ATI TEAS 7
ATI TEAS 7 Version 1 Science Questions
Extract:
Question 1 of 5
In a phase diagram, what term is used for a substance held at a temperature and pressure where solid, liquid, and gaseous states of a substance exist simultaneously?
Correct Answer: B
Rationale: The point described in the question is called the triple point. At the triple point, all three phases of a substance (solid, liquid, and gas) coexist in equilibrium. The critical temperature is the highest temperature at which a distinct liquid phase can form, while absolute zero is the lowest possible temperature. The critical point is the point on a phase diagram that represents the highest temperature and pressure at which a distinct liquid and gas phase can coexist. Therefore, the correct answer is the triple point, where all three phases coexist.
Extract:
Question 2 of 5
A group of students performed an experiment to test terminal velocity, which is the greatest speed obtained by a falling object. The students dropped different numbers of coffee filters and measured the resulting terminal velocity. Which of the following conclusions is supported by the data in the following data table?
Correct Answer: D
Rationale: The correct conclusion supported by the data is that heavier objects fall faster than lighter objects. Heavier objects experience a greater gravitational force, causing them to fall faster. This aligns with the concept of terminal velocity, which is the maximum speed a falling object can reach when the force of gravity is balanced by air resistance. Due to the stronger pull of gravity on heavier objects, they can overcome air resistance more effectively and reach terminal velocity faster compared to lighter objects.
Extract:
Question 3 of 5
Which of the following structures is correctly associated with its immune function?
Correct Answer: C
Rationale: The spleen is responsible for filtering blood and removing germs, making option C the correct association of structure and immune function.
Question 4 of 5
Which of the following spinal regions contains the largest number of vertebrae?
Correct Answer: A
Rationale: The thoracic region contains 12 vertebrae, which is more than the 5 lumbar, 7 cervical, and 5 sacral vertebrae.
Extract:
Question 5 of 5
Which of the following is used to determine a person's DNA sequence?
Correct Answer: D
Rationale: Genes are the correct choice for determining a person's DNA sequence. Genes carry genetic information that dictates various traits and characteristics in individuals. A person's unique DNA sequence is determined by the specific arrangement of nucleotides within their genes. Scientists can analyze genes to decode the DNA sequence that represents an individual's genetic composition.