What is the difference between the Ptolemaic (geocentric) and the Copernican (heliocentric) systems? What evidence finally, validated the Copernican system? - Answer The Ptolemaic System:
said the sun and planets rotated around the Earth as the Earth was at the center of the solar system.
T...
SCMH 1010 Latest Exam 1 Vogel
Questions With Verified Updated
Answers.
What is the difference between the Ptolemaic (geocentric) and the Copernican (heliocentric) systems?
What evidence finally, validated the Copernican system? - 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.
What were the scientific contributions of Tycho Brahe and Johannes Kepler? - Answer The two were
astronomers that developed planetary motion and determined that the planets orbit around the sun.
What was the scientific contribution of Galileo Galilei? - Answer Galileo created the scientific method
as well as make many advancements towards math and astrology through the use of the telescope.
What was the scientific contribution of Isaac Newton? - Answer Newton created significant work
towards forces and math, but his greatest accomplishment is the development of the universal law of
gravity.
Be able to visually identify the graphical, physical, and mathematical relationships between distance,
velocity, and acceleration for falling or descending objects? - Answer Distance = m, cm, mm
or how far an object has traveled
Velocity = m/s
or the distance an object has traveled within a certain time
, Acceleration = m/s2
or the change in velocity within a given time
What is a vector and what are the two components of a vector? - Answer A vector is an object that has
both a magnitude (length) and a direction.
What do the Newtonian laws say about what will happen to an object in motion or an object not in
motion (Newton's 1st Law)? - Answer If a body is at rest or moving at a constant speed in a straight
line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a
force.
What are the units for force, velocity, and acceleration? - Answer Force = mass x acceleration (N)
Velocity = distance/time (m/s)
Acceleration = change in velocity/change in time (m/s2)
How is momentum different than velocity? How does mass affect inertia? - 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.
Be able to interpret Netwon's gravitational equation. - Answer Newton's law of universal gravitation is
usually stated as that every particle attracts every other particle in the universe with a force that is
directly proportional to the product of their masses and inversely proportional to the square of the
distance between their centers.
What are the units for work, energy, and power? How is each of them different mathematically? -
Answer Work = Force x Displacement (j or joule)
the energy transferred from one object acting upon another
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