The ability to do work or cause change
energy
Identify the Crest
Top part of the wave
The ability of a material to bounce back after being disturbed
elasticity
Sound waves travel in an _______________ waves
longitudinal
who is inventor of the telephone
Alexander Graham Bell
any substance in which energy travels
medium
Identify the trough
lowest point of the wave
How high or low a sound is
pitch
a ____________ is a high-pressure area of tightly packed molecules.
compression
What is the name of Harry Potter's owl?
Hedwig
the number of complete wavelengths that pass a point in a given time
frequency
Identify rest position
equilibrium
Mass per unit volume
density
a ________ is a low-pressure area of loosely-packed molecules
rarefaction
What is the smallest country in the world?
Vatican City
The distance an object travel in a given amount of time
speed
Identify the wave length
Crest to crest
the amount of energy in a light or sound wave, which we perceive as brightness or loudness, as determined by the wave's amplitude
intensity
at ______ decibels you can damage your hearing
85
Which is the longest river in the world?
Nile
repeated back-and-forth or up-and-down motion
vibration
Identify the amplitude
rest position to crest
the unit used to measure sound intensity or loudness
decible
Sound waves travel fastest through __________ medium.
solid
What year did the first iPhone come out?
2007