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ATI TEAS 7

physics

1. What is the unit of measurement for momentum?

Correct answer: A

Rationale: Momentum is defined as the product of an object's mass and its velocity. The unit of mass is kilograms (kg) and the unit of velocity is meters per second (m/s). Therefore, the unit of momentum is kilogram-meter per second (kg·m/s). By Newton's second law of motion (F = ma), force is measured in Newtons (N), which is equivalent to kg·m/s². Therefore, multiplying the unit of force (N) by the unit of time (s) gives the unit of momentum as Newton-second (N·s).

2. Which of the following questions is NOT appropriate for scientific investigation?

Correct answer: C

Rationale: Science deals with observable, measurable phenomena using evidence-based methods. Questions about subjective experiences and abstract concepts like meaning fall outside the realm of scientific inquiry.

3. What does "voice" refer to in writing style?

Correct answer: B

Rationale: Voice encompasses the author's personality, tone, and overall approach to crafting the written message.

4. Which of the following is a pair of nerves that originates from the brain?

Correct answer: B

Rationale: The correct answer is B, Olfactory nerves, because they are a pair of cranial nerves that originate from the brain and are responsible for the sense of smell. Spinal nerves (option A) originate from the spinal cord, not the brain. The sciatic nerve (option C) is a large nerve that runs from the lower back down the back of each leg and also originates from the spinal cord, not the brain. The optic nerve (option D) is a cranial nerve that connects the eye to the brain, but it is not a pair of nerves that originates from the brain. Therefore, the olfactory nerves are the only pair of nerves listed that specifically originate from the brain.

5. You need to fill a rectangular swimming pool with dimensions 10 meters by 5 meters and a depth of 2 meters. How many cubic meters of water does it take to fill the pool?

Correct answer: C

Rationale: Simply multiply the pool's dimensions to find its volume.

6. What is the name for the change in enthalpy (heat) associated with a chemical reaction at constant pressure?

Correct answer: D

Rationale: The correct answer is D, Heat of reaction. The heat of reaction, also known as the enthalpy change, is the amount of heat absorbed or released during a chemical reaction at constant pressure. Entropy (A) is a measure of the disorder or randomness of a system. Enthalpy (B) is the total heat content of a system. Gibbs free energy (C) is a measure of the energy available to do work in a system at constant temperature and pressure.

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