Energy 1 Flashcards
What is thermal energy?
The energy possessed by hot objects, caused by the random motions of the particles in them
performs
work or heat
How do you work out efficiency?
loc sym
useful energy transferred / total energy input to the system x 100
5 fish
performs
The energy possessed by any moving object
si
joule
symbol
E
must be transferred to
an object
definition
is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object
Energy cannot be
Created or destroyed
it can only be
Transferred
Sankey diagrams are a specific type of
flow diagram
The energy emitted by luminous objects
Light energy
The energy carried by longitudinal waves from vibrating objects
sound energy
law of the conservation of energy?
Energy cannot be created or destroyed
Thermal conduction loc
symbol
red duck
Thermal conduction used on metal or non
both
What are poor conductors of heat?
non-metal solids, liquids and gases
transfer of heat through fluids
Convection
is the
quantitative property
Convection loc
symbol
1
Cone blue
thermal radiation loc
symbol
2
radiator red
type of quantity
Conserved
closely related to
Mass
closely related to mass because
mass–energy equivalence
