The SAT Subject Test in Physics assesses students' understanding of physics concepts and their ability to apply these concepts to solve problems.
Waves are disturbances that transfer energy from place to place—think water ripples, sound, or even light! Sound is a type of mechanical wave that moves through air (or other materials).
Sound is a longitudinal wave—particles vibrate back and forth, not up and down.
Waves help us understand music, earthquakes, and even how your cell phone works!
\[v = f \lambda\]
Tuning a guitar changes the frequency (pitch) of the sound waves.
Sonar uses sound waves to map the ocean floor.
Waves transfer energy, and sound is a special kind of wave we hear.