Parts of an Electromagmetic Wave
Highest point of a wave
What is a CREST
postive charges
What is ANODE
can be seen by the naked eye; made up of different colors
It is the speed of light
What is 3.0 x 10 m/s.
the one who used and verified Maxwell’s theories for him to understand the production, generation and reception of radio waves.
Who is Heinrich Heinz
Lowest point of the wave
Magnetic field lines form ------ loops.
What is CLOSED
high frequency electromagnetic waves that are useful in medicine; produced by rapid reactions, deceleration of charged particles
What is X-RAY
He postulated electric and magnetic equations for electromagnetic fields that are similar to a wave in both structure and action.
Who is JAMES CLERK MAXWELL
the number of waves that pass a point in a certain period of time.
What is FREQUENCY
the direction in which energy of the wave is moving.
What is PROPAGATION VECTOR/DIRECTION
Magnetic fields are produced through the acceleration of charges as explained in --------------
What is Ampere’s Law.
characterized by a shorter wavelength and higher frequency than radio waves; characterized by a shorter wavelength and higher frequency than radio waves
What are MICROWAVES
he used two rods at a distance from each other, which serves as the ----------- and -----------------.
What is RECEIVER and TRANSMITTER
Name of this symbol (λ)
What is LAMBDA
is the distance from one crest to another, or from one trough to another of a wave.
What is a WAVELENGTH
The family of EM waves is referred to as the - ;It is separated into many wave groups based on the generation mechanism, particular uses and effects, and a range of frequencies or wavelengths.
What is ELECTROMAGNETIC SPECTRUM
It includes AM, FM and some aviation broadcasting.
What are RADIO WAVES
The discovery of the existence of radio waves was in the--
What is LATE 1880's
can also interfere with the reproduction of living things.
What is Radiaion
it is measured between the crest and the midpoint of a wave
What is AMPLITUDE
Law that states; A changing to magnetic field B induces an electromotive force, thus it produces an electric field.
What is Faraday’s Law of Electromagnetic induction.
produced by the vibrations of atoms within the molecules; used in physical therapy
What is INFRARED.
--------------------------- produce an electric current, while -------------------- is produced due to changing electric current.
What is ELECTRIC CHARGES IN MOTION ; MAGNETISM
Electric fields originated on postive charges and terminated to negative charges; this can be determined by applying the ------
What is Coulumb’s Law of Magnetism