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Physics Chapter 1


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to tell or describe beforehand
laws of motion
Issac Newton (famous 1)
when something appears to move based on the angle it's viewed at.
"heavier objects fall faster" (person)
quadratic relationship
exists when one variable depends on the square of another
Michael Ferraday
created moving electromagnetic field to generate electricity (person)
dependent variable
variable measured in an experiment
scientific law
describes a rule of nature and is usually a expressed as mathematical formula.
study of energy transformations of a system
the equation used to describe an inverse relationship
light behaves as particles
Issac Newton (said what about light?)
2nd law of motion
mass x acceleration=force (f=ma)
Rudolf Claussius
formulated the 2nd law of thermodynamics (also introduced entropy) (person)
angular distance north or south from the earth's equator measured through 90°
Special Theory of Relativity
when you approach light speed, both time and space are distorted
randomness or disorder of a system
linear relationship
when the line of best fit graph is a straight line for describing a relationship
a diagram the represents the variation of a variable in comparison w/ that of 1 or more other variables
1st law of motion
object in motion, stays in motion
any factor that might affect the behavior of an experimental set up
colors (in order, 1st letter only, no spaces) that make up white light
formal statement of equivalence of mathematical expressions
SI unit for time
SI unit for amount of a substance
Ernest Rutherford
found nucleus (person)
tangent of the angle made by a straight line w/ the x-axis (rise/run)
weak forces
holds atoms together (type of force)
nonlinear relationship
relationship when the line of best fit is not a straight line
quantum mechanics
describes that matter has wave-like properties
Max Plank
described the rules for the quantum theory (person)
James Clark Maxwell
continued Ferraday's experiments (person)
Henrico Fermi
used a neutron like a bullet to split an atom (person)
Murray Gell-Mann
discovered the 3 quarks
dimensional analysis
a calculation method where you treat the units in a problem as algebraic properties
cool a substance so that resistance is zero and a current can flow through it without loosing energy
the study of the physical world; energy, matter, and how they are related
line of best fit
mark on a graph as close to all the data pts. as possible
SI unit for mass
Max Bourn
if matter is a wave, what is waving? (probability of locating an atom at any given pt.)
a comparison between an unknown quantity and a standard
3rd law of motion
for every action, there is an equal and opposite reaction
scientific method
process that uses strict guidelines to ensure careful & systematic collection, organization, & analysis of data
Madame Curie
1st to experiment w/ radium (person)
student of Rutherford, found neutron & proton in nucleus (person)
Erwin Shrodenger
because light behaves like a wave, created an equation (person)
plane curve created by moving so that its distance from a fixed pt. is equal to its distance from a fixed line
4 fundamental forces
strong force, weak force, gravitation, electromagnetic (types of....)
Albert Einstein
created the theory of special relativity
1/2 of smallest division
describes how precise an instrument is
angular distance or portion of the earth's equator intersected between the median of a given location & the prime meridian
an unequal distribution of charge is produced by electrons in motion (1 of 4 forces)
degree of exactness, affected by equipment, and technique (sig. figs.)
SI unit for luminous intensity
quantum theory
energy occurs in packets
direct relationship
a change in 1 variable causes the same change in the other variable
Michael Ferraday (worked w/ what subject?)
accepted value vs. what you got
a statement that deals w/ very specific worldly phenomenon
Albert Einstein
light behaves like both waves and particles(person)
universal gravitation
Issac Newton (deals w/ earth)
tested Aristotle's "heavier objects fall faster" (also developed a telescope and said planets revolves around the sun) (person)
scientific notation
uses #'s 1-10 and multiplies by an appropriate power of 10
plane curve created by a point moving so that the distance from two fixed pts. is constant
SI unit for electric current
scientific theory
Has lots of experiments completed to support your data, wider scope/broader topic
said light behaves like a wave (person)
1st law of thermodynamics
energy can't be created or destroyed, only changed from one form to another
the equation used to describe a quadratic relationship
fundamental constituents of subatomic particles
2nd law of thermodynamics
entropy of the universe is always increasing
SI unit for temperature
independent variable
variable in an experiment that is manipulated
SI unit for length
system of postulates, data, and inferences presented as a mathematical description of an entity
the equation used to describe a linear relationship

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