Introduction to Physics (Ch. 1.1 - 1.8) Flashcards

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1
Q

SI units

A
  • units of meters, kilograms, and seconds
  • also known as mks system
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2
Q

peta- prefix

A
  • 1015
  • P
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3
Q

tera- prefix

A
  • 1012
  • T
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4
Q

giga- prefix

A
  • 109
  • G
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5
Q

mega- prefix

A
  • 106
  • M
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6
Q

kilo- prefix

A
  • 103
  • k
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7
Q

hecto- prefix

A
  • 102
  • h
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8
Q

deka- prefix

A
  • 101
  • da
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9
Q

deci- prefix

A
  • 10-1
  • d
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10
Q

centi- prefix

A
  • 10-2
  • c
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11
Q

milli- prefix

A
  • 10-3
  • m
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12
Q

micro- prefix

A
  • 10-6
  • μ
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13
Q

nano- prefix

A
  • 10-9
  • n
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14
Q

pico- prefix

A
  • 10-12
  • p
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15
Q

femto- prefix

A
  • 10-15
  • f
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16
Q

Significant figures rules

A
  1. non-zero digits are always significant
  2. any zeros between two significant digits are significant
  3. a final zero or trailing zeros in the decimal portion ONLY are significant
17
Q

Significant figures when multiplying or dividing

A
  • The # of sig figs is equal to the # of sig figs in the least accurately known quantity
18
Q

Significant figures when adding or subtracting

A
  • The # of sig figs is equal to the smallest # of sig figs in any of the individual terms