BYU PHYSICAL SCIENCE 100 CHALLENGE EXAM REVIEW UPDATED
ACTUAL QUESTIONS AND CORRECT ANSWERS
Question 1.
Causality
Correct Answer: Cause must always precede the effect.
Question 2.
Element
Correct Answer: A substance made of atoms, all of which contain the same
number of protons.
Question 3.
Position Symmetry
Correct Answer: The laws of the universe are not different at different locations.
Question 4.
Authority
Correct Answer: An accepted source of expert information or advice
Question 5.
Gravity
Correct Answer: The force that arises from the interaction of anything with mass
Question 6.
Law
Correct Answer: A well-tested theory, so firm as to be unquestioned by science
Question 7.
Existence
Correct Answer: The assertion that a world separate and distinct from our minds
that actually exists
Question 8.
Force
Correct Answer: Any of the four fundamental ways in which elementary particles
and bodies can influence each other.
,Question 9.
Hypothesis
Correct Answer: A tentative explanation for an observation, phenomenon, or
scientific problem that can be tested by further investigation
Question 10.
Reason
Correct Answer: The capacity for logical, rational, and analytic thought;
intelligence
Question 11.
Model
Correct Answer: A schematic description of a system, theory, or phenomenon
that accounts for its known or inferred properties and may be used for further
study of its characteristics
Question 12.
Strong Nuclear Interaction
Correct Answer: The interaction between nucleons that holds them together
Question 13.
Time Symmetry
Correct Answer: The laws of the universe do not change with time.
Question 14.
Sensory Data
Correct Answer: Knowledge obtained through seeing, hearing, touching, tasting,
and smelling
Question 15.
T/F: Protons and neutrons together form atomic nuclei.
Correct Answer: True
Question 16.
T/F: Occam's razor states that complex explanations are more likely to be true than simple
explanations.
Correct Answer: False
,Question 17.
T/F: Intuition is the act or faculty of knowing or sensing outside the five physical senses.
Correct Answer: True
Question 18.
T/F: A physical law, such as Newton's First Law of Motion, can never be proved wrong.
Correct Answer: False
Question 19.
T/F: The physical laws on Mars are slightly different than the laws on Earth due to the
differences in each planet's composition.
Correct Answer: False
Question 20.
A boat glides through the water on a lake at constant speed in a straight line.
Correct Answer: Newton's First Law
Question 21.
An airplane circles the airport at a constant speed while waiting to land.
Correct Answer: Newton's Second Law
Question 22.
A marathon runner begins running faster just before crossing the finish line.
Correct Answer: Newton's Second Law
Question 23.
Comparing the sizes of all forces that arise when a book sits on a table.
Correct Answer: Newton's Third Law
Question 24.
Describing the motion of a bench in the park.
Correct Answer: Newton's First Law
Question 25.
An accelerating bullet causing the recoil of a gun.
Correct Answer: Newton's Third Law
, Question 26.
A hot air balloon rising straight up at a constant speed.
Correct Answer: Newton's First Law
Question 27.
A submarine falling straight towards the ocean bottom at a constant speed.
Correct Answer: Newton's First Law
Question 28.
Comparing the forces on two boxers' gloves as they come in contact.
Correct Answer: Newton's Third Law
Question 29.
Newton's First Law (Law of Inertia)
Correct Answer: An object in motion (or at rest) will tend to stay in motion (or at
rest) until it is acted upon by an outside force.
Question 30.
Newton's Second Law
Correct Answer: F=MA (force = mass x acceleration)
Question 31.
Newton's Third Law
Correct Answer: For every action force there is an equal and opposite reaction
force
Question 32.
T/F: The laws of nature are treated differently for an object in uniform motion and an
object at rest.
Correct Answer: False
Question 33.
T/F: If an object changes its state of motion (i.e. its direction or speed) then it must be
accelerating.
Correct Answer: True
Question 34.
T/F: When an astronaut travels to the moon, his or her weight changes. Therefore, the
astronaut's mass must also change.
Correct Answer: False
ACTUAL QUESTIONS AND CORRECT ANSWERS
Question 1.
Causality
Correct Answer: Cause must always precede the effect.
Question 2.
Element
Correct Answer: A substance made of atoms, all of which contain the same
number of protons.
Question 3.
Position Symmetry
Correct Answer: The laws of the universe are not different at different locations.
Question 4.
Authority
Correct Answer: An accepted source of expert information or advice
Question 5.
Gravity
Correct Answer: The force that arises from the interaction of anything with mass
Question 6.
Law
Correct Answer: A well-tested theory, so firm as to be unquestioned by science
Question 7.
Existence
Correct Answer: The assertion that a world separate and distinct from our minds
that actually exists
Question 8.
Force
Correct Answer: Any of the four fundamental ways in which elementary particles
and bodies can influence each other.
,Question 9.
Hypothesis
Correct Answer: A tentative explanation for an observation, phenomenon, or
scientific problem that can be tested by further investigation
Question 10.
Reason
Correct Answer: The capacity for logical, rational, and analytic thought;
intelligence
Question 11.
Model
Correct Answer: A schematic description of a system, theory, or phenomenon
that accounts for its known or inferred properties and may be used for further
study of its characteristics
Question 12.
Strong Nuclear Interaction
Correct Answer: The interaction between nucleons that holds them together
Question 13.
Time Symmetry
Correct Answer: The laws of the universe do not change with time.
Question 14.
Sensory Data
Correct Answer: Knowledge obtained through seeing, hearing, touching, tasting,
and smelling
Question 15.
T/F: Protons and neutrons together form atomic nuclei.
Correct Answer: True
Question 16.
T/F: Occam's razor states that complex explanations are more likely to be true than simple
explanations.
Correct Answer: False
,Question 17.
T/F: Intuition is the act or faculty of knowing or sensing outside the five physical senses.
Correct Answer: True
Question 18.
T/F: A physical law, such as Newton's First Law of Motion, can never be proved wrong.
Correct Answer: False
Question 19.
T/F: The physical laws on Mars are slightly different than the laws on Earth due to the
differences in each planet's composition.
Correct Answer: False
Question 20.
A boat glides through the water on a lake at constant speed in a straight line.
Correct Answer: Newton's First Law
Question 21.
An airplane circles the airport at a constant speed while waiting to land.
Correct Answer: Newton's Second Law
Question 22.
A marathon runner begins running faster just before crossing the finish line.
Correct Answer: Newton's Second Law
Question 23.
Comparing the sizes of all forces that arise when a book sits on a table.
Correct Answer: Newton's Third Law
Question 24.
Describing the motion of a bench in the park.
Correct Answer: Newton's First Law
Question 25.
An accelerating bullet causing the recoil of a gun.
Correct Answer: Newton's Third Law
, Question 26.
A hot air balloon rising straight up at a constant speed.
Correct Answer: Newton's First Law
Question 27.
A submarine falling straight towards the ocean bottom at a constant speed.
Correct Answer: Newton's First Law
Question 28.
Comparing the forces on two boxers' gloves as they come in contact.
Correct Answer: Newton's Third Law
Question 29.
Newton's First Law (Law of Inertia)
Correct Answer: An object in motion (or at rest) will tend to stay in motion (or at
rest) until it is acted upon by an outside force.
Question 30.
Newton's Second Law
Correct Answer: F=MA (force = mass x acceleration)
Question 31.
Newton's Third Law
Correct Answer: For every action force there is an equal and opposite reaction
force
Question 32.
T/F: The laws of nature are treated differently for an object in uniform motion and an
object at rest.
Correct Answer: False
Question 33.
T/F: If an object changes its state of motion (i.e. its direction or speed) then it must be
accelerating.
Correct Answer: True
Question 34.
T/F: When an astronaut travels to the moon, his or her weight changes. Therefore, the
astronaut's mass must also change.
Correct Answer: False
