ATI TEAS 7
TEAS 7 science practice questions
1. What is the process of a gas changing into a liquid called?
- A. Evaporation
- B. Boiling
- C. Condensation
- D. Sublimation
Correct answer: C
Rationale: Condensation is the process where gas particles release energy, slow down, and come together to form a liquid. This phase change occurs when the temperature of the gas decreases, causing the particles to lose energy and transition into the liquid state. In condensation, the gas loses heat energy, leading to a decrease in kinetic energy, which allows the particles to come closer together and form a liquid. This transformation is commonly observed when water vapor in the air cools down and turns into liquid water droplets, seen as dew or fog. Evaporation (choice A) is the opposite process where a liquid changes into a gas. Boiling (choice B) is the rapid phase change from liquid to gas that occurs at a specific temperature. Sublimation (choice D) is the direct transition of a substance from the solid phase to the gas phase without passing through the liquid phase.
2. What term describes the maximum displacement of particles from their rest position in a wave?
- A. Frequency
- B. Wavelength
- C. Amplitude
- D. Velocity
Correct answer: C
Rationale: The term that describes the maximum displacement of particles from their rest position in a wave is called the amplitude. Amplitude is a measure of the strength or intensity of a wave and is represented by the height of the wave from the rest position to the crest (or trough) of the wave. Frequency (A) refers to the number of complete wavelengths that pass a point in a given time. Wavelength (B) is the distance between two consecutive crests (or troughs) of a wave. Velocity (D) is the speed of the wave, not the maximum displacement of particles from their rest position.
3. What is the function of the immune system?
- A. To transport oxygen
- B. To fight infection
- C. To digest food
- D. To produce hormones
Correct answer: B
Rationale: The correct answer is B: 'To fight infection.' The immune system's primary function is to protect the body from infections and foreign invaders by recognizing and responding to pathogens. It plays a crucial role in maintaining overall health and preventing diseases caused by harmful microorganisms. Choices A, C, and D are incorrect because the immune system is not responsible for transporting oxygen, digesting food, or producing hormones. These functions are carried out by other systems in the body, such as the respiratory system, digestive system, and endocrine system, respectively.
4. Based upon the contextual evidence provided in the passage above, what is the meaning of the term 'enterprise' in the third paragraph?
- A. Company
- B. Courage
- C. Game
- D. Cause
Correct answer: A
Rationale: 'Enterprise' here refers to a company or organization, particularly one that requires effort and initiative. In the passage, the term 'enterprise' is used in the context of establishing a Mechanic's Institution, emphasizing the involvement and support of the working man in such an organization. Choice B, 'Courage,' is incorrect as the term refers more to determination and initiative in creating and supporting the institution rather than bravery. Choice C, 'Game,' and choice D, 'Cause,' are also incorrect as they do not align with the context provided in the passage.
5. Which of the answer choices gives the best definition of the underlined word in the following sentence? 'Finlay flatly refused to take part in the piano recital, so his parents had to cajole him with the promise of a trip to his favorite toy store.'
- A. Prevent
- B. Threaten
- C. Insist
- D. Coax
Correct answer: D
Rationale: In this context, 'cajole' means to persuade someone by using flattery or promises, which is best represented by 'coax.' 'Prevent' (choice A) means to stop something from happening, 'threaten' (choice B) means to communicate an intention to harm, and 'insist' (choice C) means to demand something forcefully, so these choices do not fit the context of persuading with flattery or promises.
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