PY 131 EXAM 2 QUESTIONS WITH 100%
CORRECT ANSWERS | LATEST
VERSION 2025/2026.
The faster a fluid moves - ANS the less its internal pressure
the buoyant force on a rock is least when the rock is submerged - ANS anywhere (near
bottom, halfway down, near surface, it does not matter as long as its submerged)
an object is placed exactly halfway between the earth and the sun, the object will fall toward
the - ANS sun
when an iron ring is heated, the hole becomes - ANS larger
a black hole is - ANS simply the remains of a giant star that has undergone gravitational
collapse
inside a freely-falling elevator, there would be no - ANS apparent weight for you
The cooling effect inside a refrigerator is produced by - ANS vaporizing the refridgeration
liquid
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, a completely submerged object always displaces its own - ANS volume of fluid
Newton's law of cooling applies to objects that are - ANS heating and cooling
when an object is partly or wholly immersed in a liquid, it is buoyed up - ANS by a force equal
to the weight of liquid displaced
an asteroid exerts a 160-N gravitational force on a nearby spacecraft. if the spacecraft moves to
a point 4 times as far from the center of the asteroid, the force will be - ANS 10 N
(gravitational force is about 1/d^2)
if the sun were twice as massive - ANS both its pull on earth would double and the pull of the
earth on the sun would double
when water at 4 degrees C is heated it expands, when water at 4 degrees C is cooled, it -
ANS expands
a bullet fired horizontally over level ground hits the ground in 0.5 second. If it had been fired
with 10 times the speed in the same direction, it would have hit the ground in - ANS 0.5
seconds
after the semester you throw you clicker straight up. when it reaches its maximum height the
velocity is zero and the acceleration is - ANS -10m/s/s
a lobster crawls onto a bathroom scale submerged at the bottom of the ocean. Compared to its
weight above the surface of the ocean, the lobster will have an apparent weight under water
that is - ANS less
near the top of a mountain, water in an open pot boils at - ANS a lower temperature than at
sea level
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
CORRECT ANSWERS | LATEST
VERSION 2025/2026.
The faster a fluid moves - ANS the less its internal pressure
the buoyant force on a rock is least when the rock is submerged - ANS anywhere (near
bottom, halfway down, near surface, it does not matter as long as its submerged)
an object is placed exactly halfway between the earth and the sun, the object will fall toward
the - ANS sun
when an iron ring is heated, the hole becomes - ANS larger
a black hole is - ANS simply the remains of a giant star that has undergone gravitational
collapse
inside a freely-falling elevator, there would be no - ANS apparent weight for you
The cooling effect inside a refrigerator is produced by - ANS vaporizing the refridgeration
liquid
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, a completely submerged object always displaces its own - ANS volume of fluid
Newton's law of cooling applies to objects that are - ANS heating and cooling
when an object is partly or wholly immersed in a liquid, it is buoyed up - ANS by a force equal
to the weight of liquid displaced
an asteroid exerts a 160-N gravitational force on a nearby spacecraft. if the spacecraft moves to
a point 4 times as far from the center of the asteroid, the force will be - ANS 10 N
(gravitational force is about 1/d^2)
if the sun were twice as massive - ANS both its pull on earth would double and the pull of the
earth on the sun would double
when water at 4 degrees C is heated it expands, when water at 4 degrees C is cooled, it -
ANS expands
a bullet fired horizontally over level ground hits the ground in 0.5 second. If it had been fired
with 10 times the speed in the same direction, it would have hit the ground in - ANS 0.5
seconds
after the semester you throw you clicker straight up. when it reaches its maximum height the
velocity is zero and the acceleration is - ANS -10m/s/s
a lobster crawls onto a bathroom scale submerged at the bottom of the ocean. Compared to its
weight above the surface of the ocean, the lobster will have an apparent weight under water
that is - ANS less
near the top of a mountain, water in an open pot boils at - ANS a lower temperature than at
sea level
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
