Sound Flashcards
Revision for upcoming exam
What is a wave? Not much detail
Vibration/Vibrations
What is a wave? Detail
A wave is an oscillation, or vibration that transfers energy from one place to another.
How is sound caused?
Sound is caused when something vibrates.
What are the two types of wave?
Longitudinal and Transverse
What are Longitudinal waves?
A wave that moves in the same direction as the particles that are vibrating.
What are Transverse waves?
A wave that moves at a 90* angle to the particles that are vibrating.
(*=degrees)
What are echos?
Waves bounce off surfaces. This is called reflection. The wave coming into the barrier is called the incident wave. The wave bouncing off is the reflected wave.
How is the volume of a sound shown?
The volume of a sound is shown by the amplitude of the wave.
What is amplitude?
Amplitude is how tall the wave is.
Will the amplitude of the wave be small or tall if the sound is loud?
It would be tall.
Will the amplitude of the wave be small or tall if the sound is quiet?
It would be small.
How is pitch shown?
The pitch of a sound is shown by frequency.
What is frequency?
Frequency is how many wavelengths there are.
What is a wavelength?
The gap between the peaks of the waves.
How would a wave for a high pitched sound look?
The wavelengths would be short, the frequency would be high and if it is loud then they will be tall however if it is quiet they will be small.
