Physical Science 100 BYU Final Exam Comprehensive
Review Verified by Expert
Newton's 1st Law - Answer An object at rest will stay at rest unless acted upon by an unbalanced force
Newton's 2nd Law - Answer Force = Mass * Acceleration
Newton's 3rd Law - Answer All forces result from interactions between pairs of objects, each exerting
and equal and opposite force on the other
Existence - Answer the fact or state of having actual or real being
Causality - Answer cause must always precede the effect
Position Symmetry - Answer the laws of the universe are the same everywhere
Principle of Non-contradiction - Answer of two contradictory propositions, both cannot be true
Time Symmetry - Answer the laws of the universe do not change with time
Occam's razor - Answer the simplest explanation is most likely the right
Strong Nuclear Force - Answer Strongest, shortest range, holds the nucleus of an atom together
Electromagnetic Force - Answer 2nd strongest, it is the interactions between charged particles
Acceleration - Answer Any change in speed or direction
If there is acceleration - Answer there must be a force involved
,Uniform motion - Answer object is at rest or is moving at a constant speed in a straight line. All forces
are balanced. (Elevator)
Weak Nuclear forces - Answer 3rd strongest, do not need to know anything else
Gravity - Answer Weakest force, longest range. interactions between anything with mass.
Newton's 3rd Law Collisions- A fly and the semi truck experience the ____ amount of forces - Answer
Same
Newton's 3rd Law Collisions- A fly and the semi truck experience _____ accelerations - Answer different,
fly has a large acceleration while truck has a lower acceleration
All objects experience the same acceleration due to - Answer gravity, but only in the absence of air
friction
The force of gravity depends on - Answer the mass of the 2 objects and how far apart they are
Heavier objects experience a - Answer greater gravitational force, but the same acceleration
Force is - Answer proportional to mass
Universal Law of Gravity - Answer Force=GmM/d^2
Atoms are made up of - Answer protons, neutrons, and electrons
In a transfer of charge only - Answer electrons move
Electromagnetic force deals with - Answer anything outside of the nucleus
, The force between two charges depends on - Answer the size of the charge and the distance between
them
Electrical potential energy - Answer energy associated with the relative position of charged objects
Like charges have the most potential energy when - Answer they are close together. High potential to
separate
Opposite charges have the most potential energy when - Answer they are far apart. There is the
potential to come together
Pressure in a fluid increases with - Answer depth
Buoyant force - Answer The upward buoyant force is equal to the weight of the displaced fluid
Buoyant force depends on - Answer the volume of the object and the density of fluid
For an object floating on the surface the buoyant and gravitational forces are - Answer balanced
Buoyant force is caused by - Answer greater pressure at greater depth
Special Theory of Relativity - Answer The speed of light in a vacuum is constant for all observes in all
reference frames regardless of the speed of the device emitting the light of the speed of the observer
As you approach the speed of light three things happen - Answer Things become short, mass increases,
time slows down. Short, fat, slow
Conservation laws - Answer conserved to say that it is the same at the beginning and the end
Review Verified by Expert
Newton's 1st Law - Answer An object at rest will stay at rest unless acted upon by an unbalanced force
Newton's 2nd Law - Answer Force = Mass * Acceleration
Newton's 3rd Law - Answer All forces result from interactions between pairs of objects, each exerting
and equal and opposite force on the other
Existence - Answer the fact or state of having actual or real being
Causality - Answer cause must always precede the effect
Position Symmetry - Answer the laws of the universe are the same everywhere
Principle of Non-contradiction - Answer of two contradictory propositions, both cannot be true
Time Symmetry - Answer the laws of the universe do not change with time
Occam's razor - Answer the simplest explanation is most likely the right
Strong Nuclear Force - Answer Strongest, shortest range, holds the nucleus of an atom together
Electromagnetic Force - Answer 2nd strongest, it is the interactions between charged particles
Acceleration - Answer Any change in speed or direction
If there is acceleration - Answer there must be a force involved
,Uniform motion - Answer object is at rest or is moving at a constant speed in a straight line. All forces
are balanced. (Elevator)
Weak Nuclear forces - Answer 3rd strongest, do not need to know anything else
Gravity - Answer Weakest force, longest range. interactions between anything with mass.
Newton's 3rd Law Collisions- A fly and the semi truck experience the ____ amount of forces - Answer
Same
Newton's 3rd Law Collisions- A fly and the semi truck experience _____ accelerations - Answer different,
fly has a large acceleration while truck has a lower acceleration
All objects experience the same acceleration due to - Answer gravity, but only in the absence of air
friction
The force of gravity depends on - Answer the mass of the 2 objects and how far apart they are
Heavier objects experience a - Answer greater gravitational force, but the same acceleration
Force is - Answer proportional to mass
Universal Law of Gravity - Answer Force=GmM/d^2
Atoms are made up of - Answer protons, neutrons, and electrons
In a transfer of charge only - Answer electrons move
Electromagnetic force deals with - Answer anything outside of the nucleus
, The force between two charges depends on - Answer the size of the charge and the distance between
them
Electrical potential energy - Answer energy associated with the relative position of charged objects
Like charges have the most potential energy when - Answer they are close together. High potential to
separate
Opposite charges have the most potential energy when - Answer they are far apart. There is the
potential to come together
Pressure in a fluid increases with - Answer depth
Buoyant force - Answer The upward buoyant force is equal to the weight of the displaced fluid
Buoyant force depends on - Answer the volume of the object and the density of fluid
For an object floating on the surface the buoyant and gravitational forces are - Answer balanced
Buoyant force is caused by - Answer greater pressure at greater depth
Special Theory of Relativity - Answer The speed of light in a vacuum is constant for all observes in all
reference frames regardless of the speed of the device emitting the light of the speed of the observer
As you approach the speed of light three things happen - Answer Things become short, mass increases,
time slows down. Short, fat, slow
Conservation laws - Answer conserved to say that it is the same at the beginning and the end
