contents
Calor y temperatura
Campos eléctrico y gravitatorio
El trabajo y la energÃa
Electricidad y magnetismo
FÃsica moderna
Fuerzas y presiones
La materia
Los movimientos
Medida y método cientÃfico
Ondas
Óptica
attraction among masses (I)
attraction among masses (II)
density
density (2)
density (calculations)
electric attraction
from large to small
mass has volume
matter causes gravity
matter has inertia
matter has mass
model of a gas
model of a liquid
model of a solid
model of the atom
Plasma
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