Introduction to Chemistry
Practice Test
1.
Which of the following releases matter?
a.
engaging a car exhaust system
b.
picking up iron filings with a magnet
c.
turning on an electric hot plate
d.
turbines spinning in a power plant
2.
The general term for a systematic approach used in scientific study is _______________.
a.
quantitative analysis
b.
qualitative analysis
c.
the scientific controversy
d.
the scientific method
3.
A chlorofluorocarbon is a chemical that is made of _____________.
a.
chlorine, fluorine, and carbon
b.
carbon and hydrogen
c.
carbon and oxygen
d.
chloron, fluoron, and carbon
4.
What would you expect to result from a decrease in the amount of ozone in the stratosphere?
a.
increase in the amount of oxygen in the troposphere
b.
decrease in the amount of oxygen in the troposphere
c.
decrease in the number of individual oxygen particles
d.
increase in the number of individual oxygen particles
5.
When a laboratory session ends, you must always ___________.
a.
take a shower in the chemical hazard shower
b.
eat or drink in the laboratory
c.
wash your hands
d.
wash your eyes in the eye-wash fountain
6.
Ozone is found in the _____________________.
a.
mesosphere
b.
stratosphere
c.
troposphere
d.
ionosphere
7.
Research on solubility as a factor that affects the digestion of foods in humans would be an example of ______________.
a.
applied research
b.
fundamental research
c.
technology
d.
theoretical research
8.
In the laboratory, long hair can be a(n) ______________.
a.
chemical hazard
b.
distraction
c.
eye hazard
d.
fire hazard
9.
What is the name given to a set of controlled observations that test a proposed explanation?
a.
conclusion
b.
theory
c.
hypothesis
d.
experiment
10.
What is the measurement of matter whose value depends on the force of gravity?
a.
volume
b.
. mass
c.
weight
d.
energy
11.
What is the name given to research that is undertaken to solve a specific problem?
a.
theoretical research
b.
pure research
c.
applied research
d.
technology
12.
The variable that you plan to change during the course of an experiment is ___________.
a.
a constant
b.
the independent variable
c.
the dependent variable
d.
a control
13.
The practical use of scientific information is ___________.
a.
engineering
b.
technology
c.
applied research
d.
pure research
14.
Anything that has mass and takes up space is _________.
a.
pressure
b.
matter
c.
volume
d.
weight
15.
The study of Earth’s atmospheric ozone and the effect of chlorofluorocarbons on ozone is an example of _____________.
a.
theoretical research
b.
technology
c.
basic research
d.
applied research
16.
Chemists whose specialty is determining the composition of chemicals work in the field of ________.
a.
physical chemistry
b.
analytical chemistry
c.
inorganic chemistry
d.
organic chemistry
17.
The type of data that is descriptive in nature is ___________.
a.
quantitative data
b.
random data
c.
qualitative data
d.
hypothetical data
18.
A tentative explanation for a series of observations is a __________.
a.
law
b.
hypothesis
c.
theory
d.
model
19.
A branch of chemistry that is concerned with how and why chemicals interact is ______________.
a.
physical chemistry
b.
analytical chemistry
c.
biochemistry
d.
theoretical chemistry
