Data Analysis
Practice Test
1.
What is the measurement of matter whose value depends on the force of gravity?
a.
energy
b.
. mass
c.
weight
d.
volume
2.
Which of the following materials was discovered by chance during research on artificial fiber creation?
a.
lysozyme
b.
nylon
c.
ozone
d.
silk
3.
Dimensional analysis is a method of problem-solving that focuses on ________ .
a.
error
b.
units
c.
precision
d.
accuracy
4.
The practical use of scientific information is ___________.
a.
engineering
b.
technology
c.
applied research
d.
pure research
5.
What is the percent error if a measured value is 24.59 g/mL and the accepted value is 25.49 g/mL?
a.
3.5%
b.
1.037
c.
0.0366
d.
0.9647
6.
A chlorofluorocarbon is a chemical that is made of _____________.
a.
carbon and hydrogen
b.
chlorine, fluorine, and carbon
c.
chloron, fluoron, and carbon
d.
carbon and oxygen
7.
Why can an object's weight vary with location but its mass cannot?
a.
Mass is a measure of the amount of matter in an object; weight is not.
b.
Determinations of mass account for varying gravitational pulls in different locations.
c.
Weight is a measure of both mass and the effect of Earth's gravitational pull on the matter. Mass measures only the amount of matter.
d.
Systems of measurement vary with location.
8.
Which of the following releases matter?
a.
engaging a car exhaust system
b.
turning on an electric hot plate
c.
picking up iron filings with a magnet
d.
turbines spinning in a power plant
9.
Perform the indicated mathematical operations and report the answer to the proper number of significant figures. (21.55 x 4.12 ) / 42.42
a.
2.09
b.
2.093 0
c.
2.093
d.
2.1
10.
The representation of data on graph that resembles a pizza is a _________.
a.
line graph
b.
circle graph
c.
bar graph
d.
inverse
11.
The study of Earths atmospheric ozone and the effect of chlorofluorocarbons on ozone is an example of _____________.
a.
theoretical research
b.
basic research
c.
applied research
d.
technology
12.
How many kilograms of lead are present in 426 pounds of lead? Each kilogram contains 2.20 pounds.
a.
194 kg
b.
193.6 kg
c.
937.2 kg
d.
937 kg
13.
Suppose that you experimentally determine the mass of nylon formed as a result of each of several similar chemical processes. What are the measurements of mass called?
a.
qualitative data
b.
independent variables
c.
controls
d.
quantitative data
14.
Which of the following physical properties is not paired with the correct SI base unit or measurement?
a.
time: second
b.
length: meter
c.
temperature: Kelvin
d.
mass: gram
15.
How many milliliters are there in 1.0 microliter?
a.
1.0 x 10
-2
mL
b.
1.0 x 10
-4
mL
c.
1.0 x 10
-1
mL
d.
1.0 x 10
-3
mL
16.
Ozone is found in the _____________________.
a.
ionosphere
b.
troposphere
c.
stratosphere
d.
mesosphere
17.
What scale provides the base unit for temperature in the SI system?
a.
Centigrade
b.
Kelvin scale
c.
Fahrenheit scale
d.
Celsius scale
18.
A measure of the closeness of a series of measurements is their ___________ .
a.
error
b.
precision
c.
accuracy
d.
percent error
19.
In the laboratory, long hair can be a(n) ______________.
a.
fire hazard
b.
eye hazard
c.
distraction
d.
chemical hazard
20.
The general term for a systematic approach used in scientific study is _______________.
a.
quantitative analysis
b.
the scientific method
c.
the scientific controversy
d.
qualitative analysis
21.
How is the slope of a linear graph calculated?
a.
slope = (y
2
y
1
) / (x
2
x
1
)
b.
slope = (x
2
x
1
) / (y
2
y
1
)
c.
slope = (x
2
x
1
) / 100
d.
slope = (y
2
y
1
) x 100
22.
What is the area in square millimeters of a rectangle that is 7.431 cm long and 23.33 mm wide?
a.
1734 mm
2
b.
173.4 mm
2
c.
17.34 mm
2
d.
1.734 mm
2
23.
A hypothesis is more likely to become a __________ because __________.
a.
theory, fewer experiments are needed in order to support it
b.
theory, scientific laws are conclusions reached by many scientists about relationships in nature
c.
scientific law; theories are conclusions reached by many scientists about relationships in nature
d.
scientific law; fewer trials are needed during the experimental phase
