Words to Know
define volume
how loud or soft something is (related to vibrations)
What is a peak?
The top of a sound wave
If we are finishing up our investigations on the sound source, what will be investigating next?
sound traveling (B)
A light push on the long stick using the motion detector represents what?
A soft sound
What does it mean when light reflects?
It bounces off of something
define vibrations
movement of an object back and forth past its starting point
What is a valley?
The bottom of a sound wave
What is a sound source?
The place where sound is coming from
A harder push with the long stick using the motion detector represents what?
A louder sound
What does it mean when light transmits?
It goes through something
define pitch
the highness or lowness of a sound
Pitch goes with what?
Frequency
What is a sound receiver?
Place where sound ends up (ex. our ears when we hear something)
If a sound is quiet, what do you know about what the graph will look like?
The amplitude will be low
I can see through my glasses, so they must be ... (transparent, translucent, or opaque)
transparent
define frequency
the number of peaks or valleys in one second
Volume goes with what?
Amplitude
How do instruments resemble the window from the truck video?
They vibrate back and forth like the window did
If a sound is high pitched, what do you know about what the graph will look like?
The frequency will be high
What happens when multiple light inputs enter your eye?
Your brain processes the stronger signal
define amplitude
the distance from the starting point to a peak or valley
A sound wave that has a bigger amplitude has a higher what?
Volume
What do we know so far about how sound can make something move?
Vibrations from the sound source (multiple answers)
Describe the graph of a sound that is low pitched and loud
High amplitude, low frequency (tall sound waves, but very few of them)
what is refraction?