Nursing Elites

1. Which of the following factors does NOT affect the rate of dissolution of a solute in a solvent?

• A. Temperature
• B. Pressure
• C. Surface area
• D. Particle size

Correct answer: B

Rationale: Pressure does not affect the rate of dissolution of a solute in a solvent. The factors that affect the rate of dissolution include temperature, surface area, and particle size. Temperature generally increases the rate of dissolution by providing more energy for the solute particles to break apart and mix with the solvent. Increasing the surface area of the solute by grinding it into smaller particles or increasing its contact area with the solvent can also speed up dissolution. Similarly, reducing the particle size of the solute can increase the rate of dissolution by providing more surface area for interaction with the solvent. Pressure, however, does not have a significant impact on the dissolution process and is not a factor that influences the rate at which a solute dissolves in a solvent.

2. Which of the following words is a synonym for 'happy'?

• A. Sad
• B. Joyful
• C. Angry
• D. Tired

Correct answer: B

Rationale: The correct answer is 'B: Joyful.' 'Joyful' is a synonym for 'happy' as both words convey feelings of pleasure, contentment, and delight. Choice 'A: Sad' is incorrect as it is an antonym of 'happy,' representing feelings of sorrow or unhappiness. 'Angry' in choice 'C' and 'Tired' in choice 'D' are also incorrect as they represent different emotional states and do not share the same meaning as 'happy.'

3. Which blood vessel carries oxygenated blood back to the heart?

• A. Pulmonary vein
• B. Pulmonary artery
• C. Aorta
• D. Superior vena cava

Correct answer: A

Rationale: The corrected question is asking for a blood vessel that carries oxygenated blood back to the heart. The pulmonary vein is the correct choice as it carries oxygenated blood from the lungs back to the heart during systemic circulation. The pulmonary artery carries deoxygenated blood from the heart to the lungs for oxygenation. The aorta is the main artery that carries oxygenated blood away from the heart to the body. The superior vena cava returns deoxygenated blood from the upper body back to the heart.

4. According to the essay, how were stories first communicated and passed down?

• A. oral tradition
• B. printed books
• C. technology
• D. handwriting

Correct answer: A

Rationale: The essay clearly states that before the invention of the printing press, stories were passed down through oral tradition. The extract mentions, 'For centuries before the invention of the printing press, stories of the world were passed down to generations through oral tradition.' This shows that oral tradition was the primary method of communicating stories before the introduction of printed books. Therefore, the correct answer is 'oral tradition.' Printed books (choice B) were introduced later with the invention of the printing press, as mentioned in the extract. 'Handwriting' (choice D) is not the first way stories were communicated, and 'technology' (choice C) is a broad term that does not specifically refer to the initial method of story communication.

5. What type of energy does an object in motion possess?

• A. Potential energy
• B. Kinetic energy
• C. Thermal energy
• D. Chemical energy

Correct answer: B

Rationale: The correct answer is B. Kinetic energy is the energy possessed by an object in motion. When an object is in motion, it has the ability to do work due to its motion, which is known as kinetic energy. Potential energy, choice A, refers to stored energy that has the potential to do work but is not related to motion. Thermal energy, choice C, is related to the temperature of an object, not its motion. Chemical energy, choice D, is energy stored in the bonds of chemical compounds and is not directly related to an object's motion.

Similar Questions