Nursing Elites

1. A ball is thrown upwards. Which of the following statements is TRUE about its potential energy and kinetic energy at the peak of its trajectory?

• A. Both potential and kinetic energy are zero.
• B. Potential energy is maximum and kinetic energy is minimum.
• C. Potential energy is minimum and kinetic energy is maximum.
• D. Both potential and kinetic energy remain constant.

Correct answer: B

Rationale: At the peak of its trajectory, the ball momentarily stops moving before falling back down. This means its kinetic energy is at a minimum because it has come to a stop. At the same time, its potential energy is at a maximum because it is at the highest point in its trajectory, where it has the most potential to fall and convert that potential energy into kinetic energy as it descends. Choice A is incorrect because at the peak, the ball still has potential energy due to its height. Choice C is incorrect because kinetic energy is at a minimum when the ball is momentarily at rest. Choice D is incorrect because the energy conversion between potential and kinetic energy occurs at different points in the trajectory.

2. What is the building block of DNA?

• A. Amino acid
• B. Nucleotide
• C. Phosphate group
• D. Fatty acid

Correct answer: B

Rationale: - Amino acids are the building blocks of proteins, not DNA. - Nucleotide is the correct building block of DNA. A nucleotide consists of a sugar (deoxyribose in DNA), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). - The option 'C) Phosphate group' is incorrect as it is only part of a nucleotide, not the complete building block of DNA. - Fatty acids are not the building blocks of DNA; they are a type of lipid molecule.

3. What defines an integer?

• A. A whole number (not a fraction or decimal!) that can be positive, negative, or zero
• B. A number with a decimal point
• C. A fraction
• D. A percentage

Correct answer: A

Rationale: An integer is a whole number that can be positive, negative, or zero. It does not include fractions or decimals. Choice B, 'A number with a decimal point,' is incorrect because integers do not have decimal points. Choice C, 'A fraction,' is incorrect because integers are not expressed as ratios of two integers. Choice D, 'A percentage,' is incorrect because integers are not necessarily related to proportions out of 100.

4. Which of the following is a primary source that would be relevant to a biography about Jules Verne?

• A. Articles about Jules Verne written after his death
• B. Reviews of Jules Verne’s works
• C. Film adaptations of Jules Verne’s works
• D. Letters exchanged by Jules Verne and a close friend

Correct answer: D

Rationale: The correct answer is D. Letters exchanged by Jules Verne and a close friend would be a primary source as they were written during his lifetime, providing direct insight into his thoughts and actions. Choices A, B, and C are not primary sources. Articles written after his death, reviews of his works, and film adaptations are considered secondary sources as they are interpretations or analyses based on primary materials.

5. Logan had already forgiven Marianne for telling his secret, and so when he was presented with a chance to treat her in kind, he simply did what he did best—he kept his mouth shut. Which of the words in the sentence above is a past participle?

• A. telling
• B. forgiven
• C. and
• D. treat

Correct answer: B

Rationale: The correct answer is 'forgiven' as it is a past participle. A past participle is used to indicate an action that has already occurred in the past. In this sentence, 'forgiven' describes the state of Logan having forgiven Marianne. Choice A, 'telling', is a present participle, not a past participle, which is used for ongoing or continuous actions. Choice C, 'and', is a conjunction that connects phrases or words. Choice D, 'treat', is a verb in its base form, not a past participle.

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