4853146
Description
Mind Map by tom lamprell, updated more than 1 year ago
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Created by tom lamprell
about 8 years ago
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|
P1
- A- Energy
- Heat radiation
- Heat energy tends to flow
away from a hotter object to
cooler surroundings
- Radiation
- Infrared radiation
- Emission of electromagnetic
waves
- An object that is hotter than its
surroundings emits more
radiation than it absorbs.
Therefore cooling down
- Emission of electromagnetic
waves
- Dark, matt surfaces absorb
more infrared radiation than
light shiny surfaces
- Shiny surfaces keep heat in
- Dark, matt surfaces absorb light in
- Shiny surfaces keep heat in
- Infrared radiation
- Heat energy tends to flow
away from a hotter object to
cooler surroundings
- Kinetic theory
- Describes how particles move in
different states
- Solids
- Strong forces of attraction hold
the particles together in a fixed
regular arrangement
- Strong forces of attraction hold
the particles together in a fixed
regular arrangement
- Liquids
- Weaker forces of attraction than a solid. Although they are close together
they move around each other and form irregular aggangements. They
have weak intermolecular bonds
- Weaker forces of attraction than a solid. Although they are close together
they move around each other and form irregular aggangements. They
have weak intermolecular bonds
- Gases
- There are almost no forces of attraction between the particles, they
have more energy than the other two states and are free to move in
often random directions at high speeds
- There are almost no forces of attraction between the particles, they
have more energy than the other two states and are free to move in
often random directions at high speeds
- Solids
- Describes how particles move in
different states
- Specific heat capacity
- Working out how much energy an object can store
- The equation is E = m x c x θ
E= energy transferred m=
mass (kg) c= specific heat
capacity θ= temperature
change
- The equation is E = m x c x θ
E= energy transferred m=
mass (kg) c= specific heat
capacity θ= temperature
change
- Working out how much energy an object can store
- Conduction + convection
- Convection
- This occurs when more energetic particles
move from a hotter region to a cooler
region and take heat energy with them
- This occurs when more energetic particles
move from a hotter region to a cooler
region and take heat energy with them
- Conduction
- Occurring mainly in solids,
the process is where
vibrating particles pass on
extra kinetic energy to
neighbouring particles
- Metals are good conductors due
to free electrons in their outer
shell
- Occurring mainly in solids,
the process is where
vibrating particles pass on
extra kinetic energy to
neighbouring particles
- Convection
- Condensation+
Evaporation
- Condensation
- When a gas turns to a liquid
it is because as it cools the
particles in the gas slow
down and lose kinetic
energy. The attractive
forces then pull the
particles together
- When a gas turns to a liquid
it is because as it cools the
particles in the gas slow
down and lose kinetic
energy. The attractive
forces then pull the
particles together
- Evaporation
- When a liquid turns to a gas it
is because the particles have
enough kinetic energy that
they are able to overcome the
other attractive forces of the
liquid and exit the liquid. Then
becoming a gas
- When a liquid turns to a gas it
is because the particles have
enough kinetic energy that
they are able to overcome the
other attractive forces of the
liquid and exit the liquid. Then
becoming a gas
- Condensation
- Heat radiation
- B- Electricity + waves
- Waves
- Longitudinal waves
- Longitudinal waves have vibrations
along the same line, as the vibrations
are parallel to the direction of energy
transfer of the wave
- Longitudinal waves have vibrations
along the same line, as the vibrations
are parallel to the direction of energy
transfer of the wave
- Wave speed = Frequency x
Wavelength
- Transverse waves
- Transverse waves have sideways
vibrations, perpendicular to the direction
of energy transfer of the wave
- Transverse waves have sideways
vibrations, perpendicular to the direction
of energy transfer of the wave
- Properties of waves
- Longitudinal waves
- Waves
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