SCIENCE
a disturbance is produce, when a magnetic field and electric field are produced
ELECTROMAGNETIC WAVES
it oscillates in the x-axis
MANGETIC FIELD
it oscillates in y-axis
ELECTRIC FIELD
lines that never intersect
Parallel Lines
lines that meet at a point
Intersecting Lines
lines that intersect and form a right angle
Perpendicular Lines
can be created by placing coiled wire between two magnets
Electric Generator
a device that converts electrical energy to mechanical energy
Electric Motor
most efficient transformer
Shell-Type Transformer
it consists of a magnetic loop where primary coil is wounded in one side
Closed-Core Transformer
consists of magnetic bar where coil is wrapped around
Autotransfomers
the bouncing of light when it hits a reflecting surface or boundary of another medium
Reflection
mirrors with flat surface
Plane Mirror
mirrors with curved surface
Spherical Mirror
formed by actual or "real" light rays
Real Image
image created by light rays that apparently converge or meet at one point
Virtual Image
the ratio of the image Si to the object So
Lateral Magnification
if the reflecting surface is curved inward
Concave Mirror
if the reflecting surface is curved outward
Convex Mirror
the flow of electrical changes, always produce magnetic field
Electric Current
amount of mass in the given volume
Density
unit for absorbed dose
Rad(Gy)
unit for radiation monitoring devices
Rem(Sv)
it occurs when the subject is exposed to a radiation dosage for about 100 rad or less
Podromal Stage
coming off from the depths of our planet
Terrestrial Radiation
coming off from the outer space
Cosmic Radiation
known as heatwaves
Infrared Waves
predicted the occurrence of electromagnetic waves
James Clark Maxwell
produce the first microscopic electromagnetic waves
Heinrich Herts
it has the greatest wavelength and lowest frequency
Radio and Tv Waves
electromagnetic spectrum that is visible to the naked eye
Light Waves
imagining of organ and blood flow studies
Technetium-99
determine damagw in the heart tissues
Thallium-201
the waves that has no enough energy to cause ionization
Non-Ionizing Radiation
parts of wire that is in contact with the commutator
Brush
reverse the current of every half revolution
Commutator
The line MN, opening of the mirror
Aperture
line drawn passing through the vertex
Principal Axis
the distance of the optical center to the focus at the optical axis
Focal Length
the point where the light rays converge in the convex lenses
Principal Focus
the bending of light as it passes the interface of the two medium with different optical density
Refraction
reflecting on transparent object
Specular Reflection
the reflecting on opaque objects
Diffuse Reflection
black light and do not allow it to passes through them
Opaque Object