Thermal energy is the __________ of the particles in a material.
|D)||average kinetic energy|
Which of the following conducts heat most effectively?
__________ is a measure of the average kinetic energy of all the particles in an object.
Refrigerators use the process of __________ to remove heat from the interiors.
The transfer of energy through matter by the direct contact of particles is called __________.
Which of the following has an external combustion engine?
|B)||modern steam engine in a power station|
|C)||gasoline engine in a car|
|D)||early steam locomotive|
Any material that flows is a __________.
A(n) __________ is something that absorbs radiant energy from the Sun.
__________ is the transfer of energy in the form of electromagnetic waves.
Which of the following heating systems utilizes fuel to heat a mass of surrounding air that is blown through a series of ducts?
Heat engines convert __________ energy into __________ energy.
A(n) __________ is a material that does not allow heat to move through it easily.
Which of the following would be the best material to use for making tea kettles?
|A)||aluminum, specific heat 920|
|B)||graphite, specific heat 710|
|C)||copper, specific heat 380|
|D)||iron, specific heat 450|
All heating systems for homes require __________.
The opposite of evaporation is __________.
__________ is the thermal energy that flows from a material with a higher temperature to one with a lower temperature.
Which of the following is the result of convection?
|A)||snow melting in your hand|
|B)||rainforests near the equator|
|C)||Earth heated by the Sun|
|D)||water boiling in a copper tea kettle|
Which of the following would you expect to find in a home with passive solar heating?
|A)||ceiling heating coils|
|B)||wall of large windows|
The specific heat of a material is the amount of energy it takes to raise the temperature of __________ of the material __________.
|A)||100 kg, 100 K|
|B)||1 kg, 1 K|
|C)||10 g, 10 K|
|D)||1 g, 1 Celsius|
How much matter does the vacuum in a thermos bottle contain which prevents heat transfer?
|A)||It is half filled with matter.|
|B)||It is one quarter filled with matter.|
|C)||It is completely filled with matter.|