PS-6 vocab Flashcards
kinetic energy
the energy of motion that depends on the mass and speed of the object
potential energy
the energy of position or shape
mechanical energy
he total energy of motion and position of an object
energy transformation
a change from one form of energy to another
Law of Conservation of energy
the law that states that energy is neither crated not destroyed
energy resource
a natural resource that can be converted by humans into other forms of energy in order to do useful work
nonrenewable resource
resources a natural resource that cannot be replaced or that can be replaced over thousands or millions of years
fossil fuels
nonrenewable energy resources that form in the earth’s crust over millions of years from the buried remains of once living organisms
renewable resources
a natural resource that can be used and replaces over and relatively short period of time
temperature
a measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object
thermal expansion
the increase in volume of a substance due to an increase in temperature
absolute zero
the lowest possible temperature and theoretical point were all molecule motion stops (0K=-273Celsius)
heat
the transfer of energy between two objects that are different temperatures, energy is always transferred from objects with higher temperatures to objects with lower temperatures until thermal equilibrium is reached
thermal energy
the total energy of the particles that make up an object
conduction
the transfer of thermal energy from one substance to another through direct contact
