ATI TEAS 7
physics
1. What is the law of conservation of energy?
- A. Energy cannot be created, only destroyed
- B. Energy can be created but not destroyed
- C. Energy can neither be created nor destroyed, only transformed from one form to another
- D. Energy is always created in any process
Correct answer:
Rationale: According to the law of conservation of energy, the total energy in a closed system remains constant; it can change forms but cannot be created or destroyed.
2. Which word best describes the relationship between population growth and smart cities in the passage?
- A. Cause and effect
- B. Analogy
- C. Contrast
- D. Similarity
Correct answer: A
Rationale: The passage identifies rapid population growth as a challenge that smart cities are proposed to address, establishing a causal connection.
3. Which of the following questions is NOT appropriate for scientific investigation?
- A. How can we reduce greenhouse gas emissions?
- B. Is there intelligent life beyond Earth?
- C. What is the meaning of life?
- D. Does free will exist?
Correct answer: C
Rationale: Science deals with observable, measurable phenomena using evidence-based methods. Questions about subjective experiences and abstract concepts like meaning fall outside the realm of scientific inquiry.
4. During normal breathing, which muscle is the primary driver of inhalation by contracting and flattening to increase the volume of the thoracic cavity?
- A. Diaphragm
- B. Intercostal muscles
- C. Abdominal muscles
- D. Pectoral muscles
Correct answer: A
Rationale: The diaphragm is the primary muscle responsible for inhalation during normal breathing. When the diaphragm contracts and flattens, it increases the volume of the thoracic cavity, creating a negative pressure that allows air to rush into the lungs. The intercostal muscles also play a role in expanding the ribcage to assist with inhalation. However, the diaphragm is the main driver of the breathing process by creating the necessary space for the lungs to expand and fill with air.
5. The innate immune system provides:
- A. Nonspecific, immediate defense against pathogens
- B. Specific, long-term immune response through memory cells
- C. Both (a) and (b)
- D. Neither (a) nor (b)
Correct answer: A
Rationale: The correct answer is A: 'Nonspecific, immediate defense against pathogens.' The innate immune system is the body's first line of defense against pathogens and provides a rapid, nonspecific response. It includes physical barriers like the skin, chemical barriers like stomach acid, and cellular responses like inflammation. This system does not involve memory cells or provide long-term immunity, which are characteristics of the adaptive immune system. Therefore, option A accurately describes the function of the innate immune system as a quick and nonspecific defense mechanism.
6. Identify the independent clause in the following sentence: "While the chef prepared dinner, the guests chatted and enjoyed the music."
- A. While the chef prepared dinner
- B. the guests chatted and enjoyed the music
- C. While the chef prepared dinner,
- D. the guests chatted and enjoyed
Correct answer: B
Rationale: An independent clause expresses a complete thought and can stand alone as a sentence.
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