sound Flashcards
What property of a sound wave corresponds to its loudness?
Amplitude
The larger the amplitude, the louder the sound.
What property of a sound wave corresponds to its pitch?
Frequency
The higher the frequency, the higher the pitch of the sound.
What type of wave is sound?
Longitudinal wave
Sound is also a mechanical wave.
True or False: Sound can travel through a vacuum.
False
Sound needs a medium to travel.
In which medium does sound travel the fastest?
Solid
Sound wave speed is higher in solids due to closer particle arrangement.
What effect does temperature have on the speed of sound?
Sound travels faster in warmer temperatures
Particles move faster in warmer temperatures, facilitating vibrations.
What is the relationship between amplitude and energy in a wave?
The larger the amplitude, the more energy in the wave.
How is loudness measured?
In decibels (dB).
What is frequency measured in?
Hertz (Hz).
What happens to the energy of waves as frequency increases?
Higher frequency waves have higher energy.
Fill in the blank: The tendency of a system to vibrate at maximum amplitude at certain frequencies is called _______.
Resonance.
True or False: One violin playing is as loud as two playing the exact same notes.
False
Two violins increase the intensity and volume of sound.
What is the amplitude of sound?
The distance from the rest point to the crest or trough.
What is the relationship between amplitude and volume of sound?
The larger the amplitude, the louder the sound.
What is a mechanical wave?
A wave that propagates mechanical energy.
What causes sound waves?
Vibration of particles back and forth.
In what medium does sound travel the slowest?
Gas
Sound wave speed is slowest in gases due to particle spacing.
