ATI TEAS 7
Physics
1. A prism separates white light into its constituent spectral components because:
- A. It absorbs certain colors
- B. Different colors experience varying speeds within the prism
- C. It bends all colors with the same magnitude
- D. It reflects specific colors
Correct answer: B
Rationale: The correct answer is B because different colors experience varying speeds when passing through a prism due to their differing wavelengths. This causes them to refract at different angles, resulting in the separation of white light into its constituent spectral components. The phenomenon of dispersion occurs as a result of this wavelength-dependent refraction, allowing us to see the full spectrum of colors. Absorbing certain colors (option A) or reflecting specific colors (option D) would not explain how a prism separates white light. Additionally, if a prism were to bend all colors with the same magnitude (option C), it would not result in the distinct separation of colors that we observe.
2. Which sentence uses the subjunctive mood correctly?
- A. I wish I could have gone to the beach.
- B. If I were you, I would choose option B.
- C. He insisted that she stay home.
- D. Although it was raining, we decided to go for a walk.
Correct answer: A
Rationale: Option A expresses a wish or hypothetical situation, requiring the subjunctive mood.
3. What is the correct way to write "25th anniversary" as a word?
- A. Twenty-fiveth anniversary
- B. Twenty Fiveth Anniversary
- C. Twenty fifth anniversary
- D. twenty-fifth anniversary
Correct answer: D
Rationale: Ordinals (numbers with "th", "st", "nd", etc.) are generally written as words when used before nouns. Option (d) is correct.
4. Why are isotopes of the same element chemically similar?
- A. They have the same number of protons.
- B. They have the same number of electrons.
- C. Their chemical properties are identical.
- D. They share the same electron configuration.
Correct answer: A
Rationale: They have the same number of protons. This determines the element's identity and its interactions with other elements, leading to similar chemical behavior, even if the number of neutrons differs.
5. A child's toy block is a cube with side lengths of 5cm. What is its total surface area?
- A. 25 sq cm
- B. 50 sq cm
- C. 125 sq
- D. 150 sq cm
Correct answer: D
Rationale: Use the formula for surface area of a cube: 6 * (side length)^2 = 6 * (5cm)^2 = 125 sq cm.
6. The following are basic steps in the controlling process of the department. Which of the
- A. Measure actual performance
- B. Set nursing standards and criteria
- C. Compare results of performance to standards and objectives
- D. Identify possible courses of action
Correct answer: A
Rationale: The correct answer is A: 'Measure actual performance.' In the controlling process of a department, measuring actual performance is a crucial step to assess how well the department is performing compared to set standards and objectives. By measuring actual performance, managers can identify any deviations from the established criteria and take necessary corrective actions. Setting nursing standards and criteria (option B) is typically done before the controlling process begins, to provide a benchmark for measuring performance. Comparing results of performance to standards and objectives (option C) is done after measuring actual performance. Identifying possible courses of action (option D) is part of the corrective action phase that follows measuring actual performance. Therefore, option A is the most appropriate step in the controlling process of a department.
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