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Nursing Elites

ATI TEAS 7

Anatomy

1. Which vitamin is synthesized in the skin upon exposure to sunlight?

Correct answer: A

Rationale: The correct answer is Vitamin D (C). When the skin is exposed to sunlight, a compound in the skin is converted to Vitamin D. Vitamin A (A) is not synthesized in the skin but is found in foods like carrots and sweet potatoes. Vitamin C (B) is not synthesized in the skin either, but is found in citrus fruits and vegetables. Vitamin E (D) is not synthesized in the skin upon sunlight exposure, but is found in nuts and seeds.

2. What is the term for a solution that has a higher concentration of solute compared to another solution?

Correct answer: d

Rationale: A concentrated solution has a higher concentration of solute compared to another solution. The other choices do not accurately describe a concentrated solution.

3. What is the unit of measurement for momentum?

Correct answer: A

Rationale: Momentum is defined as the product of an object's mass and its velocity. The unit of mass is kilograms (kg) and the unit of velocity is meters per second (m/s). Therefore, the unit of momentum is kilogram-meter per second (kg·m/s). By Newton's second law of motion (F = ma), force is measured in Newtons (N), which is equivalent to kg·m/s². Therefore, multiplying the unit of force (N) by the unit of time (s) gives the unit of momentum as Newton-second (N·s).

4. A block slides down a frictionless inclined plane. What determines its final velocity at the bottom?

Correct answer: B

Rationale: In the absence of friction, the final velocity depends only on the gravitational potential energy gained, which is determined by the height difference related to the angle of the incline.

5. What property of matter refers to the amount of space occupied by an object?

Correct answer: b

Rationale: Volume measures the amount of space occupied by an object.

6. What information can be obtained directly from the element's atomic number?

Correct answer: B

Rationale: The atomic number of an element represents the number of protons in the nucleus of an atom. This number determines the element's unique identity and its position on the periodic table. The atomic mass (option A) is not directly determined by the atomic number but is a weighted average of the isotopes of an element. The position on the periodic table (option C) is directly related to the atomic number, as elements are arranged in order of increasing atomic number. The chemical properties of an element (option D) are influenced by the number of protons in the nucleus, which is determined by the atomic number.

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