Physics Flashcards
What is sound caused by?
Sound is produced when an object vibrates. As one particle bumps into another particle the vibration is transferred to the next particle.
What is sound?
Vibrations create regions of airsound is caused by vibrations of particles in a wave like motion.
Types of waves in sound:
Longitudinal: A wave in the same direction- moves back and forth.
Define frequency:
Number of waves passing a point per second.
Unit of frequency:
Hertz
High notes =
High frequency and short wave length.
Low pitch=
Low frequency and long wavelengths
What is decibels?
A unit of measure for loudness
Speed of sound:
340 m/s
At sea level
At 20 degrees Celsius
What is wavelength?
Distance between two corresponding parts of waves
What do waves transfer?
Energy
What do waves NOT transfer?
Matter
What is amplitude?
The distance as a particle moves from its position of rest.
Define speed:
As the rate at which an object covers a distance.
Difference between transverse and longitudinal waves?
In a longitudinal wave, the medium moves in the back and worth motion. In a transverse wave will the medium moves perpendicular (up and down) of the wave.
