Nursing Elites

1. The energy released during a chemical reaction is called:

• A. Kinetic energy
• B. Potential energy
• C. Heat energy
• D. Exothermic energy

Correct answer: D

Rationale: Exothermic means "outward heat," indicating energy is released during the reaction.

2. Which part of the brain controls balance and coordination?

• A. Cerebellum
• B. Hypothalamus
• C. Occipital lobe
• D. Corpus callosum

Correct answer: A

Rationale: Rationale: The cerebellum is the part of the brain responsible for coordinating voluntary movements, balance, and posture. It receives information from the sensory systems, the spinal cord, and other parts of the brain to regulate motor movements. The hypothalamus is involved in regulating various bodily functions such as temperature, hunger, and thirst. The occipital lobe is primarily responsible for processing visual information. The corpus callosum is a structure that connects the two hemispheres of the brain and facilitates communication between them.

3. A population refers to a group of organisms of the same:

• A. Species living in the same area
• B. Genus competing for resources
• C. Kingdom inhabiting a specific biome
• D. Phylum found throughout the world

Correct answer: A

Rationale: In ecology, a population is a specific group of organisms of the same species living in a particular geographic area at a given time. They share a common gene pool and interact with each other and their environment.

4. How many moles of oxygen are required to completely react with 5 moles of propane (C3H8) in the combustion reaction?

• A. 5 moles
• B. 10 moles
• C. 15 moles
• D. 20 moles

Correct answer: b

Rationale: The balanced equation is C3H8 + 5O2 → 3CO2 + 4H2O, indicating a 5:10 ratio between moles of oxygen and moles of propane.

5. Which of the following statements best describes Newton's first law of motion?

• A. An object in motion tends to stay in motion, and an object at rest tends to stay at rest unless acted upon by an external force.
• B. Force equals mass times acceleration.
• C. For every action, there is an equal and opposite reaction.
• D. The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Correct answer: A

Rationale: Newton's first law of motion, also known as the law of inertia, states that an object in motion will remain in motion, and an object at rest will remain at rest unless acted upon by an external force. This principle highlights the concept of inertia, which is the tendency of objects to resist changes in their state of motion. Option A accurately captures this fundamental aspect of Newton's first law. Options B, C, and D describe Newton's second law, third law, and the relationship between force, acceleration, and mass, respectively.

6. Identify the article in the following sentence: The delicious cake was enjoyed by everyone at the party.

• A. cake
• B. was
• C. the
• D. enjoyed

Correct answer: C

Rationale: : Articles ("a," "an," and "the") indicate specificity of a noun. "The" specifies that there is one particular cake being discussed.

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