Thermal Energy
Practice Test
1.
If the final temperature of a system is greater than the initial temperature, δ
t
is __________.
a.
eliminated
b.
reduced
c.
negative
d.
positive
Hint
2.
You have equal masses of four of the substances listed in Table 12-1. All are at the same initial temperature, and then you place them in a hotter room. Which of the objects' temperatures will increase the most slowly?
a.
Aluminum
b.
Glass
c.
Brass
d.
Zinc
Hint
3.
An increase in heat in a system __________.
a.
reduces temperature
b.
decreases entropy
c.
has less kinetic energy
d.
increases entropy
Hint
4.
A perpetual motion machine violates which law?
a.
third law of thermodynamics
b.
third law of conservation
c.
first law of thermodynamics
d.
first law of gravity
Hint
