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Unit 4 Review

Across
Thermal energy is the ____ of the particles that make up a system.
Refrigerators use the process of _____ to remove thermal energy from the interiors.
____ Law of Thermodynamics is work done on the system plus heat into the system
All heating systems for homes require _____.
A(n) _____ is a material that does not allow thermal energy to be transferred through it easily.
is the thermal energy that is transferred from a material with a higher temperature to one with a lower temperature
Which heating systems use fuel to heat a mass of surrounding air that is blown through a series of ducts?
Which conducts thermal energy most effectively?
Down
A(n) _____ transforms radiant energy from the Sun into thermal energy.
The average kinetic energy of its particles
Has a specific heat of 4,184 J/(kg* oC)
Energy is transferred from the Sun to Earth by
The transfer of energy through matter by the direct contact of particles is called ______
Any material that flows is a _____.
___ Law of Thermodynamics states heat will move from high to low
How much matter does the vacuum contain