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

Understanding the Second Law of Thermodynamics

Interactive Video
•
Physics, Science
•
9th - 12th Grade
•
Hard

Emma Peterson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entropy of the universe is unpredictable.
Entropy of the universe is decreasing.
Entropy of the universe remains constant.
Entropy of the universe is increasing.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is heat related to entropy in a closed system?
Heat has no effect on entropy.
Heat increases entropy by adding disorder.
Heat decreases entropy by organizing molecules.
Heat stabilizes entropy by maintaining temperature.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the number of possible states when kinetic energy increases?
The number of possible states increases.
The number of possible states decreases.
The number of possible states becomes zero.
The number of possible states remains the same.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of increased thermal energy within a system?
It decreases the number of possible states.
It increases the number of possible states.
It stabilizes the number of possible states.
It has no effect on the number of possible states.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In what way can heat be used in engines?
Heat can be used to reduce fuel consumption.
Heat can be used to stop engines.
Heat can be used to expand pistons and do work.
Heat can be used to cool down engines.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't heat-based systems be 100% efficient?
Because they are too complex.
Because they are too small.
Because they use too much fuel.
Because they always lose some energy to the environment.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of heat at the boundary of a system?
Heat is absorbed and stored permanently.
Heat is transferred and can lead to work or entropy.
Heat is reflected back into the system.
Heat is neutralized and has no effect.
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