Nursing Elites

1. The energy released in nuclear fusion originates from:

• A. The fission of heavy nuclei
• B. The binding energy released during the fusion of light nuclei
• C. Electronic transitions within atoms
• D. Matter-antimatter annihilation

Correct answer: B

Rationale: The correct answer is B: 'The binding energy released during the fusion of light nuclei.' Nuclear fusion is the process where light nuclei combine to form a heavier nucleus, releasing energy in the form of binding energy. This energy comes from the conversion of mass into energy as per Einstein's famous equation E=mc^2. In contrast, option A refers to nuclear fission, where heavy nuclei split into lighter nuclei, releasing energy. Option C is related to atomic energy levels, and option D involves the complete conversion of matter into energy, not specific to nuclear fusion. Therefore, the energy released in nuclear fusion originates from the binding energy released during the fusion of light nuclei.

2. Which word best synonyms with the word "elated"?

• A. Angry
• B. Sad
• C. Excited
• D. Confused

Correct answer: C

Rationale: "Elated" and "excited" both convey feelings of happiness and enthusiasm.

3. The large intestine absorbs water and electrolytes from digested food material. What waste product remains after water absorption and is eventually eliminated from the body?

• A. Chyme
• B. Bolus
• C. Glucose
• D. Feces

Correct answer: D

Rationale: The large intestine is responsible for absorbing water and electrolytes from digested food material. As the waste material moves through the large intestine, most of the water is absorbed, leaving behind waste products known as feces. Feces consist of indigestible material, bacteria, and some remaining waste products. This waste is eventually eliminated from the body through the process of defecation. Chyme refers to the semi-fluid mass of partially digested food that moves from the stomach to the small intestine. Bolus is a term used to describe a mass of chewed food ready to be swallowed. Glucose is a simple sugar that is absorbed in the small intestine and used as an energy source. Therefore, the correct answer is D: Feces.

4. Define the term "velocity" in relation to motion.

• A. Speed in a specific direction
• B. Distance traveled in a given time
• C. Rate of change of position
• D. Acceleration due to gravity

Correct answer:

Rationale: Velocity is the rate of change of position concerning direction, unlike speed which only refers to distance traveled per unit time.

5. Which of the following describes a scalar quantity?

• A. Velocity
• B. Acceleration
• C. Force
• D. Speed

Correct answer: d

Rationale: Speed is a scalar quantity as it only indicates how fast an object is moving without any directional information.

6. What is the difference between the atomic number and the mass number of an atom?

• A. The atomic number is the number of protons in the nucleus, while the mass number is the total number of protons and neutrons in the nucleus.
• B. The atomic number is the number of electrons in an atom, while the mass number is the total number of protons and neutrons in the nucleus.
• C. The atomic number is the number of neutrons in the nucleus, while the mass number is the total number of protons and electrons in an atom.
• D. The atomic number is the number of protons and neutrons in the nucleus, while the mass number is the total number of electrons in an atom.

Correct answer: C

Rationale: The atomic number and the mass number are two fundamental properties of an atom. They provide important information about the identity and structure of an element.

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