Physics Flashcards
Define change in thermal energy
The product of the mass, temperature, specific heat capacity and temperature change of a substance.
Define Chemical Changes
Changes to the chemical structure of a substance
Define condensation
The changing from vapour state to liquid state when a substance is cooling
What is density?
The mass per unit volume of an object
Define evaporation
The changing from liquid to vapour state when a substance is heated
Define freezing
The changing from liquid state to solid state when a substance is cooled
What is internal energy?
Internal energy is the energy stored by the atoms and molecules that make up a system.
What is specific latent heat?
Specific latent heat is the energy required to change the state of 1kg of a substance at a constant temperature.
Define melting
The changing from solid state to liquid state when a substance is heated
Define sublimation
The direct changing of a substance from solid to a vapour state, without passing through the liquid state
