ATI TEAS 7
TEAS 7 science practice questions
1. What is the relationship between force and acceleration according to Newton's second law?
- A. Force is directly proportional to acceleration
- B. Force is inversely proportional to acceleration
- C. Force has no relation to acceleration
- D. Force causes deceleration, not acceleration
Correct answer: A
Rationale: According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This relationship is mathematically expressed as F = ma, where F represents force, m represents mass, and a represents acceleration. Therefore, an increase in force will result in a proportional increase in acceleration, supporting the statement that force is directly proportional to acceleration. Choice B is incorrect as it suggests an inverse relationship, which is not consistent with Newton's second law. Choice C is incorrect because force and acceleration are indeed related as per Newton's second law. Choice D is incorrect as force can cause acceleration or deceleration depending on the direction of the force relative to the motion of the object, but it does not exclusively cause deceleration.
2. What is the term for the energy released during a chemical reaction?
- A. Kinetic energy
- B. Potential energy
- C. Heat energy
- D. Exothermic energy
Correct answer: D
Rationale: The correct answer is 'Exothermic energy.' During an exothermic reaction, energy is released in the form of heat. The term 'exothermic' signifies that energy is moving outward, typically in the form of heat, throughout the reaction, leading to a decrease in the system's internal energy. Choice A, 'Kinetic energy,' refers to the energy of motion and is not specifically related to chemical reactions. Choice B, 'Potential energy,' is the energy stored within an object due to its position or state and is not directly related to energy released in a chemical reaction. Choice C, 'Heat energy,' is a form of energy but does not specifically describe the energy released during a chemical reaction.
3. What is the largest part of the brain and is responsible for higher functions like thinking, memory, and learning?
- A. Brainstem
- B. Cerebellum
- C. Cerebrum
- D. Thalamus
Correct answer: C
Rationale: The cerebrum is the correct answer. It is the largest part of the brain and is responsible for higher functions like thinking, memory, and learning. The brainstem (option A) is responsible for basic life functions such as breathing and heart rate, not higher cognitive functions. The cerebellum (option B) is responsible for coordination and balance, not higher cognitive functions. The thalamus (option D) acts as a relay station for sensory information, but it is not the largest part of the brain nor responsible for higher cognitive functions.
4. Which of the following is an example of a nosocomial infection?
- A. The common cold contracted from a family member
- B. A urinary tract infection (UTI) acquired during a catheterization
- C. A fungal skin infection from contaminated soil
- D. Food poisoning from undercooked chicken
Correct answer: B
Rationale: A nosocomial infection, also known as a healthcare-associated infection (HAI), is an infection that is acquired in a healthcare setting. In this case, a UTI acquired during a catheterization procedure is a classic example of a nosocomial infection. Catheterization involves the insertion of a tube into the urinary tract, which can introduce bacteria into the urinary system and lead to an infection. Nosocomial infections are a significant concern in healthcare settings due to the potential for increased morbidity, mortality, and healthcare costs. Let's review the other options: A) The common cold contracted from a family member - This is not a nosocomial infection as it is acquired outside of a healthcare setting. C) A fungal skin infection from contaminated soil - This is not a nosocomial infection as it is acquired from environmental exposure, not in a healthcare setting.
5. What is the term for the process of bone formation and breakdown?
- A. Ossification
- B. Resorption
- C. Remodeling
- D. All of the above
Correct answer: C
Rationale: The correct term for the process of bone formation and breakdown is remodeling. Ossification specifically refers to bone formation, while resorption pertains to bone breakdown. Remodeling encompasses both processes, as it involves the continuous cycle of bone formation and resorption to maintain bone strength and structure. Choice A, 'Ossification,' is incorrect as it only refers to bone formation. Choice B, 'Resorption,' is incorrect as it only refers to bone breakdown. Choice D, 'All of the above,' is incorrect as it includes terms that are not comprehensive of both bone formation and breakdown.
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