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Heat, types of heat transfer - Coggle Diagram
Heat
is different from
Temperature
refers to
Degree of hotness of an object
is measured using
Thermometers
is a form of
Energy
Comes from
Sources of heat
can come from
Artificial sources
examples
Electrical appliances, cars, factory machines
can come from
Natural sources
examples
Sun, fire, friction
types of heat transfer
Heat loss
causes
Change in state
for example
Gas to Liquid
Liquid to Solid
Decrease in temperature
Contraction of objects
real life examples
Slack in telephone lines
usefullness
prevents snapping in cold temperatures
may occur on
1 more item...
can easily transfer through
good conductors of heat
for example
Metals
real life applications
cookware (pots and pans)
cannot easily transfer through
poor conductors of heat
for example
Styrofoam, wool, plastic, rubber
real life applications
Takeaway boxes, wool jackets, cups
is always
transferred
from
Object of higher temperature
example
hot metal pan
to
Object of lower temperature
example
person's hand
types of heat transfer
Heat gain
causes
increase in temperature
change in state
for example
Solid to Liquid
Liquid to Gas
Expansion of objects
Expansion of objects
real life examples
Gaps in train tracks
Gaps between concrete roads
usefullness
prevents cracks/buckling when object expands in the heat
may occur on
1 more item...
Gaps on bridge structures