Ch 1 Physics

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Physics

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37 Terms

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SI System
a standard system of units for the fundamental quantities of science
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meter
the distance light travels in a vacuum during 1/299 792 458 of a second; SI unit for length
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kilogram
mass of a platinum-indium alloy cylinder kept in france; SI unit for mass
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second
9 192 631 700 times the period of oscillation of radiation from the cesium atom; SI unit for time
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atto- / 10^-18
a
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femto- / 10^-15
f
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pico- / 10^-12
p
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nano- / 10^-9
n
9
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micro- / 10^-6
μ
10
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milli- / 10^-3
m
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centi- / 10^-2
c
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deci- / 10^-1
d
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deka- / 10^1
da
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kilo- / 10^3
k
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mega- / 10^6
M
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giga- / 10^9
G
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tera- / 10^12
T
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peta- / 10^15
P
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exa- / 10^18
E
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up, down, strange, charm, bottom, and top
possibilities of a quark
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2 up quarks and 1 down quark
quarks that compose a proton
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2 down quarks and 1 up quark
quarks that compose a neutron
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dimension
physical nature of a quantity (different units of the same metric mass, length, or time)
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dimensional analysis
treats dimensions like algebraic quantities to help derive or check equations
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order of magnitude
approximate value within a factor of 10 denoted with ~
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cartesian coordinate system
a coordinate system consisting of 2 axis, x and y, that span from -∞ to ∞ used to describe the position of a point using (x,y) distance removed from the reference point, the origin
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plane polar coordinates
a distance r from the origin and angle θ from the x-axis where counterclockwise is the positive direction
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pythagorean theorem
r^2 = x^2 + y^2
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cosθ
x/r
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sinθ
y/r
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tanθ
y/x
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L (length)
What unit/dimensions is displacement?
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L/T
What are the dimensions of Velocity?
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L
What is the dimension of position?
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L^2
What are the dimensions of area?
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L^3
What are the dimensions of volume?
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L/T^2
What are the dimensions of acceleration?