Natural Sciences &
Technology for Classroom
I
Comprehensive Exam Review
Q&A
2024
,1. Multiple Choice: What principle explains the behavior of non-
Newtonian fluids under stress?
a) Pascal's Law
b) Bernoulli's Principle
c) The Dilatant Effect
d) Boyle's Law
Correct Answer: c) The Dilatant Effect
Rationale: The Dilatant Effect describes the property of non-Newtonian
fluids to become more viscous under stress, which is not explained by the
other options that relate to different fluid and gas behaviors.
2. Fill-in-the-Blank: The _________ number is a dimensionless quantity
used in fluid mechanics to describe flow patterns in different fluid flow
situations.
Correct Answer: Reynolds
Rationale: The Reynolds number helps predict flow patterns in different
fluid flow situations, such as laminar or turbulent flow.
3. True/False: The concept of 'dark matter' was proposed to account for the
missing mass in the rotational speed of galaxies.
Correct Answer: True
Rationale: Dark matter is an unseen mass that has been hypothesized to
account for discrepancies in the calculation of the mass of galaxies,
especially when observing their rotational speeds.
, 4. Multiple Choice: Which of the following is a key characteristic of
quantum entanglement?
a) Particles remain independent of each other's state
b) Measurement of one particle instantaneously affects the state of
another
c) Particles can only be entangled within a small, confined area
d) Entanglement is a macroscopic phenomenon
Correct Answer: b) Measurement of one particle instantaneously affects
the state of another
Rationale: Quantum entanglement is a phenomenon where particles
become interconnected such that the state of one particle instantaneously
influences the state of another, regardless of the distance separating them.
5. Fill-in-the-Blank: In the field of biotechnology, CRISPR is a
revolutionary tool for _________.
Correct Answer: gene editing
Rationale: CRISPR is a technology that allows scientists to edit genomes
with unprecedented precision, efficiency, and flexibility.
6. True/False: The Higgs boson is responsible for providing mass to all
elementary particles.
Correct Answer: False
Rationale: The Higgs boson is responsible for providing mass to some
elementary particles through the Higgs field, but not all particles derive their
mass from this mechanism.