ATI TEAS 7
Chemistry
1. Which of the following is the smallest part of an element that can still be recognized as that element?
- A. Electron
- B. Proton
- C. Neutron
- D. Atom
Correct answer: D
Rationale: An atom is the smallest unit of matter that retains the chemical properties of an element. It is composed of a nucleus containing protons and neutrons, and electrons that orbit the nucleus. The number of protons in the nucleus determines the atomic number of the element, and the number of neutrons determines the isotope of the element.
2. Define "friction" in terms of opposing motion.
- A. A force that increases motion
- B. A force that accelerates motion
- C. A force that opposes motion
- D. A force that creates motion
Correct answer: c
Rationale: Friction acts opposite to the direction of motion, resisting or slowing down the movement of objects.
3. A blog post criticizes a scientific study due to the author's political views. Is this a valid critique?
- A. Yes, if the author identifies specific flaws in the methodology.
- B. Yes, if the author disagrees with the study's conclusions.
- C. o, scientific evaluation should be based on evidence, not personal beliefs.
- D. No, unless the author has scientific expertise themselves.
Correct answer: C
Rationale: Criticism in science should focus on methodology, data analysis, and evidence, not personal agendas or political opinions.
4. She conducts a 6-month performance review session with a staff member. Which of the
- A. She asks another nurse to attest the session as a witness.
- B. She informs the staff that she may ask another nurse to read the appraisal before the session is
- C. She tells the staff that the session is manager-centered.
- D. The session is private between the two members.
Correct answer: C
Rationale: Option C is the correct answer because telling the staff that the session is manager-centered indicates that the focus will be on the manager's evaluation and feedback rather than promoting a collaborative and transparent review process. This approach can lead to a one-sided assessment and may not foster open communication or growth opportunities for the staff member. Options A and B involve bringing in another nurse, which could potentially compromise the privacy and effectiveness of the performance review. Option D, stating that the session is private between the two members, does not address the issue of the session being manager-centered. Therefore, option C is the most appropriate choice to highlight the importance of a balanced and inclusive performance review process.
5. What is the SI unit of measurement for momentum?
- A. Newton (N)
- B. Kilogram-meter per second (kg·m/s)
- C. Joule (J)
- D. Newton-second (N·s)
Correct answer: b
Rationale: Momentum is measured in kilogram-meter per second (kg·m/s).
6. Which of the following is NOT a function of the integumentary system?
- A. Regulation of body temperature
- B. Protection from pathogens
- C. Synthesis of vitamin D
- D. Production of digestive enzymes
Correct answer: D
Rationale: The correct answer is D: "Production of digestive enzymes." The integumentary system primarily consists of the skin, hair, nails, and glands. Its main functions include regulating body temperature through processes like sweating and shivering, protecting the body from pathogens and external threats, and synthesizing vitamin D when exposed to sunlight. However, the production of digestive enzymes is not a function of the integumentary system. Digestive enzymes are primarily produced by organs such as the pancreas and salivary glands to aid in the breakdown of food in the digestive system, which is separate from the functions of the integumentary system.
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