Nursing Elites

1. When calculating an object’s acceleration, what must you do?

• A. Divide the change in time by the velocity.
• B. Multiply the velocity by the time.
• C. Find the difference between the time and velocity.
• D. Divide the change in velocity by the change in time.

Correct answer: D

Rationale: When calculating an object's acceleration, you must divide the change in velocity by the change in time. Acceleration is defined as the rate of change of velocity with respect to time. By determining the ratio of the change in velocity to the change in time, you can ascertain how quickly the velocity of an object is changing, thereby finding its acceleration. Choice A is incorrect because acceleration is not calculated by dividing time by velocity. Choice B is incorrect as it describes multiplying velocity by time, which does not yield acceleration. Choice C is incorrect as finding the difference between time and velocity is not a method to calculate acceleration.

2. Which of the following epithelial types is correctly matched with its major function?

• A. Simple squamous epithelium – diffusion
• B. Stratified squamous epithelium – protection
• C. Stratified squamous epithelium – diffusion
• D. Simple columnar epithelium – secretion or absorption

Correct answer: D

Rationale: The correct answer is D. Simple columnar epithelium is indeed primarily responsible for secretion and absorption due to its tall shape and presence of microvilli, which increase surface area for these functions. Simple squamous epithelium is mainly involved in diffusion, allowing for the exchange of gases or nutrients. Stratified squamous epithelium functions more for protection against mechanical stress and pathogens, as it forms a tough, protective barrier due to its many layers.

3. Select the word in the sentence that is not used correctly. The staunch hikers took a torturous downhill path that wound through thick vegetation.

• A. staunch
• B. torturous
• C. wound
• D. vegetation

Correct answer: C

Rationale: In the context of the sentence, the word 'wound' is not used correctly. It should be 'wove' instead of 'wound.' The correct word usage should be: 'The staunch hikers took a torturous downhill path that wove through thick vegetation.' 'Wound' is the past tense of 'wind,' while 'wove' is the past tense of 'weave,' which is the appropriate verb to describe a path navigating through vegetation. Choice A, 'staunch,' Choice B, 'torturous,' and Choice D, 'vegetation,' are all used appropriately in the sentence and do not contain any errors.

4. Select the word that means 'open.'

• A. inverted
• B. patent
• C. convent
• D. converted

Correct answer: B

Rationale: 'Patent' is the correct answer as it means something that is open or unobstructed. Choices A, C, and D do not convey the meaning of 'open.' 'Inverted' means turned inside out or upside down, 'convent' refers to a religious community, and 'converted' means changed into a different form or function.

5. What is the term used when an atom gains one or more electrons?

• A. Cation
• B. Anion
• C. Isotope
• D. Electron

Correct answer: B

Rationale: When an atom gains electrons, it becomes negatively charged and is called an anion. An anion is formed when an atom gains one or more electrons, leading to an excess of negative charge. Choice A, 'Cation,' is incorrect because a cation is formed when an atom loses electrons, resulting in a positively charged ion. Choice C, 'Isotope,' refers to atoms of the same element with different numbers of neutrons and is not related to gaining electrons. Choice D, 'Electron,' is the particle that an atom gains to become an anion, not the term for the atom itself after gaining electrons.

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