Nursing Elites

1. What happens to the work done on an object when the angle between force and displacement is 90 degrees?

• A. Maximum work is done
• B. No work is done
• C. Minimum work is done
• D. Work is infinite

Correct answer: b

Rationale: When the angle between force and displacement is 90 degrees, the work done on the object is zero.

2. Which of the following is NOT a type of intermolecular force?

• A. Hydrogen bonding
• B. Dipole-dipole interactions
• C. Ionic bonding
• D. London dispersion forces

Correct answer: C

Rationale: Ionic bonding is a type of intramolecular force, holding ions together within an ionic compound. Intermolecular forces are responsible for the interactions between individual molecules.

3. Which group of elements is known for their reactivity and ability to form strong bonds with other elements?

• A. Noble gases
• B. Halogens
• C. Alkali metals
• D. Transition metals

Correct answer: B

Rationale: Rationale: Halogens are a group of elements in the periodic table that are known for their high reactivity and ability to form strong bonds with other elements. They have seven valence electrons, which makes them highly reactive as they only need one more electron to achieve a stable electron configuration. Halogens readily form compounds with other elements by gaining an electron to achieve a full outer shell, resulting in the formation of strong covalent bonds. In contrast, noble gases (option A) are known for their inertness and stable electron configurations, alkali metals (option C) are highly reactive but not as strong bond formers as halogens, and transition metals (option D) are known for their variable oxidation states and ability to form complex ions but are not as reactive as halogens in terms of bond formation.

4. Which property of a substance refers to its ability to be stretched into thin wires without breaking?

• A. Conductivity
• B. Viscosity
• C. Ductility
• D. Malleability

Correct answer: c

Rationale: Ductility is the property that describes a substance's ability to be stretched into thin wires without breaking.

5. Antibiotic resistance in bacteria is an example of:

• A. Convergent evolution
• B. Divergent evolution
• C. Microevolution
• D. Macroevolution

Correct answer: C

Rationale: Rationale: - Convergent evolution (option A) refers to the process by which different species evolve similar traits independently in response to similar environmental pressures. Antibiotic resistance in bacteria does not involve different species evolving similar traits. - Divergent evolution (option B) refers to the process by which two or more related species become more dissimilar over time. Antibiotic resistance in bacteria does not involve related species becoming more dissimilar. - Microevolution (option C) refers to changes in allele frequencies within a population over a relatively short period of time. Antibiotic resistance in bacteria is a classic example of microevolution, where bacteria evolve resistance to antibiotics through the natural selection of pre-existing resistant strains. - Macroevolution (option D) refers to large-scale evolutionary changes that result in the formation of new species or higher taxonomic groups. Antibiotic resistance in bacteria does not involve

6. Identify the interjection in the following sentence: Ouch! I stubbed my toe on the table leg.

• A. table
• B. leg
• C. ouch
• D. stubbed

Correct answer: C

Rationale: Interjections express emotions or sudden feelings. "Ouch" conveys a feeling of pain.

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