EM Spectrum
An Electromagnetic wave travels fastest in a _______.
Gas or a vacuum where there are no atoms to slow it down.
Sound travels fastest in which phase of matter
SOLID
When waves bounce off of an object
What is reflection
type of wave that requires a medium (matter)
the reason you see a t-shirt that is blue
What is the color blue is reflected, others are absorbed.
The distance between wave crests
wavelength
An explosion takes place in space. Which type of waves from the explosion can be observed on Earth? Light, sound or both
light
When a wave hits an object and then goes around the object, it is ________________.
What is diffracted
reflection of light occurs best on this type of surface
What is flat, shiny and smooth
why you can still hear an owl hoot in your neighbors back yard (sound waves do what?)
sound waves spread out over a large area; just weaker at greater distances.
What do all waves carry?
energy
The type of wave that the particles move back and forth; parallel to the wave
What is longitudinal
When a wave has a high frequency, it has a _________ (short or long) wavelength.
What is short
one type of surface that would create an echo
What is anything flat and solid (rock, glass, etc)
Wave A has a wavelength of 50 meters and Wave B has a wavelength of 5 meters. The wave that has the higher FREQUENCY
what is wave B
What type of wave is where the particles move perpendicular to the wave (looks like an "S")
transverse
A ray of sunlight enters a glass of water and bends, this is known as
What is refraction?
What is electromagnetic
term that describes the transfer of wave energy to a material when the wave strikes the material: ex: foam in a sound proof room
What is absorption
Sound waves travel slowest in this form of matter
what is gas (air)
The number of wavelengths that pass a point in one second is its
Frequency
an echo is an example of what type of wave transmission
What is reflection?
the formula for finding the speed of a wave
What is frequency x wavelength
The color that absorbs more waves from the sun
What is black
the reason you feel cooler wearing a white shirt in the summer vs black
What is light is reflected in a white t-shirt rather than absorbed or transmitted.