SCMH 1010 EXAM 1 VOGEL UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Question 1
Where are wind and solar energy abundant?
Correct Answer
Wind = on the coast of the US or in the ocean
Solar = southwest of the US
Question 2
What are some insulators and some conductors?
Correct Answer
Conductor = metals and silicon at higher temps
conductors help pass electricity through a circuit with lower resistance the better
metal you use such as gold
Insulator = rubber
usually wrapped around a conductor in order to prevent heat or electricity from
escaping the circuit
Page 1 of 26
,Question 3
What is entropy? Be able to evaluate the relative entropies of different phases (gas,
liquid,
solid) of water. (E.g., Which has the highest vs. lowest.)
Correct Answer
a thermodynamic quantity representing the unavailability of a system's thermal
energy for conversion into mechanical work, often interpreted as the degree of
disorder or randomness in the system
Gas = highest entropy
Liquids = middle entropy
Solids = lowest entropy
Question 4
What is the difference between the Ptolemaic (geocentric) and the Copernican
(heliocentric) systems? What evidence finally, validated the Copernican system?
Correct Answer
The Ptolemaic System:
said the sun and planets rotated around the Earth as the Earth was at the center of
the solar system.
The Copernican system:
is the correct system and what we use today. It states that the sun is at the center of
the solar system and the planets rotate around it. This was proven true when Galileo
watched the position of Venus and how it changed phases throughout the year.
Question 5
What were the scientific contributions of Tycho Brahe and Johannes Kepler?
Correct Answer
The two were astronomers that developed planetary motion and determined that
the planets orbit around the sun.
Page 2 of 26
, Question 6
What is an example of how energy gets transferred from one form to another?
Correct Answer
Heat Transfer = Heat is the transfer of energy from a warmer object to a cooler
object.
Question 7
How is momentum different than velocity? How does mass affect inertia?
Correct Answer
An external force is always required to change the velocity, but momentum can be
changed by changing mass.
Heavier objects require more force to move from rest or stop when in motion,
meaning there will be no change in inertia unless a force is acted upon changing
the object's current velocity.
Question 8
What is heat capacity?
Correct Answer
A physical property of matter, defined as the amount of heat to be supplied to a
given mass of a material to produce a unit change in its temperature
Question 9
What are the differences between constructive and destructive interference?
Correct Answer
Constructive Interference: when two waves are at their peak with each other adding
to the overall wave size by combining together
Destructive Interference: when two waves are not both at their peak, canceling out
each other
Page 3 of 26
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Question 1
Where are wind and solar energy abundant?
Correct Answer
Wind = on the coast of the US or in the ocean
Solar = southwest of the US
Question 2
What are some insulators and some conductors?
Correct Answer
Conductor = metals and silicon at higher temps
conductors help pass electricity through a circuit with lower resistance the better
metal you use such as gold
Insulator = rubber
usually wrapped around a conductor in order to prevent heat or electricity from
escaping the circuit
Page 1 of 26
,Question 3
What is entropy? Be able to evaluate the relative entropies of different phases (gas,
liquid,
solid) of water. (E.g., Which has the highest vs. lowest.)
Correct Answer
a thermodynamic quantity representing the unavailability of a system's thermal
energy for conversion into mechanical work, often interpreted as the degree of
disorder or randomness in the system
Gas = highest entropy
Liquids = middle entropy
Solids = lowest entropy
Question 4
What is the difference between the Ptolemaic (geocentric) and the Copernican
(heliocentric) systems? What evidence finally, validated the Copernican system?
Correct Answer
The Ptolemaic System:
said the sun and planets rotated around the Earth as the Earth was at the center of
the solar system.
The Copernican system:
is the correct system and what we use today. It states that the sun is at the center of
the solar system and the planets rotate around it. This was proven true when Galileo
watched the position of Venus and how it changed phases throughout the year.
Question 5
What were the scientific contributions of Tycho Brahe and Johannes Kepler?
Correct Answer
The two were astronomers that developed planetary motion and determined that
the planets orbit around the sun.
Page 2 of 26
, Question 6
What is an example of how energy gets transferred from one form to another?
Correct Answer
Heat Transfer = Heat is the transfer of energy from a warmer object to a cooler
object.
Question 7
How is momentum different than velocity? How does mass affect inertia?
Correct Answer
An external force is always required to change the velocity, but momentum can be
changed by changing mass.
Heavier objects require more force to move from rest or stop when in motion,
meaning there will be no change in inertia unless a force is acted upon changing
the object's current velocity.
Question 8
What is heat capacity?
Correct Answer
A physical property of matter, defined as the amount of heat to be supplied to a
given mass of a material to produce a unit change in its temperature
Question 9
What are the differences between constructive and destructive interference?
Correct Answer
Constructive Interference: when two waves are at their peak with each other adding
to the overall wave size by combining together
Destructive Interference: when two waves are not both at their peak, canceling out
each other
Page 3 of 26
