This is the highest part of a transverse wave, not toothpaste.
What is a crest?
The maximum distance the particles of a medium move away from their rest positions as a wave passes through the medium.
What is amplitude?
A wave that moves the medium in a direction perpendicular to the direction in which the wave travels.
What is a transverse wave?
The bending of waves as they enter a new medium at an angle.
What is refraction?
A disturbance that transfers energy from place to place.
What is a wave?
The part of a longitudinal wave where the particles of the medium are close together.
What is a compression?
The number of complete waves that pass a given point in a certain amount of time.
What is frequency?
The bending of waves as they move around a barrier or pass through an opening.
What is diffraction?
The rule that the angle of reflection equals the angle of incidence.
What is the law of reflection?
The part of a longitudinal wave where the particles of the medium are far apart.
What is a rarefaction?
Unit of measurement for frequency.
What is a hertz (Hz)?
The interaction between waves that meet.
What is interference?