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NLN PAX Exam Questions
Page 9 of 75
161.
During the game the quarterback threw the football 65 yards to his receiver. The time it took the football to travel from the quarterback’s hands to the receiver’s hands was 15 seconds. At what speed did the football travel?
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260 ypm
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0.23 ypm
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433.33 ypm
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9.75 ypm
Correct answer: 260 ypm
The football traveled at a speed of 260 ypm. To find the motion of the football, you will need to use the following formula:
average speed = distance traveled / time to travel distance
For this problem, we will convert the seconds to minutes: 15/60 = 0.25 minutes.
Then, find the rate of speed: 65 yards / 0.25 minutes = 260 ypm.
162.
View the supporting details to answer the following question.
After reading this passage, all except which of the following could be inferred by the reader?
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Businesses are exempt from paying use tax
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Use tax must be reported when filing income tax returns
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Internet purchases are not truly free of tax
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Identifying individuals who don’t pay use tax has become easier
Correct answer: Businesses are exempt from paying use tax
An inference is similar to determining if a statement is true or false; however, it requires the reader to take an educated guess based on the given facts. The reader cannot infer that businesses are exempt from paying use tax because the passage states: “If you have a lot of Internet type purchases of equipment for use in your business, sometimes these purchases can trigger an audit.” The business’s Internet type purchases of equipment can trigger an audit because the business is subject to use tax.
The reader can infer that use tax must be reported when filing income tax returns because the passage states that there is now a box that asks whether or not the taxpayer made any purchases outside of the state that would be subject to use tax. The reader can infer that Internet purchases are not truly free of tax because the end user should pay use tax on that item. The reader can infer that identifying individuals who don’t pay use tax has become easier because the passage states: “As the computer systems at the taxation agencies have improved and more transactions are being digitized, the enforcement of Illinois Use Tax collection has improved greatly.”
163.
A wave travels 12 m/s and has a wavelength of 3.4 m. What is the frequency of the wave?
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3.53 Hz
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40.8 Hz
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5.68 Hz
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31.24 Hz
Correct answer: 3.53 Hz
Use the equation:
speed = frequency × wavelength
Rearrange for frequency:
frequency = speed / wavelength
Solve:
frequency = 12 m/s / 3.4 m
frequency = 3.53 Hz
164.
DNA contains four nitrogenous bases that form hydrogen bonds with another base. What base does adenine (A) bond with?
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Thymine
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Guanine
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Cytosine
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Uracil
Correct answer: Thymine
The adenine nitrogenous base bonds with the thymine nitrogenous base.
Deoxyribonucleic acid (DNA) is a macromolecule that contains coded instructions for the body to produce proteins. It is composed of four nucleotide letters: A (adenine), T (thymine), G (guanine), and C (cytosine).
These nucleotides are arranged in three-letter combinations to make 64 possible "words" called codons. A gene is a "sentence" made of a specific order of codons that produces a protein. Each codon specifies one amino acid and these codons instruct ribosomes to assemble the amino acids in a particular order. A chromosome is a structure made of protein and one molecule of DNA. Chromosomes regulate where a gene starts and ends and which genes are read in a cell.
The relationships between the bases are always constant. Adenine and thymine always bond (A-T) and guanine and cytosine always bond (G-C). Thus, A-T and G-C are referred to as complementary bases. Adenine will bind to Uracil only in RNA.
165.
A fan belt on a car goes from 6 revolutions per second to 12 revolutions per second in 5 seconds. What is the belt's angular acceleration?
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1.2 rev/sec²
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3.6 rev/sec²
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2.0 rev/sec²
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2.4 rev/sec²
Correct answer: 1.2 rev/sec²
In order to find the belt's angular acceleration, you will need to find the change in angular speed (12 rev/sec - 6 rev/sec = 6 rev/sec) and divide the change by the time it took to complete the angular speed (6 rev/sec / 5 sec = 1.2 rev/sec²).
166.
A ball is thrown off a cliff that is 10 meters tall. The horizontal speed of the ball is 8 m/s. Assuming no air resistance, how far from the base of the cliff will the ball land?
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11.43 meters
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13.83 meters
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17.18 meters
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19.54 meters
Correct answer: 11.43 meters
First, calculate flight time:
d = 0.5at² + vit
Since initial velocity is zero, the equation converts to:
d = 0.5at²
Rearrange to solve for t:
t = √(d/0.5a)
Solve:
t = √(10 m / (0.5) × 9.8 m/s²) = 1.429 seconds
The equation for horizontal distance is: d = vt
Fill in and solve:
d = (8 m/s) × (1.429 s) = 11.43 meters
167.
Sandy earned 2.5% commission on all of her sales. In May, Sandy sold $175,162. How much was Sandy’s commission check for May?
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$4,379.05
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$4,790.50
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$5,254.86
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$6,274.30
Correct answer: $4,379.05
In order to solve the problem, multiply the sales by the commission percentage.
$175,162 × 0.025 = $4,379.05
168.
Solve the following by subtracting.
28 1/2 - 12 1/4 =
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16 1/4
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16 1/2
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16 3/4
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16 1/8
Correct answer: 16 1/4
1. Convert 28 1/2 to improper fraction
Use this rule: a b/c = (ac+b)/c
(28×2+1)/2 − 12 1/4
2. Simplify 28×2 to 56
(56+1)/2 − 12 1/4
3. Simplify 56+1 to 57
57/2 − 12 1/4
4. Convert 12 1/4 to improper fraction
Use this rule: a b/c = (ac+b)/c
57/2 − (12×4+1)/4
5. Simplify 12×4 to 48
57/2 − (48+1)/4
6. Simplify 48+1 to 49
57/2 − 49/4
7. Find the Least Common Denominator (LCD) of 57/2,49/4
Method 1: By Listing Multiples List out all multiples of each denominator, and find the first common one.
2 : 2,4
4 : 4
Therefore, the LCD is 4
Method 2: By Prime Factors List all prime factors of each denominator, and find the union of these primes.
2 : 2
4 : 2,2
Therefore, the LCD is 2×2=4
8. Make the denominators the same as the LCD
57×2)/(2×2) − 49/4
9. Simplify - Denominators are now the same
114/4 − 49/4
10. Join the denominators
(114−49)/4
11. Simplify
65/4
12. Convert to mixed fraction
16 1/4
169.
View the supporting details to answer the following question.
What percent of all the votes did Abbie receive in the Class President election?
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30%
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20%
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15%
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25%
Correct answer: 30%
In order to find the percentage of votes Abbie received, first find the total number of votes.
112 + 96 + 64 + 48 = 320
Now find the percentage of votes Abbie received.
96/320 ÷ 32/32 = 3/10, or 30%.
170.
What is the function of Golgi bodies?
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Storing and releasing proteins
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Making proteins
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Providing energy to the cell
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Serving as a surface for chemical activity
Correct answer: Storing and releasing proteins
The Golgi bodies store and release proteins into the cell. They are responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations.
171.
What kind of tissue is skin?
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Epithelial
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Connective
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Skeletal
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Muscle
Correct answer: Epithelial
Epithelial tissue has two functions. The first is that it covers, such as with skin. The second function is to produce secretions, such as with glandular tissue. It does not have its own blood supply and is frequently found in sheets. This tissue will regenerate easily if it is well-nourished, typically by capillaries located nearby.
172.
View the supporting details to answer the following question.
The passage answers all of the following questions except:
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Did the father put on his seat belt after hearing the information?
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Does wearing a seat belt help prevent injuries?
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Is wearing your seat belt a law in all states?
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How long was the author's road trip with his father?
Correct answer: Did the father put on his seat belt after hearing the information?
Although the last paragraph states that the author's father did not appreciate the information, it does not state if he put on his seat belt or not.
173.
Tiffany is looking at a right triangle, where angle B is identified as being 42 degrees. How many degrees is angle C, if angle A is the 90-degree angle?
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48 degrees
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45 degrees
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52 degrees
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42 degrees
Correct answer: 48 degrees
Every triangle contains 180 degrees. Subtract the degrees of angles A and B from 180 to find the degrees of angle C.
180 - 90 - 42 = 48 degrees
174.
Identify the pronoun in the following sentence.
He ran over the bike with a yellow truck.
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He
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Bike
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Yellow
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Over
Correct answer: He
He ran over the bike with a yellow truck.
A pronoun is a word that takes the place of a noun. In this case, the word he replaces the name of the person who ran over the bike.
In this sentence, bike is a noun, yellow is an adjective, and over is a preposition.
175.
The prefix meta- would be used with a word part to indicate which of the following?
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Beyond, after, or with
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By oneself
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Forward or in favor of
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Back or again
Correct answer: Beyond, after, or with
The prefix meta- would be used with a word part to indicate beyond, after, or with. For example, metaphor means a word or phrase that has a meaning beyond its true meaning (not a literal meaning).
The prefix self- is used to indicate by oneself. The prefix pro- is used to indicate forward or in favor of. The prefix re- is used to indicate back or again.
176.
The compound for sodium bromide is which of the following?
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NaBr
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NaCl
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KCl
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CO2
Correct answer: NaBr
The compound for sodium bromide is NaBr.
NaCl is the compound for sodium chloride. KCl is the compound for potassium chloride. CO2 is the covalent compound for carbon dioxide.
177.
Tyler can weave 4 picnic baskets in 8 hours. On Monday, Tyler received an order for 88 picnic baskets. How long will it take Tyler to weave 88 picnic baskets?
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176 hours
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174 hours
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148 hours
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188 hours
Correct answer: 176 hours
Set up a proportion to find out how long it will take Tyler to weave 88 baskets.
4 baskets/8 hours = 88 baskets/x hours
4/8 = 88/x
Cross multiply to solve.
4x = 88 × 8
4x = 704
x = 704/4
x = 176
178.
Above the critical point, which phases of matter coexist?
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Liquid and gas
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Solid, liquid, and gas
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Solid and gas
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Solid and liquid
Correct answer: Liquid and gas
Above the critical point is where the liquid and gas phases of matter coexist. The critical point is the point on a phase diagram in which the substance is indistinguishable between the liquid and gaseous phases.
The other options are incorrect because only the liquid and gaseous phases coexist above the critical point.
179.
During which stage of mitosis do the chromosomes begin to pull away from their daughters?
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Anaphase
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Telophase
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Metaphase
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Prophase
Correct answer: Anaphase
Mitosis is a four-stage process that creates two identical cells from one original cell.
- Prophase is the first and longest stage of mitosis. In this stage, the chromosomes become visible and the centrioles separate and move to opposite poles of the cell.
- Metaphase is the second stage of mitosis. In this stage, the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere.
- Anaphase is the third stage of mitosis. In this stage, the sister chromatids separate into individual chromosomes and are pulled apart.
- Telophase is the fourth and last stage of mitosis. During this stage, the chromosomes gather at opposite ends of the cell and lose their distinct rod-like shapes. Two new nuclear membranes then form around each of the two regions of DNA and the spindle fibers disappear.
180.
Which type of chemical bond is considered to be the weakest of all bonds?
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Van der Waals force
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Hydrogen bond
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Ionic bond
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Covalent bond
Correct answer: Van der Waals force
A Van der Waals force is a chemical bond that has a weak attraction due to random disturbances in the electron clouds of adjacent atoms; it is also the weakest of all bonds.
A hydrogen bond is a chemical bond that has a weak attraction between polarized molecules. A covalent bond is a chemical bond that shares one or more pairs of electrons between nuclei. An ionic bond is a chemical bond that has a relatively weak attraction between an anion and a cation.