Introduction to Physics (Ch. 1.1 - 1.8) Flashcards
1
Q
SI units
A
- units of meters, kilograms, and seconds
- also known as mks system
2
Q
peta- prefix
A
- 1015
- P
3
Q
tera- prefix
A
- 1012
- T
4
Q
giga- prefix
A
- 109
- G
5
Q
mega- prefix
A
- 106
- M
6
Q
kilo- prefix
A
- 103
- k
7
Q
hecto- prefix
A
- 102
- h
8
Q
deka- prefix
A
- 101
- da
9
Q
deci- prefix
A
- 10-1
- d
10
Q
centi- prefix
A
- 10-2
- c
11
Q
milli- prefix
A
- 10-3
- m
12
Q
micro- prefix
A
- 10-6
- μ
13
Q
nano- prefix
A
- 10-9
- n
14
Q
pico- prefix
A
- 10-12
- p
15
Q
femto- prefix
A
- 10-15
- f
16
Q
Significant figures rules
A
- non-zero digits are always significant
- any zeros between two significant digits are significant
- a final zero or trailing zeros in the decimal portion ONLY are significant
17
Q
Significant figures when multiplying or dividing
A
- The # of sig figs is equal to the # of sig figs in the least accurately known quantity
18
Q
Significant figures when adding or subtracting
A
- The # of sig figs is equal to the smallest # of sig figs in any of the individual terms
