Word Wall
The number of vibrations per unit time
What is frequency?
This visible wave has the longest wavelength
What is red?
This wave moves particles parallel and perpendicular
What is surface wave?
This is sound waves that are below 20Hz, lower than what a human can hear
What is infrasound?
Infra- means
What is below?
Wavelength X Frequency = ?
What is speed?
The EM spectrum is in order by wavelengths, from ____ to ____ wavelengths (Radio - Gamma)
What is longest to shortest?
A wave with crests and troughs
What is a transverse wave?
This is the unit intensity is measured in
What is decibel (dB)?
You notice a straw in a cup that looks bent even though the straw is not. What is this an example of?
What is refraction?
What is visible light?
This has the shortest wavelength on the EM spectrum
What is gamma ray?
Mechanical waves, unlike EM waves, need this to travel
What is matter?
Animals send out ultrasound waves that are reflected back to them. This is called ___
What is echolocation?
What form of matter do soundwaves travel fastest?
What is solid?
This is the measure of the amount of energy in a sound wave using the unit decibel (dB)
What is intensity?
This light is just above humans visible light range, meaning shorter wavelengths than visible light
What is ultraviolet light?
A wave with compression and rarefaction characteristics
What is a longitudinal wave?
What has to occur for a sound wave to form?
What is a vibration?
What happens when light hits a rough surface?
What is scattering?
This is measured from crest to crest or compression to compression depending on the type of wave
What is wavelength?
Electromagnetic waves have the ability to do what which mechanical can not
What is travel through space/vacuum?
This is the maximum distance the particles moves from resting position when a wave passes through a medium
What is amplitude?
The ability to sense sound energy and perceive sound
What is hearing?
An echo is a sound wave that has been ___
-Absorbed
-Refracted
-Scattered
-Reflected
What is reflected?