ATI TEAS 7
physics
1. How is power related to energy?
- A. Power is the same as energy
- B. Energy is the rate at which work is done
- C. Power is the amount of stored energy
- D. Energy is the rate at which power is transferred
Correct answer: b
Rationale: Energy is related to the amount of work done or the capacity to do work, while power measures the rate at which work is done or energy is transferred.
2. What describes the change in direction of light when it passes through different mediums, such as air and water?
- A. Diffraction
- B. Reflection
- C. Refraction
- D. Dispersion
Correct answer: c
Rationale: Refraction is the bending of light as it passes from one medium to another with different optical densities, causing a change in direction.
3. Which structure in the respiratory system serves as the "windpipe" that conducts air from the larynx to the bronchi?
- A. Trachea
- B. Larynx
- C. Bronchi
- D. Alveoli
Correct answer: A
Rationale: The correct answer is A: Trachea. The trachea, also known as the windpipe, is a tube-like structure in the respiratory system that connects the larynx to the bronchi. It serves as the main airway for the passage of air into and out of the lungs. The larynx is commonly known as the voice box and is responsible for producing sound. The bronchi are the two branches that stem from the trachea and lead to the lungs, where they further divide into smaller airways. The alveoli are tiny air sacs in the lungs where gas exchange occurs. Therefore, the trachea is the correct answer as it directly conducts air from the larynx to the bronchi.
4. What is the term for the number of moles of solute per liter of solution?
- A. Molarity
- B. Molality
- C. Normality
- D. Concentration
Correct answer: A
Rationale: Molarity is defined as the number of moles of solute per liter of solution. The other choices are different concentration units.
5. Which term describes the point where parallel rays of light converge or appear to diverge from after passing through a lens or reflecting off a mirror?
- A. Aperture
- B. Focal length
- C. Refractive index
- D. Lens thickness
Correct answer: B
Rationale: The focal length is the term that describes the point where parallel rays of light converge or appear to diverge from after passing through a lens or reflecting off a mirror. It is a crucial parameter in optics and is used to determine the magnification and image formation in optical systems. The other options (A) Aperture, (C) Refractive index, and (D) Lens thickness are not directly related to the point where parallel rays converge or diverge.
6. The speaker's enthusiasm was contagious. Which word is the noun form of the adjective "enthusiastic"?
- A. enthusiastic
- B. enthusiastically
- C. enthusiasm
- D. enthuse
Correct answer: C
Rationale: Nouns can be formed from adjectives using various suffixes.
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