Vocab
What is the region of a longitudinal wave where the particles are close together?
What is compression
How is the energy on the EM spectrum organized? From ______ to ______ .
longest wavelength to shortest; from lowest frequency to highest
The only part of the EM spectrum we see is _______________.
Visible Light
Which type of wave moves matter forward and backward in the medium in the same direction as the wave?
What is a Longitudinal Wave.
The rhythmic disturbance that carries energy and NOT matter
a Wave
The distance between two like points in a wave
What is wavelength.
What color of light has the longest wavelength (least amount of energy)?
Red
Our _________ vibrates first to allow the energy to pass on for us to hear.
Eardrum
Which type of wave moves matter in right angles in the direction of the wave?
What is a Transverse Wave.
The measure of how high or low a wave is
Amplitude
What is the main type of wave uses matter to transfer energy?
Mechanical Wave
What is the most dangerous part of the EM spectrum that can harm us?
Gamma Rays
When waves bounce off of an object
Reflection
Which type of wave does not need a matter to transfer energy?
What is electromagnetic
The low point of a transverse wave
Trough
The number of wavelengths that pass a given point per second
Frequency
The speed of a wave is measured by how close the crests are, or by _________, which is measured in Hz.
Frequency
What unit is the loudness of a sound measured in?
Decibels
High frequency waves have _______ wavelengths.
High frequency waves have SHORT wavelengths.
The high point of a transverse wave
Crest
The matter that mechanical waves travel through is known as ____________.
The Medium
Sound travels fastest in a _______ because of the DECREASED distance between the particles.
Solid
The type of wave that makes up sound waves
What is a longitudinal or compressional wave
Which type of wave is emitted from the Sun and does not need a medium to travel?
Electromagnetic
An Electromagnetic wave travels fastest in a _______.
Gas or a vacuum where there are no atoms to slow it down.