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Particle model

GCSE Physics and combined science

QuestionAnswer
How much mass a substance contains compared to it's volume is… density
State the equation which links density, mass and volume ρ=m/v
Name the change of state when a liquid becomes a solid freezing
Name the change of state when a solid becomes a liquid melting
Name the change of state when a liquid becomes a gas evaporation
Name the change of state when a gas becomes a liquid condensation
Name the change of state when a solid becomes a gas (without passing through liquid form) sublimation
Changes of state are caused by the amount of _________ a substance has energy
State changes are examples of ___________ change physical
Physical changes are ones which can be _____________ reversed
A change which creates new products and cannot be reversed is _________ change chemical
The energy stored inside a system by the particles which make it up is known as ____________ energy internal
What is internal energy? The total kinetic energy and potential energy of all the particles in a system
Energy stored within moving objects is __________ kinetic
Energy stored in particles because of their position is…? potential energy
Particles wich are further apart have _________ potential energy more
The energy needed to raise the temperature 1 kg of a material by 1ᵒC is the __________ specific heat capacity
The average kinetic energy of particles is known as the ___________ temperature
The amount of energy required to change the state of one kilogram of a substance with no change in temperature is the …? specific latent heat
Latent heat of fusion is for changing…? solid to liquid
Latent heat of vaporisation is for changing….? liquid to vapour (gas)
Increasing temperature ______________ pressure in a gas if volume is constant increases
The force exerted by gas on a surface as the particles collide with it is known as….? gas pressure
State the units of density kg/m3
State the units of volume m3
Sketch the heating curve for water teacher to draw on board…
Draw a particle diagram for a solid teacher to draw on board…
Draw a particle diagram for a liquid teacher to draw on board…
Draw a particle diagram for a gas teacher to draw on board…
Why doesn't temperature increase during melting? Energy is being used to weaken forces between particles
Why doesn't temperature increase during evaporation Energy is being used to weaken forces between particles
Why does temperature of a substance increase as it is heated? Particles gain more kinetic energy and temperature is a measure of kinetic energy
Particles are arranged regularly in a ….? solid
Particles are arranged randomly, but touching in a …? liquid
Particles move around randomly in a ….? gas
Created by: JBearfield
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