1. When a candle burns, its molecules consisting of hy- 2. Physics
drogen and carbon atoms combine with oxygen to
produce carbon dioxide and water. The physical sci-
ence that is BEST for dealing with how the light from
the candle travels through space is
1. Chemistry
2. Physics
3. Earth Science
4. Zoology
2. Auroras are bursts of light that happen when charged 1. Physics
particles from the sun interact with Earth's magnetic
field and atoms and molecules in our atmosphere.
Which physical science is BEST SUITED explain the
interactions of the charged particles with magnetic
field?
1. Physics
2. Chemistry
3. Life Science
4. Zoology
3. The physical science that is BEST for finding the best 3. Earth Science
locations to drill for the petroleum used to make the
candles is
1. Chemistry
2. Physics
3. Earth Science
4. Life science
4. The science BEST for studying how hydrogen sulfide 3. Chemistry
and carbon dioxide react is
1. Physics
, WGU Integrated Physical Sciences - C165 Study Guide for OA
2. Earth Science
3. Chemistry
4. Life Science
5. Acidic soil reacts with common rock-forming minerals 1. Chemistry
to release ions to form new minerals. Which physical
science is BEST for studying these processes?
1. chemistry
2. physics
3. earth science
4. zoology
6. The science BEST for studying photosynthetic bacteria 4. Life Science
is
1. Physics
2. Earth Science
3. Chemistry
4. Life Science
7. What is usually the main advantage of being able to 1. It is possible to change
do a laboratory experiment rather than a field study if only one variable at a time.
both investigations allow you to collect similar infor-
mation?
1. It is possible to change only one variable at a time.
2. Working conditions are always better indoors.
3. The measuring equipment will be more precise.
4. The data processing can be done right there.
8. Which of the following terms best describes a re- 3. an observational study
search project that involves sending a space probe to
a distant asteroid to land on it and collect data?
, WGU Integrated Physical Sciences - C165 Study Guide for OA
1. a controlled experiment
2. a laboratory experiment
3. an observational study
4. a statistical model
9. A space probe is an unmanned spacecraft. Which 3. a field study
of these terms BEST describes a research project in
which a space probe is sent to collect soil samples on
planet Mars and then report the data back to Earth?
1. a controlled experiment
2. a laboratory experiment
3. a field study
4. a statistical survey
10. Which of these fields depends the MOST on observa- 2. Earth science
tional studies?
1. physics
2. Earth science
3. chemistry
4. Zoology
11. The kinetic theory of gases is based on the assump- 1. using a model
tion that the molecules that form the gas are in ran-
dom motion and bounce off the walls of their contain-
er and off each other as if they were billiard balls. The
forces between real molecules are more complicated.
This is an example of?
1. using a model
2. formulating a hypothesis
, WGU Integrated Physical Sciences - C165 Study Guide for OA
3. carrying out an observational study
4. performing a field study
12. Why can't astronomers carry out a scientific research 2. There is no way to prove
study to determine which visible star, other than our any answer wrong.
sun, is the nicest?
1. Existing telescopes aren't powerful enough.
2. There is no way to prove any answer wrong.
3. The Hubble telescope has better uses.
4. A project of that sort cannot get funding.
13. In 1811, physicist Amedo Avogadro proposed that the 3. It is most accurately de-
same volume of two different gases at the same tem- scribed as a hypothesis
perature and pressure contain the same number of starting in 1811, but a law
molecules. His proposal received little attention until after the 1850's.
the 1850s, when chemist Stanislao Cannizzaro, in par-
ticular, argued that Avogadro's idea agreed with all the
physical and chemical laws discovered up to that time.
Today, Avogadro's statement about gases is some-
times referred to as "Avogadro's hypothesis" or "Avo-
gadro's law." Which statement describes when each of
those two terms would be MOST accurately applied?
1. It is most accurately described as a law throughout.
2. It is most accurately described as a hypothesis
throughout.
3. It is most accurately described as a hypothesis start-
ing in 1811, but a law after the 1850's.
4. It is most accurately described as a law starting in
1811, but a hypothesis after the 1850's.
14. 2. theory