What Is Sound Flashcards
How are sound waves formed
They are formed when there are vibrations in the air which vibrate the air molecules. This will cause a chain reaction until the sound is heard to our ear drums
How fast does sound travel
343 meters per second
Why is there no sound in space
For sound to travel there needs to be molecules to vibrate and pass the information on. In space there is a very low destiny
What is amplitude
Is the maximum displacement of a particle form its rest position. This is measured in metres
What is loudness
It is measured in dB. It is also referred to intensity.
What are echoes
Echoes are the sound that bounces off a hard surface and an echo is heard from the originality sound.
How long does it take for the human ear to tell different sounds?
The human ear can tell different sound that are one fifteenth of a second apart.
What type of wave is sound?
Longitudinal
What type of wave is sound?
Longitudinal
