HESI A2 Exam V1 With A&P questions & answers 100% correct/verified answers latest update graded A+ Real exam 2023/2024 update

HESI A2 Exam V1 With A&P questions & answers 100% correct/verified answers latest update graded A+ Real exam 2023/2024 update HESI A2 VERSION 1 READING COMPEHENSIO N Doppler Effect HESI A2 Exam V1 With A&P questions & answers 100% correct/verified answers latest update graded A+ Have you ever wondered why the whistle of a traveling, distant locomotive predicts its approachseveral yards before anyone actually sees it? Or why an oncoming ambulance’s screaming sirenis heard momentarily several feet before the ambulance comes into full view, before it passes you, and why its siren is still heard faintly well after the ambulance is out of sight? What you are witnessing is a scientific phenomenon known as the Doppler Effect. What takes place is truly remarkable. In both of these instances, when the train or ambulance moves towardthe sound waves in front of it, the sound waves are pulled closer together and have a higher frequency. In either instance, the listener positioned in front of the moving object hears a higherpitch. The ambulance and locomotive are progressively moving away from the sound waves behind them, causing the waves to be farther apart and to have a lower frequency. These fastapproaching modes of transportation distance themselves past the listener, who hears a lower pitch. 1. Which statement is not listed as a detail in the passage? A. The oncoming sound waves have a higher pitch because of high frequency and closenessof waves. B. The oncoming sound waves have a higher pitch because of low frequency and closenessof waves. C. The whistling sound of the locomotive as it approaches and passes can be explained bythe Doppler effect. D. The high-pitched sound of the ambulance as it approaches and passes can be explainedby the Doppler effect. HESI A2 Exam V1 With A&P questions & answers 100% correct/verified answers latest update graded A+ 2. What is the author’s primary purpose in writing this essay? A. To entertain the reader with information about trains and ambulances B. To inform the reader about avoiding accidents, which involve trains and ambulances C. To inform the reader about how movement affects sound D. To analyze the difference between train and ambulance sounds 3. What is the main idea of the passage? A. Trains and ambulances make distinctly loud noises. B. Low-frequency waves make high-pitched sounds. C. High-frequency waves make low-pitched sounds. D. The Doppler Effect explains the rationale for why sound is heard initially more stronglyand then faintly after a moving object has passed. 4. What is the meaning of the word phenomenon in the second paragraph