The distance from the middle of one compression to the middle of the next.
64
The distance from the middle of one compression to the middle of the next
-
Upload
gwendoline-carpenter -
Category
Documents
-
view
234 -
download
0
Transcript of The distance from the middle of one compression to the middle of the next.
The distance from the middle of one compression to the middle of the next
Wavelength
The sound of a large bell is (lower/higher) than the sound of
a small bell
LOWER
• Bigger bell vibrates slower = lower pitch
place where the air molecules are pressed
together
compression
Percussion instruments played by ______________
HITTING
between the compressions, the
molecules spread apart
Rarefaction/expansion
To move rapidly back and forth
vibrate
The pitch will be lower if the tension of the string
(increases/decreases)
DECREASE
• If the string is looser(decrease in tension), it will vibrate slower = lower pitch
how high or low sound,
pitch
A wave that carries sound energy
Longitudinal Wave
A material through which a wave travels
medium
Long strings have (higher/lower) pitch than short ones
LOWER
• Longer strings vibrate slower = lower pitch
Unit of measure for loudness of sound
DECIBELS
The distance that a vibrating object moves as
it vibrates
amplitude
the number of vibrations(sound waves)
per second
Wave Frequency
form of energy produced by a vibrating object
sound
low pitch means _______frequency
low
the height of the sound wave
amplitude
Sound energy travels (inward or outward) from a
vibrating object
outward
Sound travels faster through ________ (solid, liquid, or gas)
solid
Height or distance of a sound wave
amplitude
Opposite of compression
rarefaction
A measurement of the loudness of sound
DECIBEL
The higher the amplitude, the ________ the sound
louder
sound waves are ________ waves
longitudinal
How high or low a sound is
pitch
The more energy you put into an instrument, the _________ the
sound
louder
Low frequency, ________ pitch
low
Sound is made when something ___________
vibrates
How many wavelengths?
3
Which diagram has a higher pitch?
The diagram on the left – if has a higher frequency (more wavelengths per second)
Which if louder?
The diagram on the right has a higher amplitude which means it
has a louder sound.
Write what type of wave – blue and red waves
Label the parts of the waves
Wavelength
Crest
