Chp 1 Basic Concepts: Numbers, Units and Consistency Checks Flashcards
1
Q
Define Significant Figure
A
“any digit in the number ignoring leading zeros and the decimal point.”
2
Q
How many sig. figs for:
a. 821
b. 160.6
c. 160.60
d. 0.0310
e. 1.5 x 10^3
A
a. 3
b. 4
c. 5
d. 3
e. 2
3
Q
Define Accuracy
A
a measure of how close a value is to the “true” value
4
Q
Define Precision
A
is an indication of the repeat-ability of a measurement
5
Q
SI Units for:
a. length
b. mass
c. time
A
a. meter (m)
b. kilogram (kg)
c. second (s)
