PHY 101: Chapter 1
18 Cards in this Set
| Front | Back |
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length
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the distance light travels in a given amount of time
L
meter = m
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mass
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M
kilogram= kg
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time
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the oscillation of radiation from a cesium atom
T
seconds = s
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femto
|
10^-15
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pico
|
10^-12
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micro
|
10^-6
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mili
|
10^-3
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kilo
|
10^3
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mega
|
10^6
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gig
|
10^10
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sig fig rules
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-multiplying and dividing: same # of sf as least accurate number in problem
-adding and subtraction: the # of decimal pts should be the same and the smaller one in problem
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types of coordinate systems
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1. cartesian
2. plane polar
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cartesian
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x,y axis
given pts
given x and y values
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plane polar
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origin and reference pt noted
pt is distance "r" to origin
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sin
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opp/ hyp
y/r
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cos
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adj / hyp
x/ r
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tan
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opp/ adj
y/x
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Pythagorean therom
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x2+ y2 = r2
only right triangles
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PHY 101: Chapter 1