Part 4 - Measurements

metric system

system where the units used for scientific measurement are from

international system of units (SI units)

• modern form of the metric system

• based on fundamental units (base units)

• based on prefixes, decimals and power of 10

kilo

• k

• 10³ of base unit

hecto

• h

• 10² of base unit

deca

• da

• 10¹ of base unit

base unit

10⁰ of base unit

deci

• d

• 10^-1 of base unit

centi

• c

• 10^-2

milli

• m

• 10^-3 of base unit

micro

• u

• 10^-6 of base unit

1000 m

1km = ____m

100 m

1 hectometer = ____m

10 m

1 decameter = ____m

0.1 m

1 decimeter = ____m

0.01 m

1 centimeter = ____m

0.001 m

1 mm = ____m

0.000001 m

1 micrometer = ____m

m (kg)

symbol and unit of mass

d (m)

symbol and unit of length/distance

t (s)

symbol and unit of time

T (K)

symbol and unit of temperature

n (mol)

symbol and unit of amount of substance

I (cd.)

symbol and unit of luminous intensity

I (A or amp.)

symbol and unit of electric current

SI base unit

used to formulate derived units

derived SI unit

obtained by multiplication or division of one or more base units