Light
What is a longer name for light?
EM wave
(or electromagnetic wave)
Sound is one example of what kind of wave?
mechanical wave
What medium does light travel through?
EM fields
(or electromagnetic fields)
(or electric fields and magnetic fields)
What do sound waves require for their medium?
matter
Are light waves always transverse, always longitudinal, or sometimes either one?
Always transverse
Are sound waves always transverse, always longitudinal, or sometimes either one?
sometimes either one
What kind of medium does light travel fastest through?
vacuum
(or space)
(or empty space)
What kind of medium does sound travel fastest through?
As the density of the medium increases, the speed of light ________.
decreases
(or goes down)
As the density of the medium increases, the speed of sound ______.
increases