WGU C165 Qestions an Answers
1. When a candle burns, its molecules consisting of hydrogen and carbon atoms combine with oxygen to produce
carbon dioxide and water. The physi- cal science that is BEST for dealing with how the light from the candle
travels through space is:: a. Chemistry
b. Physics *
c. Earth Science
d. Zoology
2. Auroras are bursts of light that happen when charged particles from the sun interact with Earth's
magnetic field and atoms and molecules in our atmosphere.
Which physical science is BEST SUITED to explain the interactions of the charged particles with magnetic field?:
Physics *
b. Chemistry
c. Life Science
d. Zoology
3. The physical science that is BEST for finding the best locations to drill for the petroleum used to make the
candles is:: a. Chemistry
b. Physics
c. Earth Science *
d. Life Science
4. The science BEST for studying how hydrogen sulfide and carbon dioxide react is:: a. Physics
b. Earth Science
c. Chemistry *
d. Life Science
5. Acidic soil reacts with common rock-forming minerals to release ions to form new minerals. Which
physical science is BEST for studying these processes?: a. Chemistry *
b. Physics
c. Earth Science
d. Zoology
6. The science BEST for studying photosynthetic bacteria is:: a. Physics
b. Earth Science
c. Chemistry
d. Life Science *
7. What is usually the main advantage of being able to do a laboratory experi- ment rather than a field study if
both investigations allow you to collect similar information?: a. It is possible to change only one variable at a time *
, WGU C165 Qestions an Answers
b. Working conditions are always better indoors
, WGU C165 Qestions an Answers
c. The measuring equipment will be more precise
d. The data processing can be done right there
8. Which of the following terms best describes a research project that involves sending a space probe to a distant
asteroid to land on it and collect data?: a. a controlled experiment
b. a laboratory experiment
c. an observational study *
d. a statistical model
9. A space probe is an unmanned spacecraft. Which 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?: a. a controlled
experiment
b. a laboratory experiment
c. a field study *
d. a statistical survey
10.Which of these fields depends the MOST on observational studies?: a.
Physics
b. Earth Science *
c. Chemistry
d. Zoology
11.The kinetic theory of gases is based on the assumption that the molecules that form the gas are in random
motion and bounce off the walls of their container and each other as if they were billiard balls. The forces
between real molecules are more complicated.
This is an example of:: a. using a model *
b. formulating a hypothesis
c. carrying out an observational study
d. performing a field study
12.Why can't astronomers conduct a scientific study to determine which visible star, other than our sun, is
the nicest?: a. Existing telescopes are not powerful enough
b. There is no way to prove any answer wrong *
c. The Hubble telescope has better uses
d. A project of that sort can not get funding
13.In 1811, physicist Amedo Avogadro proposed that the same volume of two different gases at the same
temperature and pressure contain the same number of molecules. His proposal received little attention until the
1850's, when chemist Stanislao Cannizzaro, in particular, argued that Avogadro's idea agreed with all the physical
and chemical laws discovered up to that time.
1. When a candle burns, its molecules consisting of hydrogen and carbon atoms combine with oxygen to produce
carbon dioxide and water. The physi- cal science that is BEST for dealing with how the light from the candle
travels through space is:: a. Chemistry
b. Physics *
c. Earth Science
d. Zoology
2. Auroras are bursts of light that happen when charged particles from the sun interact with Earth's
magnetic field and atoms and molecules in our atmosphere.
Which physical science is BEST SUITED to explain the interactions of the charged particles with magnetic field?:
Physics *
b. Chemistry
c. Life Science
d. Zoology
3. The physical science that is BEST for finding the best locations to drill for the petroleum used to make the
candles is:: a. Chemistry
b. Physics
c. Earth Science *
d. Life Science
4. The science BEST for studying how hydrogen sulfide and carbon dioxide react is:: a. Physics
b. Earth Science
c. Chemistry *
d. Life Science
5. Acidic soil reacts with common rock-forming minerals to release ions to form new minerals. Which
physical science is BEST for studying these processes?: a. Chemistry *
b. Physics
c. Earth Science
d. Zoology
6. The science BEST for studying photosynthetic bacteria is:: a. Physics
b. Earth Science
c. Chemistry
d. Life Science *
7. What is usually the main advantage of being able to do a laboratory experi- ment rather than a field study if
both investigations allow you to collect similar information?: a. It is possible to change only one variable at a time *
, WGU C165 Qestions an Answers
b. Working conditions are always better indoors
, WGU C165 Qestions an Answers
c. The measuring equipment will be more precise
d. The data processing can be done right there
8. Which of the following terms best describes a research project that involves sending a space probe to a distant
asteroid to land on it and collect data?: a. a controlled experiment
b. a laboratory experiment
c. an observational study *
d. a statistical model
9. A space probe is an unmanned spacecraft. Which 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?: a. a controlled
experiment
b. a laboratory experiment
c. a field study *
d. a statistical survey
10.Which of these fields depends the MOST on observational studies?: a.
Physics
b. Earth Science *
c. Chemistry
d. Zoology
11.The kinetic theory of gases is based on the assumption that the molecules that form the gas are in random
motion and bounce off the walls of their container and each other as if they were billiard balls. The forces
between real molecules are more complicated.
This is an example of:: a. using a model *
b. formulating a hypothesis
c. carrying out an observational study
d. performing a field study
12.Why can't astronomers conduct a scientific study to determine which visible star, other than our sun, is
the nicest?: a. Existing telescopes are not powerful enough
b. There is no way to prove any answer wrong *
c. The Hubble telescope has better uses
d. A project of that sort can not get funding
13.In 1811, physicist Amedo Avogadro proposed that the same volume of two different gases at the same
temperature and pressure contain the same number of molecules. His proposal received little attention until the
1850's, when chemist Stanislao Cannizzaro, in particular, argued that Avogadro's idea agreed with all the physical
and chemical laws discovered up to that time.
