ATI TEAS 7
physics
1. What type of energy does a stretched rubber band possess?
- A. Kinetic energy
- B. Potential energy
- C. Thermal energy
- D. Mechanical energy
Correct answer:
Rationale: When a rubber band is stretched, it stores potential energy due to its position or state.
2. Which of the following is an example of a nonpolar solvent?
- A. Water
- B. Ethanol
- C. Acetone
- D. Hydrochloric acid
Correct answer: B
Rationale: Rationale: - Water (option A) is a polar solvent due to its uneven distribution of charge, with the oxygen atom being partially negative and the hydrogen atoms being partially positive. - Ethanol (option B) is a nonpolar solvent because it has a symmetrical molecular structure that does not result in significant charge separation. - Acetone (option C) is a polar solvent as it contains a carbonyl group that results in a partial negative charge on the oxygen atom. - Hydrochloric acid (option D) is a polar solvent due to the presence of the highly electronegative chlorine atom, which results in a partial negative charge.
3. What is the tone of the following sentence: "The presentation was informative and engaging."
- A. Sarcastic
- B. Neutral
- C. Angry
- D. Confused
Correct answer: B
Rationale: The sentence objectively describes the presentation without expressing any specific emotions.
4. A car brakes to a stop on a level road. Which of the following forces does NOT do work on the car?
- A. The braking force applied by the wheels
- B. The normal force from the road
- C. The gravitational force on the car
- D. The friction force between the tires and the road
Correct answer: B
Rationale: While the other forces do work by changing the car's motion or energy, the normal force acts perpendicular to the motion and doesn't contribute to the car's stopping.
5. Which of the following numbers is a perfect square?
- A. 10
- B. 12
- C. 15
- D. 16
Correct answer: D
Rationale: A perfect square is a number obtained by squaring an integer. 16 is the result of squaring 4 (4 x 4 = 16). The other answer choices are not the product of squaring any whole number.
6. What is the function of the epiglottis?
- A. Produces saliva
- B. Senses taste
- C. Prevents food from entering the windpipe
- D. Filters blood
Correct answer: C
Rationale: Rationale: The epiglottis is a flap of cartilage located at the base of the tongue that covers the opening of the windpipe (trachea) during swallowing to prevent food and liquids from entering the airway. This action ensures that food and liquids are directed to the esophagus and down into the stomach, rather than entering the respiratory system, which could lead to choking or aspiration pneumonia. The other options (A) Produces saliva, (B) Senses taste, and (D) Filters blood are functions of other structures in the body and are not related to the role of the epiglottis.
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