Test waves/Particles

Question 1

Describe sound as vibration in particles

Answer 1

As the particles vibrate, they move nearby particles, transmitting the sound further through the medium.

Question 2

Draw and Describe the formation of sound waves as compresions and Rarefactions

Answer 2

Compression happens when molecules are densely packed together. Alternatively, rarefaction happens when molecules are distanced from one another

Question 3

Describe how the aregment of particles affects the speed of sound

Answer 3

The closer the molecules are to each other and the tighter their bonds, the less time it takes for them to pass the sound to each other and the faster sound can trave

Question 4

Explain why sound dosnt travel in vacumes

Answer 4

there are no particles in vacuum to cause vibrations

Question 5

Calculate the speed of sound from appropriate data

Answer 5

v = 331 + ( 0.61 ⋅ T )

Question 6

Calculate the speed of sound from appropriate data

Answer 6

The formula is v = 331 + ( 0.61 ⋅ T ) where v is the speed of sound measured in meters per second (m/s), and T is the temperature in degrees Celsius. As the temperature increases, so does the speed. If the temperature was 20 degrees Celsius, then the speed of sound in dry air would be 343.2 meters per second.

Question 7

Describe and interpret common expirements for measuring speed of sound

Answer 7

ex. Lights flash and at the same time a honk

Question 8

Use db scale to describe the volume of sound

Answer 8

A Db scale is the decibel scale to measure the loudness of sound

Question 9

Distinguish the parts in the human ear

Answer 9

Outer middle and inner

Question 10

Describe how hearing range differs in humans and other species

Answer 10

Animals can hear more Hertz than humans and the younger you are the more hertz you hear

Question 10

Describe how the volume and frequency of sounds affects the amplitude and wavelength

Answer 10

Sound Wave Properties, Amplitude & Frequency | Study.com
The amplitude, or height of the sound wave determines its loudness. The wavelength is the distance between two waves and affects the wave’s frequency. Frequency determines the pitch of the sound. A higher frequency means a higher pitched sound.

Question 11

Describe the formation of a shadow from an opaque object

Answer 11

Shadows are formed when an opaque object or material is placed in the path of rays of light. The opaque material does not let the light pass