Nursing Elites

1. What happens to the frequency of a wave when its wavelength is doubled, assuming the speed remains constant?

• A. Frequency remains the same.
• B. Frequency is halved.
• C. Frequency is doubled.
• D. Frequency information is insufficient to determine.

Correct answer: C

Rationale: Since the wave speed is constant, if the wavelength increases, the frequency must decrease to maintain the same energy transfer per unit time.

2. The number of protons in an atom is determined by its:

• A. Atomic mass
• B. Electron configuration
• C. Chemical properties
• D. Atomic number

Correct answer: C

Rationale: Atomic number is a fundamental property of an element and is independent of its mass, electron configuration, or chemical behavior.

3. What is the name of the monthly cycle in females that prepares the body for potential pregnancy?

• A. Ovulation cycle
• B. Menstrual cycle
• C. Implantation cycle
• D. Gestation cycle

Correct answer: B

Rationale: The correct answer is B: Menstrual cycle. The menstrual cycle is the monthly process in females where the lining of the uterus thickens in preparation for a potential pregnancy. If pregnancy does not occur, the lining sheds, resulting in menstruation. Ovulation is a key event within the menstrual cycle where an egg is released from the ovary, typically around the midpoint of the cycle. Implantation refers to the attachment of a fertilized egg to the uterus, which occurs after ovulation and fertilization. Gestation cycle refers to the period of pregnancy from conception to birth. Therefore, the menstrual cycle best describes the monthly process that prepares the body for potential pregnancy.

4. The sentence "The audience was captivated by the speaker's compelling story" implies that the audience:

• A. Was bored and disinterested.
• B. Found the story confusing.
• C. Was completely absorbed and engaged.
• D. Disagreed with the speaker's message.

Correct answer: C

Rationale: "Captivated" suggests the audience was completely held by the speaker's story.

5. The process of splitting a heavy nucleus into smaller nuclei, releasing a vast amount of energy, is called:

• A. Nuclear fusion
• B. Nuclear fission
• C. Radioactive decay
• D. Chain reaction

Correct answer: B

Rationale: Rationale: Nuclear fission is the process of splitting a heavy nucleus into smaller nuclei, releasing a vast amount of energy. This process is commonly used in nuclear power plants and nuclear weapons. A) Nuclear fusion is the process of combining two light nuclei to form a heavier nucleus, releasing energy in the process. This process powers the sun and other stars. C) Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation. D) Chain reaction is a self-sustaining reaction in which the products of one reaction event stimulate further reaction events. This can occur in both nuclear fission and nuclear fusion reactions.

6. Which of the following is NOT a mechanism of evolution?

• A. Natural selection
• B. Genetic drift
• C. Lamarckism
• D. Mutation

Correct answer: C

Rationale: Rationale: A) Natural selection is a mechanism of evolution where individuals with advantageous traits are more likely to survive and reproduce, passing on those traits to the next generation. B) Genetic drift is a mechanism of evolution that occurs due to random changes in allele frequencies in a population. C) Lamarckism, also known as the inheritance of acquired characteristics, is a discredited theory that suggests organisms can pass on traits acquired during their lifetime to their offspring. This mechanism has been largely rejected by the scientific community. D) Mutation is a mechanism of evolution that introduces new genetic variation into a population, which can lead to the emergence of new traits and adaptations over time.

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