Vocabulary
This can be heard when objects vibrate.
What is sound?
What happens when an object begins to vibrate?
How is sound produced?
What is how loud or soft a sound is?
What is volume?
How high or low a sound is: ____________.
What is pitch?
Which is a louder sound? drums or a flute?
drums
A series of rarefactions and compressions travelling through a substance.
What is sound wave?
The substance through which the wave travels is called as _______________.
What is medium?
The number of times an object vibrates per second is called as _______________.
What is frequency?
A shorter guitar string vibrates more quickly and makes a _____________ pitch.
high pitch
What is an echo ?
the reflection of sound waves
A quick back and forth movement of an object.
What is vibration?
What causes sound on a guitar?
Vibrations of the strings
What is the best way to make a guitar louder?
Pull the strings harder
A thicker string vibrates more slowly and makes a _______ pitch.
low pitch
Sound waves travel most quickly through
A. wood B. water C. air D. outer space
wood
The process of finding an object by using reflected sound.
What is echolocation?
The transfer of energy when a wave disappears into a surface is called as _________________.
What is absorption?
The best way for a drummer to increase the volume of his or her drumming would be to_____?
Hit the drum with more force
At what volume do sounds start damaging hearing?
85 decibels
The loudness of a sound depends on the sound wave’s A. frequency B. pitch C. amplitude D. density
amplitude
How high or low a sound is?
What is pitch?
It is used under water to find objects.
What is SONAR?
List the following sounds in order from the loudest to softest: bird chirping police siren dog barking
police siren, dog barking, bird chirping
An echo is an example of a sound wave being
reflected
Name a technology similar to sonar is used in medicine
ultrasound