attrazione” la penna e la carta hanno raggiunto INSIEME un nuovo STATO DI QUIETE … finchè qualche altro scienziato pazzo non li va nuovamente a DISTURBARE!!!