PHA Review Exam 2 Questions & Answers 2024/2025
Suppose a truck is pulling a trailer. Which object is doing work on the other?
a. Truck
b. Trailer
c. Both
d. Neither - ANSWERSa. Truck
Consider a water skier being pulled by a rope attached to a boat. Which statement is true?
a. The skie...
Suppose a truck is pulling a trailer. Which object is doing work on the other?
a. Truck
b. Trailer
c. Both
d. Neither - ANSWERSa. Truck
Consider a water skier being pulled by a rope attached to a boat. Which statement is true?
a. The skier is doing work.
b. Work is being done on the skier.
c. Neither
d. Both - ANSWERSb. Work is being done on the skier.
What type of energy does an airplane have due to its speed?
a. Gravitational (GravE)
b. Kinetic (KinE)
c. Thermal (ThermE)
d. Chemical (ChemE)
e .Nuclear (NuclE) - ANSWERSb. Kinetic (KinE)
What type of energy does an airplane have due to its altitude?
a. Gravitational (GravE)
b. Kinetic (KinE)
c. Thermal (ThermE)
d. Chemical (ChemE)
, e .Nuclear (NuclE) - ANSWERSa. Gravitational (GravE)
What type of energy does an airplane have due to its fuel?
a. Gravitational (GravE)
b. Kinetic (KinE)
c. Thermal (ThermE)
d. Chemical (ChemE)
e .Nuclear (NuclE) - ANSWERSd. Chemical (ChemE)
What type of energy does an airplane have due to its temperature?
a. Gravitational (GravE)
b. Kinetic (KinE)
c. Thermal (ThermE)
d. Chemical (ChemE)
e .Nuclear (NuclE) - ANSWERSc. Thermal (ThermE)
From an energy standpoint, what happens when a set of keys falls toward the ground?
a. Gravitational energy is completely destroyed.
b. Kinetic energy is created from nothing.
c. Gravitational energy is converted to kinetic.
d. Kinetic energy is converted to gravitational. - ANSWERSc. Gravitational energy is converted to kinetic.
From an energy standpoint, what happens when a bowler rolls a bowling ball?
a. KinE in the ball is created from nothing.
b. ChemE in the bowler is completely destroyed.
c. ChemE in the bowler is converted to KinE and transferred to the ball.
d. KinE in the ball is converted to ChemE and transferred to the bowler. - ANSWERSc. ChemE in the
bowler is converted to KinE and transferred to the ball.
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