science ch6 Flashcards
Temperature
is the measure of how hot or cold something is;specifically a measure of the average kinetic energy of the particles in the object.
Thermal expansion
an increase in the size of a substance in response to an increase in the temperature of a substance
Absolute zero
the temperature at which molecular energy is at its minimum
Heat
the energy transferred between two objects that are at different temperatures
Thermal energy
the kinetic energy of a substances atoms
Thermal conduction
the transfer of energy as heat through a material
thermal conductor
a material through which energy cam be transferred as heat
thermal insulator
a material that reduces or prevents the transfer of heat
convection
the transfer of thermal energy by the circulation or movement of a liquid or gas
radiation
the transfer of energy as electromagnetic waves
specific heat
is the amount of energy needed to change the temperature of 1kg of a substance by 1c
states of matter
the physical forms of matter which include a solid,liquid, and gas.
change of state
a change of a substance from on physical state to another
insulation
a substance that reduces the transfer of electricity,heat or sound
heat engine
a machine that transforms heat into mechanical energy or work
