Vocabulary
a type of energy that you can hear
sound
Low pitch waves are closer together or farther apart?
farther apart
On a xylophone, does the shorter bar or the longer bar have a higher pitch?
shorter bar
How do we observe sound?
Hearing/listening
What causes sound?
Vibrations
how high or low a sound is
pitch
high pitch = __________ frequency
high
If a piano tuner tightens the strings of a piano, the pitch will be ______________.
Higher
Sound travels fastest through __________. (solids, liquids, or gases).
solids
The number of vibrations per second
Frequency
how loud or soft a sound is
volume
low pitch = _________ frequency
low
Thicker strings on instruments vibrate more slowly, so they make a ______________ pitch sound.
Low
When sound waves bounce back and forth off objects
Echo
The distance between the waves in a sound wave
Wavelength
the quick back and forth movement that produces a sound
vibration
Do high pitch waves have longer wavelengths or shorter wavelengths?
shorter
Caroline tapped a glass filled with water. What could she do to the water to raise the pitch?
Pour water out of the glass
The highest pitch is made by the (largest or smallest) instrument?
smallest
A longer string will make a __________ pitch than a shorter string.
Lower
vibration that carries the sound through matter
sound wave
What are 2 things that can change the pitch of a sound?
thick/thin, tight/loose, etc.
You stretch a rubber band and pluck it and it makes a sound. You then pull the rubber band tighter and pluck it again. What will happen to the pitch?
It will get higher
Describe sound using the example of a rock dropping in a bowl of water.
The rock dropping = vibration
The ripples = sound waves
To make a sound from a stringed instrument louder, you must .....
hit it harder