can be pored technically but they the air so they
float
particles can flow over eachother
no fixed pattern
Specific Latent Heat
vaporisation
how to boil 1kg of the substance
without changing its
temperature
fusion
how to melt 1kg of the substance
without changing its
temperature
Density
If an object sinks it is because the volume,
mass or weight of the object pushing down is
more than the volume, mass or weight
pushing up.
If an object floats it is because the
volume, mass or weight of the object
pushing down is less than the volume,
mass or weight pushing up
Equations
Kinetic = 1/2 x mass x velocity2
Work done = force x distance
Gpe = mass x 10 x height
Power = work done/time
Epe = 1/2 x spring constant x extention2
Fuels
Non-renewable
Fossil fuels
Coal
Natural gasses
Oil
All get burned to heat up things to power things
Fossil fuels are a highly compressed, ancient once living
matter. A very concentrated form of chemical energy. Can
be used for heating, transport and generating electricity.
Renewable
Bio-fuel
The chemical energy stored in living organisms can be
used for heating, transport and generating electricity.
Geo-thermal
Deep underground the earths rocks are naturally very hot due to
radio-activity decay. We can turn their thermal energy into
electricity.
The sun
The earth gets heat and light from the sun all the time.
Wave capture
The wind blowing on the water makes waves. These waves
have kinetic energy. Using machines that bob up and down
in the waves, this energy can be turned into electricity which
we can use in our homes.
Neuclear
Uranium-235 is the fuel that is used to power neuclear fuel. No harmful
gasses are produced, but it produces harmful radiation waste.
Hydro-electric
Energy from rivers. The sun powers the water cycle and
HEP uses water falling under gravity to turn turbines,
to make electricity.