2.1 physical quantities and units

what is the symbol for mass

m

what is the symbol for weight

W

what is symbol for force

F

what is symbol for displacement

d

how do you calculate percentage

estimated value-actual value/actual value X 100

what is unit for displacement

meter + bearing

what are the 7 base units

mass

length

time

temperature

electrical current

amount of substance

light intensity

what is base unit for mass

kilogram

what is base unit length

meter

base unit for time

second

base unit for temperature

kelvin

base unit for electrical current

ampere

base unit for amount of substance

mole

base unit for light intensity

candela

what does homogenous mean

the same

what is tera in standard form

1 X 10^ 12

what is giga in standard form

1 X 10^9

what is mega in standard form

1 X 10^6

what is kilo in standard form

1 X 10³

what is milli in standard form

1 X 10^-3

what is micro in standard form

1 X 10^-6

what is nano in standard form

1 X 10^-9

what is pico in standard form

1 X 10^-12

what is symbol for tera

T

what is symbol for giga

G

what is symbol for mega

M

what is symbol for kilo

K

what is symbol for milli

m

what is symbol for micro

µ

what is symbol for nano

n

what is symbol for pico

p