ATI TEAS 7
Chemistry
1. Which of the following factors would increase the solubility of a gas in a liquid?
- A. Decreasing temperature
- B. Increasing pressure
- C. Decreasing surface area
- D. Increasing particle size
Correct answer: b
Rationale: Henry's law states that the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid. The other choices would typically decrease solubility.
2. A syringe holds 3ml of liquid. How many syringes are needed to measure 15ml of liquid?
- A. 3
- B. 5
- C. 7
- D. 9
Correct answer: B
Rationale: Divide the total liquid volume (15ml) by the syringe capacity (3ml/syringe) to get 5 syringes.
3. Which of the following conclusions of Ms. Castro about leadership characteristics is TRUE?
- A. There is a high correlation between the communication skills of a leader and the ability to get
- B. A manager is effective when he has the ability to plan well.
- C. Assessment of personal traits is a reliable tool for predicting a manager’s potential.
- D. There is good evidence that certain personal qualities favor success in managerial role.
Correct answer: A
Rationale: The correct answer is A because effective communication skills are essential for a leader to successfully convey ideas, motivate teams, and build relationships. Strong communication skills enable a leader to articulate goals clearly, listen to feedback, and resolve conflicts efficiently. This correlation between communication skills and leadership effectiveness has been well-documented in numerous studies. In contrast, options B, C, and D are not universally true statements about leadership characteristics. While planning skills and personal traits may contribute to effective leadership, they are not as directly linked to leadership success as communication skills. Therefore, option A is the most accurate conclusion about leadership characteristics among the choices provided.
4. 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.
5. A rocket engine expels hot gases backwards. What principle explains the rocket's forward motion?
- A. Newton's first law of motion
- B. Newton's second law of motion
- C. Newton's third law of motion
- D. Law of conservation of energy
Correct answer: C
Rationale: The hot gases expelled backwards exert a force on the rocket in the opposite direction (forward), propelling it upwards according to the action-reaction principle.
6. What is the tough, fibrous tissue that connects bones at joints called?
- A. Cartilage
- B. Ligaments
- C. Tendons
- D. Fascia
Correct answer: B
Rationale: The correct answer is B: Ligaments. Ligaments are the tough, fibrous tissue that connects bones at joints. They provide stability and support to the joints, preventing excessive movement that could result in injury. Cartilage is a smooth, rubbery tissue that covers the ends of bones and cushions joints. Tendons are fibrous cords that attach muscles to bones, allowing for movement. Fascia is a connective tissue that surrounds muscles, groups of muscles, blood vessels, and nerves, providing support and protection. Therefore, in this case, the term that specifically refers to the tissue connecting bones at joints is ligaments.
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