CSET Science Subtest 1: Practice exam
and answers, Top Questions & Answers.
Rated A+
-explain how the 20 amino acids found in proteins are formed by only 4 nucleotide bases - ✔✔Triplet
nucleotide codons translate to amino acids. Since there are 4 types of nucleotides that can be arranged
in combinations of 3, there are 4^3 = 64 possible different codons. Each codon codes for a specific
amino acid, and as there are only 20 amino acid, while each codon itself can only specify one amino
acid.
After studying geologic maps of Cali, a researcher hypothesizes that the bedrock in a region is offset
from similar rocks a hundred miles to the south by movement along a transform fault. Which of the
following experiments would provide the strongest evidence to support this hypothesis about the
evolution of Cali's complex geologic history? - ✔✔A comparative study of mineral assemblages in the 2
different rocks.
In the early 20th century, Robert Milikan created electrically charged oil droplets and then determined
their electric charge by calculating the magnitude of the electric charge that would suspend them in
midair in opposition to gravity. He found that the electric charge on each droplet was always an integer
multiple of what we now know as the basic unit charge. Millikan's experiment is credited with
discovering: - ✔✔The charge on a single electron
A student performs the following neutralization reaction 5 times using different amounts of reactants.
The change in temperature of the reaction mixture for each reaction is shown in the graph.
NaOH + HCL --> NaCL + H2O - ✔✔Graph shows: doubling the number of moles of reactants leads to a
twofold increase in the temperature change caused by the reaction.
The graph shows the relationship between the temperature and luminosity of main-sequence stars as
depicted on a Hertzsprung-Russel diagram. Which of the following statement best describes the change
in luminosity that occurs as the temperature increased above 10,000 Kelvin? - ✔✔The change in
luminosity per unit temperature decreases.
, The mass and volume of five substances are measured and recorded in the table shown. Which of the
following is a valid conclusion that can be drawn from the data in the table? - ✔✔substance 5 will float
in substance 2.
2 liquid 9g 9cm
5 solid 8g 9cm
bc substance 5 is a solid and has a lower mass than substance 2, it will be able to float in substance 2
A laboratory procedure requires the use of a 0.25M NaOH solution. If according to the lab procedure,
2.00g of NaOH should be dissolved in 200ml of distilled water to prepare this solution, which of the
following mathematical expressions could be used to determine the number of formula units of NaOH
used. - ✔✔2.00g NaOH (1mol NaOH/40.0g NaOH) (6.022x10^23 NaOH formula units/1mol NaOH)
A team of climate scientists is planning a yearlong research project in Antarctica to drill several hundred
meters into an ice sheet to retrieve ice cores. A previous drilling project in the same area had limited
success bc of the failure of the drilling equipment after several months, so the team has contracted an
engineering company to design a specialized drill. Which of the following factors will be the primary
constraint on any design solution that the engineering company develops? - ✔✔the physical conditions
where the drilling equipment will be used
A civil engineer has been contracted to develop a prototype for an inexpensive temporary retaining wall
that could be installed quickly when a landslide occurs and small debris flows toward busy roadways.
The engineer comes up with several possible designs that, in theory, will do the job and be relatively
easy to install. Before choosing which design should be developed into a prototype, it is most important
that the engineer: - ✔✔build physical models of each design and test them under realistic field
conditions.
Which of the following types of mathematical equations best represents the underlying pattern in the
relationship between time and speed of the ball rolling down the inclined plane? - ✔✔s(t) = at + b
The production of carbohydrates from CO2 and H2O that occurrs during photosynthesis begins with the
absorption of photons by plant pigments and the transfer of this energy to chlorophyll A. This initial step
is particularly important to the process bc it leads directly to the: - ✔✔Production of the energy used to
drive the overall reactions.
and answers, Top Questions & Answers.
Rated A+
-explain how the 20 amino acids found in proteins are formed by only 4 nucleotide bases - ✔✔Triplet
nucleotide codons translate to amino acids. Since there are 4 types of nucleotides that can be arranged
in combinations of 3, there are 4^3 = 64 possible different codons. Each codon codes for a specific
amino acid, and as there are only 20 amino acid, while each codon itself can only specify one amino
acid.
After studying geologic maps of Cali, a researcher hypothesizes that the bedrock in a region is offset
from similar rocks a hundred miles to the south by movement along a transform fault. Which of the
following experiments would provide the strongest evidence to support this hypothesis about the
evolution of Cali's complex geologic history? - ✔✔A comparative study of mineral assemblages in the 2
different rocks.
In the early 20th century, Robert Milikan created electrically charged oil droplets and then determined
their electric charge by calculating the magnitude of the electric charge that would suspend them in
midair in opposition to gravity. He found that the electric charge on each droplet was always an integer
multiple of what we now know as the basic unit charge. Millikan's experiment is credited with
discovering: - ✔✔The charge on a single electron
A student performs the following neutralization reaction 5 times using different amounts of reactants.
The change in temperature of the reaction mixture for each reaction is shown in the graph.
NaOH + HCL --> NaCL + H2O - ✔✔Graph shows: doubling the number of moles of reactants leads to a
twofold increase in the temperature change caused by the reaction.
The graph shows the relationship between the temperature and luminosity of main-sequence stars as
depicted on a Hertzsprung-Russel diagram. Which of the following statement best describes the change
in luminosity that occurs as the temperature increased above 10,000 Kelvin? - ✔✔The change in
luminosity per unit temperature decreases.
, The mass and volume of five substances are measured and recorded in the table shown. Which of the
following is a valid conclusion that can be drawn from the data in the table? - ✔✔substance 5 will float
in substance 2.
2 liquid 9g 9cm
5 solid 8g 9cm
bc substance 5 is a solid and has a lower mass than substance 2, it will be able to float in substance 2
A laboratory procedure requires the use of a 0.25M NaOH solution. If according to the lab procedure,
2.00g of NaOH should be dissolved in 200ml of distilled water to prepare this solution, which of the
following mathematical expressions could be used to determine the number of formula units of NaOH
used. - ✔✔2.00g NaOH (1mol NaOH/40.0g NaOH) (6.022x10^23 NaOH formula units/1mol NaOH)
A team of climate scientists is planning a yearlong research project in Antarctica to drill several hundred
meters into an ice sheet to retrieve ice cores. A previous drilling project in the same area had limited
success bc of the failure of the drilling equipment after several months, so the team has contracted an
engineering company to design a specialized drill. Which of the following factors will be the primary
constraint on any design solution that the engineering company develops? - ✔✔the physical conditions
where the drilling equipment will be used
A civil engineer has been contracted to develop a prototype for an inexpensive temporary retaining wall
that could be installed quickly when a landslide occurs and small debris flows toward busy roadways.
The engineer comes up with several possible designs that, in theory, will do the job and be relatively
easy to install. Before choosing which design should be developed into a prototype, it is most important
that the engineer: - ✔✔build physical models of each design and test them under realistic field
conditions.
Which of the following types of mathematical equations best represents the underlying pattern in the
relationship between time and speed of the ball rolling down the inclined plane? - ✔✔s(t) = at + b
The production of carbohydrates from CO2 and H2O that occurrs during photosynthesis begins with the
absorption of photons by plant pigments and the transfer of this energy to chlorophyll A. This initial step
is particularly important to the process bc it leads directly to the: - ✔✔Production of the energy used to
drive the overall reactions.
