Summer 2026 PHYS 350 Midterm II True or False | Questions with 100%
Verified Answers | Latest Update
Question: If the gauge pressure at a certain depth in Lake Michigan is 3.5 atmospheres, the absolute
pressure at that depth is 4.5 atm.
Answer:
True
Question: A stone rolls down a sloping hillside. The normal force that the surface of the hill exerts on the
stone is equal to the stone's weight.
Answer:
False
Question: If the hydrostatic pressure at a certain depth in the ocean is 2 atm, the hydrostatic pressure will
be 4 atm if you go twice as deep.
Answer:
True
Question: A long vertical metal cylinder is filled with oil. If a piston pushes on the top of this cylinder
and increases the pressure there by 6,000 Pa, the pressure at the bottom will increase considerably more
due to the weight of the oil.
Answer:
False
Question: As a stone slides down a frictionless, ice-covered hill, its mechanical energy is conserved but
its momentum is not conserved.
Answer:
True
Question: Heat can be transformed into work with 100% efficiency, but work cannot be transformed into
heat with 100% efficiency.
Answer:
False
Question: Two cars collide, lock bumpers, and eventually slide to a stop due to friction with the roadway.
During this entire process, mechanical energy and momentum are both conserved.
Answer:
False
, Question: A car is being towed at constant velocity on a horizontal road using a horizontal chain. The
tension in the chain must be equal to the weight of the car in order to maintain constant velocity.
Answer:
False
Question: If the forces on an object balance, it does not necessarily follow that the torques balance.
Answer:
True
Question: Water turns to ice when it is placed in a freezer. During this process, the entropy of this water
has decreased.
Answer:
True
Question: A refrigerator increases the entropy of its hot reservoir at the same time as it decreases the
entropy of its cold reservoir, but a heat engine does just the opposite.
Answer:
False
Question: In a ballistics test, a bullet traveling horizontally strikes and embeds itself in a large block that
is free to move. During this process, the bullet transfers all of its momentum to the block.
Answer:
False
Question: A 3.5 kg mass is pressed against a spring of spring constant 90.0 N/m, compressing it 25.0 cm.
The greatest amount of kinetic energy this mass could gain after it is released is 2.81 J.
Answer:
True
Question: If two different gases are at the same temperature, the average translational kinetic energy per
molecule must be the same for both of them.
Answer:
True
Question: If a uniform sphere is compressed to half of its original diameter, its mass remains the same
but its density becomes 8 times as great.
Answer:
True
Verified Answers | Latest Update
Question: If the gauge pressure at a certain depth in Lake Michigan is 3.5 atmospheres, the absolute
pressure at that depth is 4.5 atm.
Answer:
True
Question: A stone rolls down a sloping hillside. The normal force that the surface of the hill exerts on the
stone is equal to the stone's weight.
Answer:
False
Question: If the hydrostatic pressure at a certain depth in the ocean is 2 atm, the hydrostatic pressure will
be 4 atm if you go twice as deep.
Answer:
True
Question: A long vertical metal cylinder is filled with oil. If a piston pushes on the top of this cylinder
and increases the pressure there by 6,000 Pa, the pressure at the bottom will increase considerably more
due to the weight of the oil.
Answer:
False
Question: As a stone slides down a frictionless, ice-covered hill, its mechanical energy is conserved but
its momentum is not conserved.
Answer:
True
Question: Heat can be transformed into work with 100% efficiency, but work cannot be transformed into
heat with 100% efficiency.
Answer:
False
Question: Two cars collide, lock bumpers, and eventually slide to a stop due to friction with the roadway.
During this entire process, mechanical energy and momentum are both conserved.
Answer:
False
, Question: A car is being towed at constant velocity on a horizontal road using a horizontal chain. The
tension in the chain must be equal to the weight of the car in order to maintain constant velocity.
Answer:
False
Question: If the forces on an object balance, it does not necessarily follow that the torques balance.
Answer:
True
Question: Water turns to ice when it is placed in a freezer. During this process, the entropy of this water
has decreased.
Answer:
True
Question: A refrigerator increases the entropy of its hot reservoir at the same time as it decreases the
entropy of its cold reservoir, but a heat engine does just the opposite.
Answer:
False
Question: In a ballistics test, a bullet traveling horizontally strikes and embeds itself in a large block that
is free to move. During this process, the bullet transfers all of its momentum to the block.
Answer:
False
Question: A 3.5 kg mass is pressed against a spring of spring constant 90.0 N/m, compressing it 25.0 cm.
The greatest amount of kinetic energy this mass could gain after it is released is 2.81 J.
Answer:
True
Question: If two different gases are at the same temperature, the average translational kinetic energy per
molecule must be the same for both of them.
Answer:
True
Question: If a uniform sphere is compressed to half of its original diameter, its mass remains the same
but its density becomes 8 times as great.
Answer:
True
