Chapter 2 Flashcards
1
Q
Accuracy
A
how close the experimental results are to the true or real value
2
Q
Precision
A
how reproducible the measurement is if done multiple times
3
Q
Exact
A
numbers that we count (12 apples); numbers
by definition (1 dozen = 12); simple fractions (1/2)
Exact numbers have unlimited significant figures
4
Q
Inexact
A
Anything that is measure
5
Q
1 km
kilometer: prefix kilo, symbol k
A
=1000 m
6
Q
millisecond: prefix milli, symbol m
1 s
A
= 1000 ms
7
Q
100 cm
centimeter: prefix centi, symbol c
A
= 1 meter
8
Q
Volume
A
1 cm3 = 1 mL
1000 cm3 = 1 L
9
Q
Density
A
= Mass/Volume g/mL. or g/cm^3
