1 - Quantities and Units Flashcards
1
Q
What are the SI units?
A
An internationally agreed system of base units.
2
Q
What are the SI units used for?
A
Deriving any quantity.
3
Q
What are the actual SI units? What is each measured in?
A
mass (kg) length (m) time (s) current (A) temperature (K) amount of substance (mol) luminous intensity (cd) - candela
4
Q
How many SI base units is there?
A
7
5
Q
What are prefixes?
A
Scaling factors that let a number be within a certain range without using standard form.
6
Q
What is 10^-15?
A
femto (f)
7
Q
What is 10^-12
A
pico (p)
8
Q
What is 10^-9
A
nano (n)
9
Q
What is 10^-6
A
micro (μ)
10
Q
What is 10^-3
A
milli (m)
11
Q
What is 10^-2
A
centi(c)
12
Q
What is 10^-1
A
deci (d)
13
Q
What is 10^3
A
kilo(k)
14
Q
What is 10^6
A
mega (M)
15
Q
What is 10^9
A
giga (G)
