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Heat and Thermal Energy

Science

Heat and Thermal Energy Chapter Video

Heat and Thermal Energy Chapter Video

absolute zero

the lowest possible temperature (0 K, -273°C)
absolute zero Simple Definition

conduction

the transfer of heat energy between two objects through direct contact
conduction Simple Definition

convection

the transfer of heat energy from a warmer area to a cooler area in a liquid or gas
convection Simple Definition

convection current

the movement pattern in a fluid caused by temperature differences within the fluid
convection current Simple Definition

heat

the thermal energy transferred from a warmer object to a cooler object
heat Simple Definition

heat engine

a machine that converts thermal energy into mechanical energy
heat engine Simple Definition

radiation

the transfer of energy by electromagnetic waves, it does not require matter
radiation Simple Definition

specific heat

the amount of heat needed to raise the temperature of 1kg of a substance by 1°C
specific heat Simple Definition

temperature

how hot or cold something is, it is determined by the kinetic energy of its particles
temperature Simple Definition

thermal energy

the energy of the moving particles in an object
thermal energy Simple Definition

thermal expansion

an increase in the size of a substance when it is heated
thermal expansion Simple Definition

thermal insulator

a material that does not conduct heat well
thermal insulator Simple Definition

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