SI PREFIXES

Question 1

TERA (Gr. “monster”)

Answer 1

Symbol: T
Factor: 10^12
Ordinary notation: 1 000 000 000 000
Name: Trillion

Question 2

GIGA (Gr. “giant”)

Answer 2

Symbol: G
Factor: 10^9
Ordinary notation: 1 000 000 000
Name: Billion

Question 3

MEGA (Gr. “big”)

Answer 3

Symbol: M
Factor: 10^6
Ordinary notation: 1 000 000
Name: Million

Question 4

KILO (Gr. “thousand”)

Answer 4

Symbol: k
Factor: 10^3
Ordinary notation: 1 000
Name: Thousand

Question 5

HECTO (Gr. “hundred”)

Answer 5

Symbol: h
Factor: 10^2
Ordinary notation: 100
Name: Hundred

Question 6

DEKA (Gr. “ten”)

Answer 6

Symbol: da
Factor: 10^1
Ordinary notation: 10
Name: Ten

Question 7

Base unit

Answer 7

multiplied by: 10°

Question 8

deci (Lat. “tenth”)

Answer 8

Symbol: d
Factor: 10^-1
Ordinary notation: 0.1
Name: tenth

Question 9

centi (Lat. “hundred”)

Answer 9

Symbol: c
Factor: 10^-2
Ordinary notation: 0.01
Name: hundredth

Question 10

milli (Lat. “thousand”)

Answer 10

Symbol: m
Factor: 10^-3
Ordinary notation: 0. 001
Name: thousandth

Question 11

micro (Gr. “small”)

Answer 11

Symbol: μ
Factor: 10^-6
Ordinary notation: 0. 000 001
Name: millionth

Question 12

nano (Gr. “dwarf”)

Answer 12

Symbol: n
Factor: 10^-9
Ordinary notation: 0. 000 000 001
Name: billionth

Question 13

pico (Spa. “tiny bit”)

Answer 13

Symbol: p
Factor: 10^-12
Ordinary notation: 0. 000 000 000 001
Name: trillionth