science exam q2 Flashcards
are transverse waves consisting of combination of oscillating electric and magnetic fields
Electromagnetic wave
Other term of Electromagnetic wave
EM waves
they cover a wide range of wavelengths and photon energies
The electromagnetic spectrum
___ has the longest wavelength in the electromagnetic spectrum
Radio waves
The main application of radio waves in in ____
Television communication
_____ is a form of EM radiation with very short wavelength of a few centimeters
Microwaves
One of the Most Important Uses of microwaves is RADAR. What is RADAR?
Radio Detection And Ranging
is a electromagnetic radiation that occupies the region between microwaves and visible light.
Infrared
is the most familiar EM radiation That can be detected by The human Eye
Visible Light
is a bond of EM waves beyond the violet end of the visible light region of the spectrum and it extend to the X-ray bond
Ultraviolet Radiation
are the highest frenquency EM waves released during time
Gamma Rays
they require solid, liquid or gaseous medium to transfer energy
Waves
who took equation of electromagnetism and generalized them
James clerk Maxwell
he measured their speed confirming what maxwell predicted
Heinrich hertz
___ is the source of energy upon which organisms on earth depend
Sun
the particles in the medium vibrate in a direction perpendicular to the wave motion
Transverse wave
he discovered EM spectrum
Heinrich hertz
highest part of the transverse wave
crest
lowest part of an transverse wave
trough
Distance between are crest and next in a transverse wave
wavelength
the abrupt in the direction of propagation of a wave that strikes the boundary between diffirent mediums
Reflection
two types of reflection
Diffuse and Specular
light strikes on rough surface causing light to bounce in different direction
diffuse
light strikes on a smooth, polished surface
specular
light strikes on a smooth, polished surface
specular
two type of lenses
Diverging and converging
always upright, virtual, diminished
diverging
