Sound Formative Assessment u u u Each student

Sound Formative Assessment u u u Each student should use a different color to write. Settle disputes as a group (dice are available if needed). Stay focused (or this may turn into a summative assessment). Not all of this material was covered this year. A prize may be awarded to the student with the highest score per group. Be fair and have fun. Pathway to the Quiz ->Computer ->Students ->Abraham ->Science Class ->Sound and Waves Review

Sound and Waves Review

What is sound? Sound is a form of energy.

What are two ways we know sound is energy? 1. Sound can do work. 2. Sound can be changed to and from different forms of energy.

What is it called when the same type of energy travels from place to place or object to object? An Energy Transfer is when the same type of energy travels from place to place or object to object.

What is it called when energy changes from one form to another? An Energy Transformation is when energy changes from one form to another.

What makes or produces sound? Vibrations make sound.

How does sound travel? Sound travels in waves.

What is the top part of a wave called? The top part of a wave is the crest.

What is the bottom part of a wave called? The bottom part of a wave is the trough.

What do we call the part from one crest to the next crest? The wavelength is the distance from one crest to the next or one trough to the next.

What do we call the distance from the middle to the top? The distance from the middle of the wave to the crest is called the amplitude.

What is the number of waves per second? The number of waves per second is called the frequency.

What unit of measurement do we use for frequency? We measure frequency in Hertz (Hz). (1 Hz = 1 wave per second)

What are the scrunched up parts of a sound wave? The scrunched up parts of a sound wave are the compressions.

What are the spread out parts of a sound wave? The spread out parts of a sound wave are called rarefactions.

What do we call the material that the sound waves travel through? The material that a wave travels through is called the medium.

What is the relationship between the medium and the speed of sound? The more dense (solid) the medium the better and faster sound travels through.

What two things happen to sound energy as it leaves the source? As sound leaves the source the sound gets weaker (quieter) and spreads out in all directions.

What part of the sound wave determines the volume (intensity) of sound? The amplitude of the wave determines the volume.

What is the relationship between amplitude and volume? The larger the amplitude, the louder the sound (higher volume).

What unit of measurement do we use to find the volume (intensity) of sound? Decibels (d. B) is the unit of measurement that we use to measure volume.

You should think about ear protection if the decibel level is _____ or above. 90 d. B

What part of the sound wave determines the pitch of the sound? The frequency of a wave determines the pitch of the sound.

What is the relationship between frequency and pitch? The higher the frequency (more waves per second) the higher the pitch.

Do waves with larger or smaller wavelengths have more energy? Smaller waves have more energy.

What is produced when sound bounces off something and comes back. An echo is produced when sound bounces back.

Sound with a very distinct pattern is called ______. Music

A tool that turns sound into a visual display of a waves is called an ______. Oscilloscope

What process bounces sound waves off a baby to “see” an image. Ultrasound allows us to “see” a baby by bouncing sound waves back.

What is it called when dolphins and bats send out sounds to use to navigate. Echolocation is when dolphins and bats send out sounds and listen for echoes as a means of navigating.

What is it called when submarines send out sound waves to navigate. Submarines and boats bounce sound off objects in a process called sonar.

What is the word that means to re-sound or sound again? Resonance

What is the structure that funnels sound into your ear? Ear flap, Pinna or Auricle

What part of the ear is the sound funneled into? Ear Canal

What part of your ear vibrates first? Eardrum

What are three bones of your middle ear? Hammer, Anvil, Stirrup Malleus, Incus, Stapes

What is the snail shaped part of your ear? Cochlea

What is inside the cochlea? A fluid and tiny little nerve hairs are in the cochlea.

How is the sound sent to the brain? The auditory nerve transforms the sound energy into electrical energy and sends the energy to the brain.

What is the semi-circular canal responsible for? The semi-circular canal is responsible for balance.

What is the Eustachian tube? The Eustachian tube is the part of the ear that connects to the other parts of the head.

That was your Sound Quiz!!!!!