soundwaves_worksheetFINAL

Sound Waves Investigation Worksheet Name : Abigail Wang Part 1 Pre-lab Questions 1 . For a wave, describe the relationship between frequency and wavelength . Wavelength, referred to by the scientific symbol λ , is the measure of a wave cycle, while frequency indicates the frequency at which the particles of matter in the medium vibrate when a wave passes through . 2 . List the following mediums in order from fastest to slowest in terms of sound wave speed . Air (20 ° C), Water (20 ° C), Glass, Water (0 ° C), Seawater (20 ° C ( Glass , Seawater ( 20 ° C ) , Water ( 0 ° C ) , Water ( 20 ° C ) , Air ( 20 ° C ( 3 . Explain why the speed of sound is different in air compared to water . The characteristics of the substance that sound travels through affect its speed. Here, we're contrasting the sound speed in air and water . Water is denser than air, which is one reason why sound travels faster in it than in air. Because the particles in denser materials are closer together, sound waves can travel faster due to faster vibration transmission. The difference in sound speed between air and water is mainly caused by the differences in their densities and molecular structures . 4 . Answer the following questions in terms of a wave ’ s frequency, wavelength, amplitude, and energy . a . Describe the characteristics of a high pitch wave . A sound wave with a high frequency is referred to as a high pitch wave. The number of full wave cycles that occur within a specific time interval is known as its frequency. Frequency in the context of sound waves is expressed in hertz or Hz(I do music producing .( b . Describe the characteristics of a high-volume wave . A sound wave with a large amplitude is referred to as a high volume wave. The greatest movement of particles in a medium from their rest positions during the passage of a wave through it is measured as amplitude. A high amplitude in the context of sound waves means the sound is more intense or louder. Because amplitude controls how loud or soft a sound is(velocity of a piano key, for example), when we say a wave has a high volume, we are referring to its amplitude . Part 2 Doppler Effect Investigation 1 . Generate your prediction and record your hypothesis : If the sound source is moving _away from the stationary observer_, then a stationary observer will hear __lower____ pitch . 2 . Collected Data Data Table – Character 1, the observer Selected Pitch Pitch Observations – away from the observer Low note The train's sound source on the platform became less high-pitched as it moved away from the observer. Medium note The sound source on the train platform became higher pitched as the train moved away from the observer. High note The sound source on the train platform got higher pitched as the train moved Unless Otherwise Noted All Content © 2022 Florida Virtual School. FlexPoint Education Cloud™ is a trademark of Florida Virtual School.