Energy - Chapter 9 Flashcards
Electrical energy
energy made available by the flow of electric charge through a conductor
Gravitational potential energy
energy stored due to the height of an object
chemical energy
energy that comes from chemical reactions
elastic potential energy
material that can return to its original state after being stretched
nuclear energy
energy stored at the centre of atoms
efficiency
the usefulness of an energy
Conduction
Heat transferred through collisions between particles
Insulator
a conductor of heat
Convection
heat transferred through the flow of particles
Radiation
heat transfer that does not require paticles
radiant heat
heat that is transferred by radiation
reflected
bounced off
transmitted
it is passed through something
absorbed
taken in
decidous
plants that lose leaves during winter and autumn
luminous
releasing its own light
incandescant
describes objects that emit light when they are hot
bioluminescant
describes living things that release light energy
non-luminous
describes objects that do not emit their own light, but can be seen by reflected light
scattered
describes light sent in many directions by small particles within a substance
Law of Conservation of energy
a law that claims that energy can’t be made or lost
