energy & heat transform Flashcards
1
Q
law of conversation of energy
A
energy cannot be created or destroyed just transformed (under normal conditions)
2
Q
heat
A
thermal energy that flows due to a difference in tempernature . heat flows from hot to cold
3
Q
heat transfer
A
a method by which heat flows (conduction convection radiation)
4
Q
conduction
A
heat transfer within or between solid objects
5
Q
convection
A
heat transfer into or fluids
6
Q
radiation
A
heat transfer due to packets of energy called photons that can travel through many substances even empty space
7
Q
insulator
A
a material through which energy (elected thermal or sound) cannot be easily transformed
8
Q
conductor
A
a material through which energy (eletrical thermal or sound) can be easily transferred
9
Q
temperature
A
the measure of the average speed of all particles
