Nursing Elites

1. A block slides down a frictionless inclined plane. What determines its final velocity at the bottom?

• A. The length of the incline
• B. The angle of the incline
• C. The mass of the block
• D. All of the above

Correct answer: B

Rationale: In the absence of friction, the final velocity depends only on the gravitational potential energy gained, which is determined by the height difference related to the angle of the incline.

2. Which of the following is a unit of power?

• A. Newton-meter (N·m)
• B. Joule (J)
• C. Watt (W)
• D. Kilogram (kg)

Correct answer: c

Rationale: Watt is the unit of power, measuring the rate of work done or energy transfer.

3. In nuclear transmutation, a target nucleus is bombarded with a particle to create:

• A. A heavier isotope of the same element
• B. A lighter isotope of the same element
• C. An entirely new element
• D. A chain reaction of nuclear fission

Correct answer: C

Rationale: In nuclear transmutation, a target nucleus is bombarded with a particle to create an entirely new element. During this process, the target nucleus absorbs the incoming particle, resulting in changes to its atomic number and sometimes its mass number. These changes can lead to the creation of a different element altogether. This is a fundamental concept in nuclear chemistry and is used in various applications, including the creation of new isotopes for research or medical purposes. Options A and B are incorrect because transmutation involves creating a different element, not just a heavier or lighter isotope of the same element. Option D, a chain reaction of nuclear fission, is also incorrect as it refers to a different process where a nucleus splits into smaller fragments, releasing energy and more neutrons to sustain the chain reaction.

4. Ms. Valencia develops the standards to be followed. Among the following standards, which is

• A. The patients verbalized satisfaction of the nursing care received
• B. Rotation of duty will be done every four weeks for all patient care personnel.
• C. All patients shall have their weights taken recorded
• D. Patients shall answer the evaluation form before discharge

Correct answer: C

Rationale: The correct answer is C because it is a clear and specific standard that can be easily measured and monitored. Weight recording is a fundamental aspect of patient care and is essential for tracking changes in health status. Verbalized satisfaction (option A) is subjective and may not be consistently measurable. Rotation of duty (option B) is important but may not be a standard developed by a nurse manager. Answering an evaluation form before discharge (option D) is important but may not be a standard created by Ms. Valencia for all patients.

5. Which structure connects the two hemispheres of the brain, allowing communication and coordination between them?

• A. Corpus callosum
• B. Thalamus
• C. Hypothalamus
• D. Medulla oblongata

Correct answer: a

Rationale: The correct answer is A: Corpus callosum. The corpus callosum is a broad band of nerve fibers that connects the left and right hemispheres of the brain, allowing them to communicate and coordinate with each other. It enables the transfer of information between the two hemispheres, which is essential for various functions such as sensory processing, motor coordination, and cognitive processes. The thalamus (B) is a different brain structure responsible for relaying sensory signals to the cerebral cortex, while the hypothalamus (C) regulates various vital functions such as body temperature, hunger, and hormone release. The medulla oblongata (D) is located in the brainstem and controls vital autonomic functions like breathing and heart rate. Therefore, the corpus callosum is the correct answer as it directly connects the two hemispheres of the brain for communication and coordination.

6. You observe that plants in a greenhouse grow faster when exposed to red light compared to blue light. What is the next best step in your investigation?

• A. Increase the intensity of the blue light.
• B. Decrease the intensity of the red light.
• C. Grow plants in complete darkness.
• D. Grow plants exposed to both red and blue light at equal intensities.

Correct answer: D

Rationale: The next best step in the investigation would be to grow plants exposed to both red and blue light at equal intensities. This will help determine if the observed growth difference is due to the specific wavelength of light (red vs. blue) or if it is related to the intensity of light. By exposing plants to both red and blue light at equal intensities, you can compare their growth rates and determine if one wavelength has a greater effect on plant growth.

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