What does the second law of thermodynamics state about entropy?
Thermodynamics

Flashcard
•
Physics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The second law of thermodynamics states that the entropy of a system tends to increase.
2.
FLASHCARD QUESTION
Front
How does thermal energy move between objects?
Back
Thermal energy always moves from a high temperature object to a lower temperature object.
3.
FLASHCARD QUESTION
Front
Why can't a heat engine be 100% efficient?
Back
A heat engine cannot be 100% efficient because heat is always created.
4.
FLASHCARD QUESTION
Front
What must be done for energy to be less concentrated?
Back
Work must be done to make energy less concentrated.
5.
FLASHCARD QUESTION
Front
How can energy be transferred from a cool object to a warm object?
Back
Energy can be transferred from a cool object to a warm object if work is done.
6.
FLASHCARD QUESTION
Front
Define thermal energy.
Back
Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.
7.
FLASHCARD QUESTION
Front
What is entropy?
Back
Entropy is a measure of the disorder or randomness in a system.
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