MCAT PHYSICS - EXAM QUESTIONS
1. How much greater was the acceleration of the 10 kg disc with the larger
stimulus compared to the acceleration of this disc with the original stimulus?
A. 4.5 m/s^2
B. 4 m/s^2
C. 5 m/s^2
D. 10 m/s^2
Answer B
2. What is the final expected velocity for the 10 kg disc when it is lifted with a
force of 145 N?
A. 0.60 m/s
B. 0.85 m/s
C. 1.20 m/s
D. 1.52 m/s
, Answer B
3. Which of the following is most likely the maximum disc mass that could be
suspended from an average frog muscle during an isometric contraction with
maximal stimulation?
A. 10 kg
B. 12 kg
C. 16 kg
D. 22 kg
Answer C
4. Which of the following is true of a disc at the moment when concentric
contraction of the muscle ceases and eccentric contraction begins?
A. Both its kinetic and gravitational potential energies are at a maximum.
B. Both its kinetic and gravitational potential energies are at a minimum.
C. Its kinetic energy is at a maximum and its gravitational potential energy is
,at a minimum.
D. Its kinetic energy is at a minimum and its gravitational potential energy is at
a maximum.
Answer D
, 5. Suppose the experiment is repeated at a very high altitude, where the force
of gravity is slightly lower. After adjusting the stimulation to the level needed to
achieve isometric contraction, concentric contraction is achieved by increasing
the stimulation the same amount that it was increasing during the original
experiment. How will the results obtained during concentric contraction be
different from those of the original experiment?
A. Both the muscle force and the disc acceleration will be reduced.
B. Both the muscle force and the disc acceleration will be greater.
C. The muscle force will be the same, and the disc acceleration will be greater.
D. The muscle force will be reduced, and the disc acceleration will be the
same.
Answer D
6. If average IVA was calculated to be 3.2 m/s^2 and peak isometric myocardial
velocity was measured at 8 cm/s, how long did it take to reach peak velocity?
Assume initial myocardial velocity was 0 cm/s.
1. How much greater was the acceleration of the 10 kg disc with the larger
stimulus compared to the acceleration of this disc with the original stimulus?
A. 4.5 m/s^2
B. 4 m/s^2
C. 5 m/s^2
D. 10 m/s^2
Answer B
2. What is the final expected velocity for the 10 kg disc when it is lifted with a
force of 145 N?
A. 0.60 m/s
B. 0.85 m/s
C. 1.20 m/s
D. 1.52 m/s
, Answer B
3. Which of the following is most likely the maximum disc mass that could be
suspended from an average frog muscle during an isometric contraction with
maximal stimulation?
A. 10 kg
B. 12 kg
C. 16 kg
D. 22 kg
Answer C
4. Which of the following is true of a disc at the moment when concentric
contraction of the muscle ceases and eccentric contraction begins?
A. Both its kinetic and gravitational potential energies are at a maximum.
B. Both its kinetic and gravitational potential energies are at a minimum.
C. Its kinetic energy is at a maximum and its gravitational potential energy is
,at a minimum.
D. Its kinetic energy is at a minimum and its gravitational potential energy is at
a maximum.
Answer D
, 5. Suppose the experiment is repeated at a very high altitude, where the force
of gravity is slightly lower. After adjusting the stimulation to the level needed to
achieve isometric contraction, concentric contraction is achieved by increasing
the stimulation the same amount that it was increasing during the original
experiment. How will the results obtained during concentric contraction be
different from those of the original experiment?
A. Both the muscle force and the disc acceleration will be reduced.
B. Both the muscle force and the disc acceleration will be greater.
C. The muscle force will be the same, and the disc acceleration will be greater.
D. The muscle force will be reduced, and the disc acceleration will be the
same.
Answer D
6. If average IVA was calculated to be 3.2 m/s^2 and peak isometric myocardial
velocity was measured at 8 cm/s, how long did it take to reach peak velocity?
Assume initial myocardial velocity was 0 cm/s.
