Nursing Elites

1. What happens to the potential energy of an object as it falls freely near the Earth's surface?

• A. Potential energy decreases
• B. Potential energy increases
• C. Potential energy remains constant
• D. Potential energy becomes zero

Correct answer: A

Rationale: As an object falls freely near the Earth's surface, its potential energy decreases. This decrease occurs because the gravitational potential energy is being converted into kinetic energy as the object accelerates due to gravity. According to the law of conservation of energy, the total mechanical energy (the sum of potential and kinetic energy) remains constant in the absence of non-conservative forces like air resistance. Choice B ('Potential energy increases') is incorrect because the object's potential energy is being converted into kinetic energy, leading to a decrease. Choice C ('Potential energy remains constant') is incorrect as the conversion of potential energy to kinetic energy results in a decrease in potential energy. Choice D ('Potential energy becomes zero') is incorrect because potential energy is not reduced to zero but is transformed into kinetic energy as the object falls.

2. Which metric prefix represents 10^-2?

• A. centi
• B. milli
• C. nano
• D. deci

Correct answer: A

Rationale: The metric prefix 'centi-' signifies 10^-2, denoting one-hundredth of a unit. For instance, 1 centimeter equals 0.01 of the base unit. Choice B, 'milli,' represents 10^-3, 'nano' in Choice C represents 10^-9, and 'deci' in Choice D stands for 10^-1. Therefore, the correct answer is 'centi.'

3. What is the bottom number in a blood pressure reading?

• A. Diastolic pressure
• B. Systolic pressure
• C. Pulse rate
• D. Mean arterial pressure

Correct answer: A

Rationale: The correct answer is A: Diastolic pressure. The bottom number in a blood pressure reading represents the diastolic pressure, which indicates the lowest pressure in the arteries when the heart is resting between beats. This value is important in understanding the overall health of the cardiovascular system. Choice B, Systolic pressure, is the top number in a blood pressure reading and represents the pressure in the arteries when the heart is contracting. Choice C, Pulse rate, refers to the number of times the heart beats in a minute. Choice D, Mean arterial pressure, is a calculated value using both systolic and diastolic pressures to provide an average pressure in the arteries during a cardiac cycle, but it is not the bottom number in a blood pressure reading.

4. Which of these cinemas does not have a suitable option for Thomas and his sister?

• A. Twin Theatres
• B. Reveler Cinema
• C. Big Screen 14
• D. Best Seat in The House

Correct answer: A

Rationale: Only Twin Theatres does not offer a showing before 6 p.m. or after 10 p.m., which are the only times Thomas and his sister are available. The other cinemas - Reveler Cinema, Big Screen 14, and Best Seat in The House - have showings that fall within their available time slots, making them viable options for Thomas and his sister. Therefore, Twin Theatres is the correct answer. Reveler Cinema has showings at 5:45 p.m. and 7:15 p.m., Big Screen 14 has showings at 6:00 p.m., 6:45 p.m., 9:10 p.m., and 10:05 p.m., and Best Seat in The House has showings at 8:20 p.m., 9:55 p.m., and 11:25 p.m.

5. Which of the following bones is not part of the appendicular skeleton?

• A. skull
• B. clavicle
• C. scapula
• D. pelvic bone

Correct answer: A

Rationale: The correct answer is A, 'skull.' The skull is part of the axial skeleton, not the appendicular skeleton. The axial skeleton, which includes the skull, vertebrae, and ribs, is located down the center of the body and protects vital organs such as the brain and heart. On the other hand, the appendicular skeleton consists of bones of the arms, legs, and the bones that attach these limbs to the axial skeleton. Choices B, C, and D (clavicle, scapula, pelvic bone) are part of the appendicular skeleton as they form the bones of the limbs and girdles that connect the limbs to the axial skeleton.

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