Chapter 2 Abigail Flashcards
The base unit of length in the SI System is the
meter
The exactness of a measurement in indicated by its number of -
a) accurate digits
b) algorithms
c) conversation factors
d) significant digits
D - significant digits
The SI Prefix meaning “one thousand” is
a) centi
b) kilo
c) milli
d) nano
B - kilo
The units used to express measurements such as speed, area, and volume are called ____ units.
a) precise
b) derived
c) significant
d) basic
B - derived
Which of the following is NOT required in order to make a measurement?
a) a method of making a comparison
b) a standard with which to compare what is being measured
c) knowledge of exactly what is to be measured
d) units that are based on the English system of measurement
D - Units that are based on the English system of measurement
The SI base unit for the measurement of mass is the
kilogram
A balance is used to determine the -
a) mass of an object
b) length of an object
c) density of an object
d) temperature of an object
A - mass of an object
Which metric unit is most appropriate for measuring the distance between Tuscaloosa, AL and Carrollton, AL -
a) meter
b) millimeter
c) kilometer
d) megameter
C - kilometer
The base unit of time in the SI system is
second
Write in scientific notation:9 367 421
9.367421 X 10(6) (can’t make superscripts so the (6) should really be a superscript. Same throughout all these notecards
810 540 - scientific notation
8.10540X 10 (2)
0.00112 - scientific notation
1.12 X 10(-3)
0.7210 - scientific notation
7.210 X 10(-1)
0.1000003030 - scientific notation
1.000003030 X 10(-1)
87.073 meters - round to three sig figs
87.1 meters
4.3621 X 10(8) meters - round to three sig figs
4.36 X 10(8) meters
0.015 52 meter - round to three sig figs
.0155 meters
9009 meters - round to three sig figs
9010 meters
1.777 X 10(-3) meter - round to three sig figs
1.78 X 10(-3) meters
629.55 meters - round to three sig figs
6.30 X 10(2) m
2.30m X 3.65m X 0.55m =
round off the answers to the correct number of sig figs
4.6 m(3)