Vocabulary
Sound Wave
Sound and Matter
Mystery - Picture
Mystery - Short Answer
100
The part of a sound wave where the molecules are spread apart.
Rarefaction
100
Which part of the sound wave is the arrow pointing to?
Crest
100
When sound waves are reflected off another surface.
Echo
100
Name one sound that creates more than 70 decibels.
jet airplane OR loud rock band OR noisy factory
100
Frequency determines the _________ of a sound.
Pitch
200
The __________ of sound is the number of wavelengths in a given unit of time.
Frequency
200
Which part of the sound wave is shown in this picture? This determines the volume of the sound.
Amplitude
200
What can't sound travel through outer space?
It is a vacuum. There is no matter for sound waves to travel through.
200
Which one of these is a compression wave?
3
200
The greater the amplitude, the _________ the sound.
Louder
300
The distance from one point on a wave to the same point on the next wave.
Wavelength
300
Which point of the sound wave is the arrow pointing to?
Trough
300
Sound travels fastest through which state of matter?
Solid
300
How many meters per second will sound travel at 20 degrees Celsius?
343 meters per second
300
Describe how this instrument produces sound.
As the bow goes across the strings, it causes vibrations in the cello.
400
When animals use sound in order to locate objects/food.
Echolocation
400
Which part of the sound wave is the arrow pointing to?
Wavelength
400
List an object that would allow sound waves to travel through the fastest.
**Answers may vary. Must be a solid.
400
In which order must the bottles be placed so that the sound changes from a low pitch to a high pitch?
B, A, D, C
400
The faster the vibrations of the particles in a sound wave, the higher the frequency and the ________ the pitch.
Higher
500
Technology that allows boats to use sound in order to figure out how deep the water is beneath them.
Sonar
500
The part of the sound wave where molecules are close together.
Compression
500
Why does sound travel the slowest through gases?
The molecules are spread far apart
500
Draw and label two sound waves. One must have high frequency and one must have low frequency.
High Frequency
Low Frequency
500
What can you use to model a sound wave?
Slinky