ATI TEAS 7
physics
1. How is power related to time?
- A. Power is inversely proportional to time
- B. Power is directly proportional to time
- C. Power is unrelated to time
- D. Power is the product of time and work
Correct answer: c
Rationale: Power is the rate at which work is done or energy is transferred, and it is not directly linked to time.
2. If 3 nurses can care for 15 patients, how many nurses are needed for 25 patients?
- A. 4
- B. 5
- C. 6
- D. 7
Correct answer: B
Rationale: 3 nurses / 15 patients = x nurses / 25 patients. Solve for x.
3. What is the term for a solution that contains the maximum amount of solute that can dissolve at a specific temperature and pressure?
- A. Saturated solution
- B. Unsaturated solution
- C. Dilute solution
- D. Concentrated solution
Correct answer: A
Rationale: A saturated solution is one in which the maximum amount of solute has dissolved under specific conditions. The other choices do not accurately describe a saturated solution.
4. What kind of lens focuses parallel light rays to a single point?
- A. Concave lens
- B. Convex lens
- C. Cylindrical lens
- D. Plano lens
Correct answer: B
Rationale: Convex lenses (converging lenses) bend incoming light rays inwards, focusing them to a point called the focal point.
5. Which statement correctly describes the concept of ionization energy?
- A. The energy required to remove an electron from an outermost shell.
- B. The energy released when an electron bonds with an atom.
- C. The total energy possessed by all electrons in an atom.
- D. The energy needed to change an atom's nucleus.
Correct answer: A
Rationale: The energy required to remove an electron from an outermost shell. Ionization energy varies depending on the element and electron configuration, indicating its difficulty to lose electrons and influencing its reactivity.
6. What is the name for the tiny particles that make up atoms?
- A. Protons
- B. Electrons
- C. Neutrons
- D. Subatomic particles
Correct answer: D
Rationale: Protons, neutrons, and electrons are all subatomic particles that make up atoms.
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