PHY 131 EXAM 5 | QUESTIONS AND
ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTIONS
A car with closed windows makes a left hand turn. A helium filled balloon in the car will
a. move to the left
b. move to the back
c. move to the right
d. not move
e. move to the front - ANSWER>a
Atmospheric pressure is caused by the
a. weight of the atmosphere
b. density of the atmosphere
c. effect of the suns every on the atmosphere
d. temperature of the atmosphere - ANSWER>a
,Two people are balanced on a see-saw. If one person leans toward the center of the see-saw, that persons end of
the see-saw will
a. rise and then fall
b. stay at the same level
c. fall and then rise
d. rise
e. fall - ANSWER>d
Water pressure is greatest against the
a. bottom of a submerged object
b. none of these
c. is the same against all surfaces
d. sides of a submerged object
e. top of a submerged object - ANSWER>a
A completely submerged object always displaces its own
a. non elf these
, b. all of these
c. density of fluid
d. volume of fluid
e. weight of fluid - ANSWER>d
The white hot sparks that strike your skin from a 4th of july type sparkler don't harm you because
a. the energy per molecule is high, but little energy is transferred because of the few molecules in the spark
b. they have a low temperature
c. the energy per molecule is very low - ANSWER>a
When water at 4 degrees C is heated it expands. When water at 4 degrees C is cooled, it
a. neither contracts nor expands
b. contracts
c. expands - ANSWER>c
Since each rolling wheel of a railroad train is tapered, the narrow part of the wheel has a tangential speed that is
a. the same as that of the wide part
ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTIONS
A car with closed windows makes a left hand turn. A helium filled balloon in the car will
a. move to the left
b. move to the back
c. move to the right
d. not move
e. move to the front - ANSWER>a
Atmospheric pressure is caused by the
a. weight of the atmosphere
b. density of the atmosphere
c. effect of the suns every on the atmosphere
d. temperature of the atmosphere - ANSWER>a
,Two people are balanced on a see-saw. If one person leans toward the center of the see-saw, that persons end of
the see-saw will
a. rise and then fall
b. stay at the same level
c. fall and then rise
d. rise
e. fall - ANSWER>d
Water pressure is greatest against the
a. bottom of a submerged object
b. none of these
c. is the same against all surfaces
d. sides of a submerged object
e. top of a submerged object - ANSWER>a
A completely submerged object always displaces its own
a. non elf these
, b. all of these
c. density of fluid
d. volume of fluid
e. weight of fluid - ANSWER>d
The white hot sparks that strike your skin from a 4th of july type sparkler don't harm you because
a. the energy per molecule is high, but little energy is transferred because of the few molecules in the spark
b. they have a low temperature
c. the energy per molecule is very low - ANSWER>a
When water at 4 degrees C is heated it expands. When water at 4 degrees C is cooled, it
a. neither contracts nor expands
b. contracts
c. expands - ANSWER>c
Since each rolling wheel of a railroad train is tapered, the narrow part of the wheel has a tangential speed that is
a. the same as that of the wide part
