Scienec Flashcards
Energy
convention
heat is circulate through fluids like air or water
Conduction
heat moving through a object through contact
radtion
transfer of heat between objects that are not touching
Defination of enegy
the abilty to cause change or do work
unit of energy
Joules (J)
Melts
Movement
Electrical
Light
Thermal
Sound
Formula of kinetic energy
KE=mv2
formula of GPE
MxGxH
law of conversation energy
Energy cannot be created or derstryoyed can only be transferred or transformed
Defination of transfer
energy trasfer is the pasing of energy ( of same type ) from one object to another
Defination Energy transformation
enegy of transformation is the chaning of one type of energy to another type of
Formula of effcancy
Useful energy output / total energy input x100
insulator
Materials that do not allow electricity to pass through them
semiconductor
Semiconductors are materials which have a conductivity between conductors (generally metals) and nonconductors or insulators
conductor
A conductor, or electrical conductor, is a substance or material that allows electricity to flow through it.