Energy and heat transfer Flashcards
1
Q
Law of conservation of energy
A
energy can not be created or destroyed (under normal conditions)
2
Q
heat
A
thermal energy that flows due to a difference in temperature. heat flows from hot to cold.
3
Q
heat transfer
A
a method by which heat flows
4
Q
conduction
A
heat transfer within or between solid objects.
5
Q
convection
A
heat transfers into or out of fluids
6
Q
radiation
A
heat transfer due to pockets of energy called photons that can travel through many substances, even empty space.
7
Q
insulator
A
a material which energy cannot be easily transferred
8
Q
conductor
A
a material which energy can be easily transferred
9
Q
temperature
A
average speed of all particles
10
Q
thermal energy
A
the total energy of all particles in a object
