1. Physics: Concepts and Connections, 4th ed
Physics: Concepts and Connections, 4th ed., Art Hobson Chapter 7 – Second Law of Thermodynamics

2. All of the following are ways of expressing the second law of thermodynamics, except:
A) Energy cannot be created or destroyed.
B) Thermal energy flows from high to low temp.
C) The entropy of the universe always increases.
D) It is impossible for a heat engine to be 100% efficient
Answer: A
Page Ref: Section 7.1

3. Which mode of transportation is most efficient in terms of energy use (kg*km/MJ)?
A) Passenger train
B) City bus
C) Automobile carpool (2 passengers)
D) Commercial airplane
E) Riding a bicycle
Answer: E
Page Ref: Section 7.6

4. ? A) B) C) D) E)
Answer: A
Page Ref: Section 2.3