Phys. Science 16 Flashcards
(25 cards)
What conducts heat well?
Metals
Celsius degree
unit of temperature
Energy from the sun reaches Earth by…
Radiation
Temperature is related to the…
average kinetic energy of particles in an object
What measures a change in temperature
A calorimeter
What is based on the property of thermal expansion
A thermometer
Specific heat=……= c
Joules/Grams times degrees Celsius
Steam heating is often used to heat many buildings from a…
…from a central location
The 1st law of thermodynamics applies to…
….heating objects, transferring thermal energy, and doing work on a system
Where does a refrigerant vaporize and condense
inside the tubing of a heat pump
Which law? Energy can flow from cold to hot if work is done on a system
The second law of thermodynamics
A forced air system involves a
furnace and a blower
Absolute zero cannot be reached because of which law
The third law of thermodynamics
In a steam engine …..; heat is converted to work, and …..
In a steam engine fuel is burned outside the engine; heat is converted to work, and hot steam pushes a piston
How hot or cold an object can be measured in units of
Kelvin or Celsius
A hot dinner plate has greater thermal energy than a plate at …..
Room temperature
A decrease in volume due to a temp increase is called
Thermal contraction
The transfer of thermal energy with NO transfer of matter is called…
Conduction
Radiation
The transfer of energy waves through space
A conductor…
Conducts thermal energy well
The study of conversion between heat and other energy forms is called
Thermodynamics
Thermal energy not converted into work is called…
Waste heat
In auto engines, …, is caused by the crankshaft
Rotary motion
Steam heating systems are most similar to ….
Hot water systems
