ATI TEAS 7
TEAS version 7 quizlet science
1. What is the formula to calculate gravitational potential energy near the Earth's surface?
- A. Potential Energy = Mass × Acceleration
- B. Potential Energy = Force × Distance
- C. Potential Energy = Mass × Height × Gravity
- D. Potential Energy = Mass × Acceleration due to gravity × Height
Correct answer: D
Rationale: The correct formula to calculate gravitational potential energy near the Earth's surface is Potential Energy = Mass × Acceleration due to gravity × Height. This formula considers the mass of the object, the specific acceleration due to gravity near the Earth's surface (approximately 9.81 m/s^2), and the vertical distance from the reference point. Choice A is incorrect as it does not include height in the formula. Choice B is incorrect as it involves force instead of acceleration due to gravity. Choice C is incorrect as it multiplies mass, height, and gravity, missing the actual acceleration due to gravity term.
2. What is the medical term for a urinary tract infection (UTI)?
- A. Nephritis
- B. Cystitis
- C. Urethritis
- D. All of the above
Correct answer: B
Rationale: The medical term specifically used to refer to a urinary tract infection (UTI) that affects the bladder is cystitis. Nephritis refers to inflammation of the kidneys, and urethritis refers to inflammation of the urethra. As such, cystitis is the correct term for a UTI, making choice B the right answer. Choices A, C, and D are incorrect because they refer to different conditions affecting the urinary system.
3. An atom has 17 protons, 20 neutrons, and 17 electrons. What is its mass, in amu?
- A. 17
- B. 20
- C. 37
- D. 54
Correct answer: C
Rationale: The atomic mass of an atom is the sum of the protons and neutrons in its nucleus. In this case, the atom has 17 protons and 20 neutrons, totaling 37 particles in the nucleus. Electrons are not considered in the atomic mass calculation as their mass is negligible compared to protons and neutrons. Therefore, the mass of the atom in atomic mass units (amu) is 37.
4. Which of the following is a weak acid commonly found in citrus fruits?
- A. Sulfuric acid (H₂SO₄)
- B. Hydrochloric acid (HCl)
- C. Citric acid
- D. Nitric acid (HNO₃)
Correct answer: C
Rationale: Citric acid is a weak acid commonly found in citrus fruits like lemons, oranges, and limes. It is responsible for the sour taste in these fruits. Sulfuric acid (option A), hydrochloric acid (option B), and nitric acid (option D) are all strong acids that are typically used in laboratory settings and industrial processes, not naturally found in citrus fruits. Therefore, the correct answer is option C.
5. Which part of the digestive system is responsible for absorbing nutrients?
- A. Esophagus
- B. Stomach
- C. Small intestine
- D. Large intestine
Correct answer: C
Rationale: The small intestine is the correct answer because it is the primary site for nutrient absorption in the digestive system. It contains specialized structures such as villi and microvilli that maximize the absorption of nutrients from digested food. The esophagus is responsible for transporting food from the mouth to the stomach; the stomach primarily aids in digestion by secreting enzymes and acids; and the large intestine mainly absorbs water and electrolytes from the remaining indigestible food matter. Therefore, the small intestine plays a crucial role in absorbing essential nutrients for the body's functions, making it the correct choice in this context.
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