Lesson #1
This type of wave:
(Look at picture teacher will show you)
What is a Transverse Wave?
How High or low a sound is.
What is Pitch?
The loudness of a sound is related to this measurement of the wave.
What is amplitude?
The five ways a sound wave can react when it reaches on object.
What are reflect, transmit, absorb, diffract, refract?
This part of the human ear which is a tough, tightly stretch membrane.
(look at image and point to location and give answer)
What is the ear drum?
(Look at picture teacher will show you)
What is a compressional wave?
The pitch of a sound wave is determined by this.
What is frequency?
This arrow indicates the amplitude of a wave.
(look at the picture and point to the arrow)
What is the Orange arrow?
Sound waves travel faster through solids than air.
(this is a true/false answer)
What is true?
Connects the ear to the rearmost part of the throat. Equalizes the air pressure on both sides of the eardrum.
(point to the location on the diagram and give answer)
This measurement on this wave.
(Look at what the arrow is pointing to on the pictures of the wave)
What is wavelength?
Pitch and Loudness are the same thing.
(hint this is a true or false question)
What is False?
The most common unit use to measure loudness.
What is a decibel?
This happens in a space less than 56 feet and sound waves are reflected too quickly for your brain to distinguish.
What is reverberation?
The nerve that sends messages about sounds to the brain.
(point to location on image and give answer)
What is the Auditory Nerve?
Rapid back and forth movements in matter.
What are vibrations?
The range the human ear can hear sound.
What is between 20hz and 20000Hz?
The softest sound humans can hear is 0dB.
What is the Threshold of Hearing?
This is why we can hear someone talking outside the room around the corner.
What is diffraction?
This is where ear wax can be found.
(point to location on image and give answer)
What is the ear canal?
The name of this part of a compressional wave.
(Look at what the arrow is pointing to in the picture)
What is a rarefaction?
This sound will have a higher pitch.
(look at the picture and choose the wave with the higher pitch)
What is the green wave?
Sound that is annoying, causes pain, or damages the ears.
What is noise pollution?
This is what a bat or marine animals use to locate objects when sight is difficult.
What is echolocation?
The organ of equilibrium (balance) in the human body.
(point to location on image and give the answer)
What are the semi-circular canals?