3836378
Description
Mind Map by zoejasper.school, updated more than 1 year ago
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Created by zoejasper.school
over 8 years ago
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P1.1
- Conduction,
convection and
radiation
- Conduction
- Heat is thermal energy. It
can be transferred from
one place to another by
conduction.
- Metals are good conductors
of heat, but non-metals and
gases are usually poor
conductors. Poor conductors
are called insulators.
- Heat energy is
conducted from the hot
end of an object to the
cold end.
- Heat is thermal energy. It
can be transferred from
one place to another by
conduction.
- Convection
- The electrons in a piece of metal can
leave their atoms and move about in
the metal as free electrons. The parts of
the metal atoms left behind are now
positively charged metal ions.
- The ions are packed closely together and they vibrate
continually. The hotter the metal, the more kinetic energy
these vibrations have. This kinetic energy is transferred from
hot parts of the metal to cooler parts by the free electrons.
- These move through the structure
of the metal, colliding with ions as
they go.
- The electrons in a piece of metal can
leave their atoms and move about in
the metal as free electrons. The parts of
the metal atoms left behind are now
positively charged metal ions.
- Conduction
- Conduction,
convection and
radiation
- Conduction
- Heat is thermal energy. It can be
transferred from one place to
another by conduction
- Metals are good conductors of
heat but non-metals and gases are
usually poor conductors. Poor
conductors are called insulators.
- Heat energy is conducted
from the hot end of an
object to the cold end
- Conduction in metals
- Heat is thermal energy. It can be
transferred from one place to
another by conduction
- Conduction
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