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38 Cards in this Set

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  • Back
In what forms is water a fluid? give 3
tap water, water vapor, steam
In what form is water not a fluid give 2
snow and ice
3 examples of a method of heat transfer?
conduction, radiation, convection
which kind of material would reflect radiant energy?
light colored materials
What is an example of a heat mover?
refrigerator
OTEC
Ocean thermal lenergy conversion
1 example of a method that is NOT a heat transfer
insulation
1 example of a poor thermal insulator
aluminum
Waste gases are removed during what of a four-stroke engine?
exhaust strjoke
What is the main difference between electrical and fored-air heating systems?
electrical systems have no furnaces and no fuel is burned. forced air systems use fuel-burning furnaces
Heat can move easily through a good thermal
conductor
What changes thermal energy into mechanical energy?
heat engine
what are usually the best conductors of heat
metals
acting solar heating
collecting the sun's energy with solar panels, heating water with that energy and storing the heated water to use the energy later.
in solar heating systems, radiant energy from the sun is converted into?
thermal energy
what are important considerations when selecting insulation for a house?
R-value
location
climate
how does conduction differ from convection?
in conduction, particles remain in place, in convection, fluid particles move from place to place
what is the most important way thermal energy is trasferred in fluids?
convection
What does no require the presence of particles of matter?
radiation
insulator
a device that does not allow heat or electrons to move through it easily
conduction
The transfer of energy through matter in which energy moves from particle to particle, easier in solids
combustion
rapid burning
In order for radiant energy to change to thermal energy, it must be?
absorbed
How is energy transferred?
particles moving at different speeds bump into each other
convection
transfer of energy by bulk movement of matter in which particles move from place to place in a fluid, carrying the energy with them.
fluid
any liquid that flows liquids and gasses are fluid
solar energy
enegy from the sun
FREE- converted to thermal energy to heat buildings
heat mover
example
device that transfers thermal energy fro one place to another
refrigerator, air conditioner
external combustion engine
give example
engine in which fuel is burned outside the engine.
old fashioned locomotive
heat engine
example
device that converts themal energy into mechanical energy. car engine
internal combustion engine
example
device uin which fuel is burned inside the engine (cylinders)
car engine
solar collector
device that absorbs radiant energy from the sun and converts it to thermal energy to heat buildings
radiator
device with large surface area that transfers heat to surroung air by conduction
insulator
a device that does not allow heat or electrons to move through it easily
radiation
energy transfer by electromagnetic waves
ocean thermal
process that uses difference in water temperatures to operate a heat engine
combustion
rapid burning
Where does conduction take place
solids, liqids and gases