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7891914
physics
Descripción
Mind Map on particle model, created by chloe walton on 28/02/2017.
Sin etiquetas
[missing
physics
gcse aqa
Mapa Mental por
chloe walton
, actualizado hace más de 1 año
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Creado por
chloe walton
hace más de 7 años
5
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Resumen del Recurso
physics
solids
strong forces of attraction
fixed position
all touching
no space between the particles
cannot be compressed
liquids
75% touching
cannot be compressed
weak forces of attraction
can flow
can change shape
can pe poured
gases
none touch
rapid,random motion
Flow
no force of attraction
a lot of space between particles
no pattern
heating curves
the plot of temperature
shows changes of state
you can read the melting and boiling points
temperature of the substance against the amount of energy it has absorbed
Specific latent heat of fusion
The amount of energy needed to melt 1kg of a solid into a liquid without changing its temperature
Specific latent heat of vaporisation
The amount of energy needed to boil 1kg of a liquid to a gas without changing its temperature
Sublimation Melting. Boiling Solid, liquid, gas Freeze,condense Depostion
Mass = densityXvolume
E=mxL
Specific heat capacity
Amount of energy needed to change 1kg of a substance by 1 degrees
P1V1=P2V2
Energy cannot be created or destroyed ,it can only be transferred from one store to another
pathway examples
The sun has a store of nuclear energy which reaches the solar cells through a radiation pathway.
The energy is stored in a battery when the machine is used some energy is wasted this happens through a heating pathway.
eqations
ep = m x g x h
ee = 1/2 x k x exe
ek = 1/2 x m x vxv
wd = f x d
p = wd divided by t
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