|
Hint
|
|
Answer
|
|
10^-30 grams
|
|
quectogram
|
|
10^-27 grams
|
|
rontogram
|
|
equivalent to unified atomic mass unit: 1/12 the mass of a carbon-12 atom
|
|
dalton
|
|
10^-24 grams
|
|
yoctogram
|
|
10^-21 grams
|
|
zeptogram
|
|
10^-18 grams
|
|
attogram
|
|
10^-15 grams
|
|
femtogram
|
|
10^-12 grams
|
|
picogram
|
|
10^-9 grams
|
|
nanogram
|
|
10^-6 grams
|
|
microgram
|
|
21.76 micrograms
|
|
Planck mass
|
|
10^-3 grams
|
|
milligram
|
|
10^-2 grams
|
|
centigram
|
|
7,000 of this unit equal one avoirdupois pound, used to measure the weight of bullets
|
|
grain
|
|
10^-1 grams
|
|
decigram
|
|
200 milligrams
|
|
carat
|
|
720 milligrams
|
|
obol
|
|
mass of a small pen cap or paper clip is about this much mass
|
|
gram
|
|
1.555 grams
|
|
pennyweight
|
|
20 grains
|
|
scruple
|
|
1/256 of a pound
|
|
dram
|
|
not the UAE currency in this case: historic Islamic unit of mass: 2.975 to 3 grams
|
|
dirham
|
|
3 3/4 gram
|
|
mace
|
|
4.265 grams
|
|
zolotnik
|
|
10 grams
|
|
decagram
|
|
11 grams
|
|
shekel
|
|
180 grains
|
|
tola
|
|
14 to 18 grams
|
|
lot
|
|
1/16 of an avoirdupois pound
|
|
ounce (avoirdupois)
|
|
1.097 standard ounces
|
|
ounce (Troy)
|
|
31.1 Troy ounces
|
|
ounce (french traditional)
|
|
Chinese ounce: 50 grams
|
|
tael
|
|
100 grams
|
|
hectogram
|
|
102 grams
|
|
newton
|
|
328.9 grams: origin of lb symbol for pound
|
|
libra
|
|
12 Troy ounces
|
|
pound (Troy)
|
|
Russian pound: 0.9 pounds
|
|
funt
|
|
570 grams: 50 shekels
|
|
mina
|
|
16 ounces
|
|
pound (avoirdupois)
|
|
comes from Libra unit
|
|
pound (metric)
|
|
500 grams: 604.8 grams in Hong Kong: 600 grams in other regions
|
|
catty
|
|
1,000 grams: si base unit of mass
|
|
kilogram
|
|
2.8 pounds
|
|
oka
|
|
14 pounds
|
|
stone
|
|
28 pounds
|
|
quarter
|
|
36.11 pounds
|
|
pood
|
|
25 pounds
|
|
arroba
|
|
32.174 pounds
|
|
slug
|
|
29 kg
|
|
talent
|
|
100 pounds
|
|
cental
|
|
100 pounds in us: 112 pounds in uk
|
|
hundredweight
|
|
100 to 120 catties
|
|
picul,shi,Dan,tam
|
|
100 kilograms
|
|
quintal
|
|
2,000 pounds
|
|
short ton
|
|
1,000,000 grams
|
|
megagram (metric ton)
|
|
2,240 pounds
|
|
long ton
|
|
1 billion grams
|
|
gigagram
|
|
1 trillion grams
|
|
teragram
|
|
1 quadrillion grams
|
|
petagram
|
|
1 quintillion grams
|
|
exagram
|
|
1 sextillion grams
|
|
zettagram
|
|
1 septillion grams
|
|
yottagram
|
|
1 octillion grams
|
|
ronnagram
|
|
mass of the earth:5.9722 ronnagrams: used for mass of terrestrial planets,super earth exoplanets and objects with less mass then earth
|
|
earth mass
|
|
1 nonillion grams
|
|
quettagram
|
|
mass of jupiter: 1.89813 quettagrams: used for mass of gas giants and brown dwarfs
|
|
Jupiter mass
|
|
mass of the sun: 1.989x10^30 kilograms
|
|
solar mass
|
|
1.5x10^56 or 1.5x10^57 with dark matter
|
|
estimated mass of the observable universe
|
|
10^-21 joules
|
|
zeptojoule
|
|
energy gained by an electron when it moves an electrical potential difference of one volt
|
|
electronvolt
|
|
1,000 electronvolts
|
|
kiloelectronvolt
|
|
1 million electronvolts
|
|
megaelectronvolt
|
|
1 billion electronvolts
|
|
gigaelectronvolt
|
|
1 trillion electronvolts
|
|
teraelectronvolt
|
|
10^-18 joules
|
|
attojoule
|
|
10^-15 joules
|
|
femtojoule
|
|
10^-12 joules
|
|
picojoule
|
|
10^-9 joules
|
|
nanojoule
|
|
10^-6 joules
|
|
microjoule
|
|
10^-3 joules
|
|
millijoule
|
|
10^-2 joules
|
|
centijoule
|
|
10^-1 joules
|
|
decijoule
|
|
si derived unit of energy
|
|
joule
|
|
10 joules
|
|
decajoule
|
|
100 joules
|
|
hectojoule
|
|
equivalent to one joule
|
|
watt-second
|
|
equivalent to one joule
|
|
newton meter
|
|
also a unit of torque
|
|
dyne centimeter
|
|
used in astrophysics
|
|
erg
|
|
in imperial system: 1.3558 joules
|
|
foot pound
|
|
also in imperial system
|
|
inch pound
|
|
in imperial system
|
|
ounce force
|
|
in automotive systems
|
|
pound force foot
|
|
unit of torque
|
|
pound force inch
|
|
in fps system
|
|
poundal foot
|
|
amount of energy needed raise the temperature of one gram of water by 1 degree celsius
|
|
calorie
|
|
what nutrition labels usually mean by calories: 1,000 calories
|
|
kilocalorie
|
|
used in chemistry and thermodynamics
|
|
thermochemical calorie
|
|
4.9002 joules
|
|
mean-calorie
|
|
4.1868 joules
|
|
international speed table calorie
|
|
often just called calorie
|
|
gram-calorie
|
|
amount of energy needed raise the temperature of one kilogram of water by 1 degree celsius
|
|
kilogram-calorie
|
|
over 4 million joules
|
|
thermie
|
|
155 joules
|
|
british thermal unit
|
|
1055.05585262 joules
|
|
British thermal unit (international table)
|
|
charging a phone for 10 seconds takes one of this unit
|
|
british thermal unit (as defined by the international organization of standardization)
|
|
used to standardize temperatures
|
|
British thermal unit (sharp)
|
|
used in chemical thermodynamics
|
|
British thermal unit (thermochemical)
|
|
used in natural gas utilities, 100,000 BTU's
|
|
therm (us)
|
|
used in european community
|
|
therm (ec)
|
|
3,600 watt seconds
|
|
watt-hour
|
|
1,000 watt hours
|
|
kilowatt hour
|
|
1,000,000 watt hours
|
|
megawatt hour
|
|
1 billion watt hours
|
|
gigawatt hour
|
|
3.3 quadrillion joules: 1 trillion watt hours
|
|
terawatt hour
|
|
1 quadrillion watt hours
|
|
petawatt hour
|
|
1 quintillion watt hours
|
|
exawatt hour
|
|
1 sextillion watt hours
|
|
zettawatt hour
|
|
1 septillion watt hours
|
|
yottawatt hour
|
|
1 octillion watt hours
|
|
ronnawatt hour
|
|
1 nonillion watt hours
|
|
quettawatt hour
|
|
1,000 joules
|
|
kilojoule
|
|
1,000,000 joules
|
|
megajoule
|
|
1,000,000,000 joules
|
|
gigajoule
|
|
1 trillion joules
|
|
terajoule
|
|
1 quadrillion joules
|
|
petajoule
|
|
1 quintillion joules
|
|
exajoule
|
|
1 sextillion joules
|
|
zettajoule
|
|
1 septillion joules
|
|
yottajoule
|
|
6.1 gigajoules
|
|
barrel of oil equivalent
|
|
41.9 gigajoules
|
|
ton of oil equivalent
|
|
29.3 megajoules
|
|
kilogram of coal equivalent
|
|
29.3 gigajoules
|
|
ton of coal equivalent
|
|
9.8 kilowatt hours
|
|
cubic meter of natural gas
|
|
1 million BTU's
|
|
MBTU
|
|
1 quadrillion BTU's
|
|
Quad
|
|
1,000 quads
|
|
gigaton of TNT
|
|
st Helens eruption was one of this unit
|
|
megaton of TNT
|
|
101 joules
|
|
litre-atmosphere
|
|
2 billion joules
|
|
Planck energy
|
|
used in quantum mechanics
|
|
hartree
|
|
named after johannes rydberg
|
|
rydberg
|
|
2 rydbergs
|
|
atomic unit of energy
|
|
used to express wave number
|
|
inverse centimeter
|
|
1-5 gigajoules
|
|
energy of the lightning bolt
|
|
can reach up to 100 quadrillion joules
|
|
energy of a nuclear bomb
|
|
380 yottawatts
|
|
energy output of the sun per second
|
|
releases between 10^44 and 10^47 joules
|
|
energy of a gamma ray burst
|
|
100 quads
|
|
energy of a black hole merger
|
|
one tredicillion joules
|
|
energy of a supernova
|
|
radiation leftover from the big bang
|
|
energy of the cosmic microwave background
|
|
1.22 zettajoules
|
|
energy of the entire milky way
|
|
10 duodecillion joules
|
|
estimated total energy of the observable universe
|
|
10^-30 joules
|
|
quectojoule
|
|
10^-27 joules
|
|
rontojoule
|
|
10^-24 joules
|
|
yoctojoule
|
|
10^27 joules
|
|
ronnajoule
|
|
10^30 joules
|
|
quettajoule
|
|
energy per amount of substance
|
|
joule per mole
|
|
1,000 joules per mole
|
|
kilojoule per mole
|
|
used in food sciences
|
|
calorie per gram
|
|
in astrophysics
|
|
electronvolt per particle
|
|
solar radiation energy
|
|
langley
|
|
CTS system unit of energy
|
|
statcalorie
|
|
hp/h
|
|
horsepower hour
|
|
hp/s
|
|
horsepower second
|
|
9 joules
|
|
kilogram force meter
|
|
small mechanical energy unit
|
|
gram force centimeter
|
|
rare hybrid unit
|
|
pound force foot second
|
|
UK electricity unit
|
|
board of trade unit
|
|
slightly different from therm in us
|
|
therm (UK)
|
|
energy needed to raise one pound of water to 1 degree
|
|
centigrade heat unit
|
|
1.79x10^47 joules
|
|
solar mass energy equivalent
|
|
2.24x10^32 joules
|
|
gravitational binding energy of the earth
|
|
1 duovingillion joules
|
|
energy of cosmic inflation
|
|
1 sextillion electronvolts
|
|
zettaelectronvolt
|
|
how long it takes light to travel one Planck length
|
|
Planck Time
|
|
10^-30 seconds: when light crosses a proton it takes 1 trillion of this unit
|
|
quectosecond
|
|
10^-27 seconds: 300 of this unit of the life time of w and z bosons
|
|
rontosecond
|
|
10^-24 seconds
|
|
yoctosecond
|
|
amount of time light takes to travel one fermi
|
|
jiffy (physics)
|
|
10^-21 seconds
|
|
zeptosecond
|
|
10^-18 seconds
|
|
attosecond
|
|
derived from atomic theory of hydrogen
|
|
atomic time
|
|
10^-15 seconds
|
|
femtosecond
|
|
100 femtoseconds: used to distinguish ribosomes
|
|
svedberg
|
|
10^-12 seconds
|
|
picosecond
|
|
10^-9 seconds
|
|
nanosecond
|
|
10 nanoseconds
|
|
shake
|
|
10^-6 seconds
|
|
microsecond
|
|
10^-3 seconds
|
|
millisecond
|
|
10^-2 seconds
|
|
centisecond
|
|
period of an alternating current power cycle
|
|
jiffy (electronics)
|
|
10^-1 seconds
|
|
decisecond
|
|
si base unit of time
|
|
second
|
|
10 seconds
|
|
decasecond
|
|
6 decaseconds: 60 seconds
|
|
minute
|
|
1/1000th of a day
|
|
milliday
|
|
100 seconds
|
|
hectosecond
|
|
90 seconds: used before the invention of the mechanical clock
|
|
moment
|
|
1/100th of a day
|
|
centiday
|
|
1000 seconds
|
|
kilosecond
|
|
3600 minute
|
|
hour
|
|
1/10th of a day
|
|
deciday
|
|
24 hours
|
|
day
|
|
10 days
|
|
decaday
|
|
1 million seconds: 11.6 days
|
|
megasecond
|
|
2 weeks
|
|
fortnight
|
|
27 hours, 4 hours, 48 minutes: time it takes for the moon to cycle through its phases
|
|
lunar month
|
|
1/12 of a year: 28-31 days
|
|
month
|
|
40 days
|
|
quarantine
|
|
100 days
|
|
hectoday
|
|
6 months/18 weeks: division of academic year
|
|
semester
|
|
based off lunar calendar
|
|
lunar year
|
|
12 months: 365/366 days: time it takes for earth to orbit the sun
|
|
year
|
|
exactly 365 days
|
|
common year
|
|
time may vary
|
|
tropical year
|
|
time may vary
|
|
gregorian year
|
|
time it takes earth to orbit the sun in relation to other stars: 365 days, 6 hours, 9 minutes, 9.7635456 seconds
|
|
sidereal year
|
|
366 days: happens every 4 years
|
|
leap year
|
|
4 years
|
|
olympiad
|
|
used for interval in Roman times, 5 years
|
|
lustrum
|
|
10 years
|
|
decade
|
|
15 years
|
|
indiction
|
|
31.7 years
|
|
gigasecond
|
|
50 years
|
|
jubilee
|
|
100 years
|
|
century
|
|
1,000 years
|
|
millennium
|
|
time may vary, smallest unit of geological time
|
|
age
|
|
1 trillion seconds: 31,709 years
|
|
terasecond
|
|
1 million years
|
|
megaannum/megayear
|
|
31.7 million years: 1 quintillion years
|
|
petasecond
|
|
225-250 million years
|
|
galactic year
|
|
time may vary: exponentially increasing time
|
|
cosmological decade
|
|
time may vary: largest unit of geological time
|
|
eon
|
|
4.32 billion years
|
|
kalpa
|
|
31.7 billion years
|
|
exasecond
|
|
31.7 trillion years: brahma's lifespan in hindu mythology was 9.85 of this unit
|
|
zettasecond
|
|
10^24 seconds
|
|
yottasecond
|
|
10^27 seconds
|
|
ronnasecond
|
|
31.7 sextillion years
|
|
quettasecond
|
|
100 quintillionth the length of a proton
|
|
Planck length
|
|
10^-24 meters
|
|
yoctometer
|
|
10^-21 meters
|
|
zeptometer
|
|
10^-18 meters
|
|
attometer
|
|
10^-15 meters
|
|
femtometer
|
|
1.0021x10^-13 meters
|
|
x-unit (siegbahn)
|
|
5.2917721092(17)x10^-11 meters: distance between the nucleus and electron of a hydrogen atom
|
|
Bohr radius
|
|
10 billionth of a meter
|
|
angstrom
|
|
10^-9 meters
|
|
nanometer
|
|
10^-6 meters
|
|
micrometer
|
|
1 1/1440 of an inch
|
|
twip
|
|
1/1000th of a inch
|
|
mil;thou
|
|
0.3515 millimeters
|
|
point (American)
|
|
1/72.27 inches
|
|
point (TeX)
|
|
1/72 of an inch
|
|
point (postscript)
|
|
5/133 of a cm
|
|
point (didot)
|
|
1/200th of an inch
|
|
mickey
|
|
1/3 millimeter
|
|
french gauge
|
|
ln symbol
|
|
line
|
|
1/8 of an inch
|
|
soot
|
|
1/3 inch
|
|
barleycorn
|
|
7/8 of an inch
|
|
finger
|
|
1/12 of a foot
|
|
inch
|
|
2 inches
|
|
stick
|
|
2 1/4 inch
|
|
nail (cloth)
|
|
3 inches
|
|
palm
|
|
4 inches
|
|
hand
|
|
4 1/2 inch: has no legal status
|
|
finger (cloth)
|
|
9 inches
|
|
span
|
|
0.3048 meters
|
|
foot (Benoit)
|
|
1.033 English feet
|
|
foot (cape)
|
|
0.3047972654 meters
|
|
foot (clarke's)
|
|
0.304799514 meters
|
|
foot (Indian)
|
|
0.3 meters
|
|
foot (metric)
|
|
1/3 of a meter
|
|
foot (metric, mesures usuelles)
|
|
12 inches
|
|
foot (international)
|
|
0.30479947 meters
|
|
foot (sear's)
|
|
1200/3997 meters
|
|
foot (us survey)
|
|
18 inches: fingers to elbow
|
|
cubit
|
|
2.5 feet
|
|
pace
|
|
3 feet
|
|
yard
|
|
si base unit of length: in 1/300,000,000 of a second light travels 1 meter
|
|
meter
|
|
10^-30 meters
|
|
quectometer
|
|
10^-27 meters
|
|
rontometer
|
|
10^-12 meters
|
|
picometer
|
|
10^-3 meters
|
|
millimeter
|
|
10^-2 meters
|
|
centimeter
|
|
10^-1 meters
|
|
decimeter
|
|
1.83 meters
|
|
fathom
|
|
10 meters
|
|
decameter
|
|
100 meters
|
|
hectometer
|
|
1,000 meters
|
|
kilometer
|
|
1 million meters
|
|
megameter
|
|
1 billion meters
|
|
gigameter
|
|
1 trillion meters
|
|
terameter
|
|
1 quadrillion meters
|
|
petameter
|
|
1 quintillion meters
|
|
exameter
|
|
1 sextillion meters
|
|
zettameter
|
|
1 septillion meters
|
|
yottameter
|
|
1 octillion meters
|
|
ronnameter
|
|
1 nonillion meters
|
|
quettameter
|
|
45 inches
|
|
ell
|
|
16.5 feet
|
|
rod
|
|
20 feet
|
|
rope
|
|
66 feet
|
|
chain
|
|
185.2 meters
|
|
cable length (international)
|
|
608 feet
|
|
cable length (imperial)
|
|
660 feet
|
|
furlong
|
|
720 feet
|
|
cable length (us)
|
|
5,280 feet
|
|
mile (international)
|
|
5,280 us survey feet
|
|
mile (us survey)
|
|
6,000 feet
|
|
mile (tactical or data)
|
|
6,082 feet
|
|
mile (geographical)
|
|
6,087 feet
|
|
mile (telegraph)
|
|
1,852 meters
|
|
nautical mile (international)
|
|
6,080 feet
|
|
nautical mile (admiralty)
|
|
1,854.248 meters
|
|
nautical mile (us pre 1954)
|
|
4,028 meters: 1 hour walk
|
|
league
|
|
10,000 meters
|
|
mil (sweden and norway)
|
|
299,792,458 meters, distance light travels in one second
|
|
light second
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distance light travels in one minute: 17,987,547,480 meters
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light minute
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1 au= distance between earth and the sun
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astronomical unit
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distance light travels in one hour
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light hour
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1 trillion meters (same as terameter in length)
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spat
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distance light travels in one day: voyager 1 will be about this distance from earth in late 2026
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light day
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distance light travels in one month (rarely used)
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light month
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distance light travels in one year
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light year
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3.26 light years
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parsec
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1,000 parsecs
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kilopasecs
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1 million parsecs
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megaparsec
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1 billion parsecs
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gigaparsec
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10^20 meters
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galaxy scale
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10^23 meters
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cluster scale
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10^24 meters
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supercluster scale
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4.4x10^26 meters
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cosmic horizon
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length of entire observable universe
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observable universe
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10^30 meters
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multiverse scale
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no/unknown length
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hypothetical mega universe
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10^33 meters
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megaverse
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10^36 meters
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gigaverse
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contains many gigaverses
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teraverse
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multidimensional playground
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hyperverse
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10^45 meters
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outerverse
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10^48 meters
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metaverse
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10^51 meters
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omniverse
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10^54 meters
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xenoverse
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infinity
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absolute infinity
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10^-30 radians
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quectoradian
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angle formed when the length of the arc of a circle equals the radius of that circle
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radian
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10^-27 radians
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rontoradian
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10^-24 radians
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yoctoradian
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10^-21 radians
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zeptoradian
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10^-18 radians
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attoradian
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10^-15 radians
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femtoradian
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10^-12 radians
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picoradian
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10^-9 radians
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nanoradian
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10^-6 radians
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microradian
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1/3600 of a degree
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arcsecond
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10^-3 radians
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milliradian
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60 arcseconds
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arcminute
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military unit used in us
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soviet mil
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10 km
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swedish mil
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used in NATO countries
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NATO mil
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1/6400th of a degree
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angular mil
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1/360th of a circle
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degree
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rare mostly historical unit
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ush
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1 degree
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moira
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chinese version of degree
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Chinese du
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islamic equivalent of degree
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Islamic daraja
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10^-2 radians
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centiradian
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metric unit of angular measurement
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gradian
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1/4th distance of two 2 points
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compass quarter point
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comes from 60 base system
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hexacontade
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finer subdivision
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compass half point
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named point on a compass
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compass point
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divide horizon into 32 houses
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Polynesian star compass division
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direction of wind: compass of wind
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point of wind
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used in astrology
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nakshatra
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divide the ecliptic into 12 equal parts
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zodiac sign
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Roman unit of angle: 1/12th in latin
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uncia
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in astrology
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hindu bhaga
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1/6th of a circle
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sextant division
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45 degrees
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octant
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earliest navigation system
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quadrant
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90 degrees
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right angle
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180 degrees
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straight angle
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15 degrees
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hour of angle
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Dec is symbol
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declination
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measure less work from meridian
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hour angle
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1 of 2 coordinates in galactic coordinate system
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galactic latitude
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perpindicular to the ecliptic plane
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ecliptic latitude
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sau is symbol
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sidereal angle unit
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one revolution around a point
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turn/revolution
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360 degrees
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circle
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1 of 2 coordinates in galactic coordinate system
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galactic longitude
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angular coordinate in coordinate system
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ecliptic longitude
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ra is symbol
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right ascension
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10^-1 radians
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deciradian
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10 radians
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decaradian
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100 radians
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hectoradian
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1,000 radians
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kiloradian
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1 million radians
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megaradian
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1 billion radians
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gigaradian
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1 trillion radians
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teraradian
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1 quadrillion radians
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petaradian
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1 quintillion radians
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exaradian
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1 sextillion radians
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zettaradian
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1 septillion radians
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yottaradian
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1 octillion radians
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ronnaradian
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1 nonillion radians
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quettaradian
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historical unit in astronomy
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greek chord measure
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used to measure surface brightness of galaxies
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square arcsecond
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quantifies surface of brightness of space objects
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square arcminute
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41,253 square degrees=observable universe
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square dergree
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essentially a 3d radian
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steradian
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used in physics
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phase angle
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90 degree shift of a signal
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quadricurie unit
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represents angles using binary numbers
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binary angle measurement
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1000 meters: 0.0001 radians
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angular mil
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sau symbol: used in geodesy
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sidereal angular unit
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relates to equatorial coordinates
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galactic coordinate angles
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astronomical unit to describe an objects relative to the plain of the earth around the sun
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ecliptic coordinate angles
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