Energy- science Flashcards
Law of Conservation of Energy
a law that states that energy cannot be made or lost. However, energy can be transformed from one type to another or transferred from one object to another.
Electrical Energy
the energy made available by the flow of electric charge through a conductor
gravitational potential energy
energy stored due to the height of an object above a base level
Chemical Energy
potential energy derived from chemical reactions
elastic potential energy
the potential energy stored in a stretched elastic material
Nuclear energy
the energy stored at the centre of atoms, the tiny particles that make up all substances.
efficiency
the fraction of energy supplied to a device as useful energy. It is usually expressed as a percentage.
Conduction
transfer of heat through collisions between particles
convection
transfer of heat through the flow of particles
insulators
a material that is a poor conductor of heat
radiation
a method of heat transfer that does not require particles to transfer heat from one place to another
radiant heat
heat transferred by radiation, as from the sun to the Earth
reflected
bounced off
transmitted
passed through something, such as light or sound passing through air
absorbed
taken in
