Measurments and Units Flashcards
What are two important skills to have in science
Taking precise measurments and using measurments correctly
What is a conversion factor
A unit that helps convert other units into other units
What is a cubit
The length of a man’s arm (18 inches)
Among Greek and Romans the ____ was preferred as a measurement
Foot
What is a furlong
the distance horses travel (1/8 of a mile)
What is a fathom
6 ft long or 1.83 meters
What is sounding
Measuring the depth of water
What is a Sounding lead
A tool used for sounding
What was the word the crew said when the water was deep another
Mark-twain
verst measurement meaning
the distance for horses to travel between stations or inns
what is the origin of our word for inch
uncia
When was the publication of the International System of Units pushed?
1950
When was the exact measurement of an inch published
1959 2.54 cm
What is the definition of a mile according to the Romans
5k feet
What act defined a mile as 5280 feet
English act of parlement
Statute mile
our modern mile
What is the International System of Units?
Work on specifying measurements for science
When was the metric system published? (Also called the SI system)
1960
Who administered the SI system?
International Bureau f Weights and Measurments
Meter symbol
M
What does a meter measure
distance
What are the seven base units in the SI system
Meter Kilogram Second Ampere Kelvin Candela Mole
Kilogram symbol
kg
What does a Kilogram measure
Mass
Second symbol
s
what does a second measure
time
Ampere symbol
A
Ampere measurment
electric current
kelvin symbol
K
what does a kelvin measure
heat
Candela symbol
cd
Candela measurment
luminous intensity
Mole symbol
mol
Mole measurment
amount of substance
What are some SI system derivative measurments
Joule
Newton
Cubic Meter
Watt
Pascal
Joule symbol
J
Joule measurment
energy
Newton symbol
N
Cubic meters symbol
m3
Cubic meter measurement
volume
Newton measurment
force
watt symbol
W
watt measurment
power
Pascal symbol
Pa
Pascal measurment
Pressure
