What would electomagnetic waves be?

Question

Its in my homework..

the defenition for Radioant energy is..
in the form of electromagenetic waves..

Answer 1

An electromagnetic wave is a distorsion of the elctromagnetic field.

It is just like a waterwave. A waterwave is a distorsion of the surface of the water.

Answer 2

The very **first** thing to remember is that in any oscillating system, there must be at least two ways for energy to be stored (In a pendulum it's potential energy due to height, and kinetic energy due to velocity. In 'spring and mass' systems it's potential energy due to a spring being compressed or stretched, and kinetic energy)

In an electromagnetic wave, the energy of the wave is being transfered back and forth between an electric field vector and a magnetic field vector. The rate at which this is being done is called the 'frequency' of the wave and is measured in cycles/second (also called Herz)

Since (in accordance with Maxwells Equations) a changing electric field generates a changing magnetic field and a changing magnetic field generates a changing electric field, it is reasonable to ask, "Where is this 2'nd electric field with respect to the 1'st electric field?" Or, said another way, "How far apart are the 'peaks' of the electric (or magnetic) field(s)?"

The answer is that, in a vacuum, they are 300,000,000/f meters apart where f is the frequency in Hertz. This leads us to conclude that the speed of all electromagnetic waves (including light) is 300,000,000 meters/second.


Doug

Answer 3

Electromagnetic waves of much lower frequency than visible light were first predicted by Maxwell's equations and subsequently discovered by Heinrich Hertz. Maxwell derived a wave form of the electric and magnetic equations, revealing the wavelike nature of electric and magnetic fields and their symmetry.

According to these equations, a time-varying electric field generates a magnetic field and vice versa. Therefore, as an oscillating electric field generates an oscillating magnetic field, the magnetic field in turn generates an oscillating electric field, and so on. These oscillating fields together form an electromagnetic wave.

Answer 4

It's a complicated wave that is different than sound waves, water waves, etc.

Like Epicarus notes above, its particles that alternately generate electric and magnetic waves. It seems that the magnetic wave drives the electric wave, and the electric wave drives the magnetic wave, and so on. Because of this, electromagnetic waves have their three main distinguising characteristics. They are fast (light speed), they need no medium in which to travel, and they are both a wave and particles simultaneaously/

Answer 5

definition an electomagnetic waves is defined as a results of fact the transportation of skill as a results of disturbance in electric and magnetic fields it may propogates empty area(vacuum),the place there are not any medium the electomagnetic waves is produced by utilising the accelerating electric rates occasion:seen easy,uv easy,radio and tv wave,microwaves,x-rays and radar waves

Answer 6

Electromagnetic waves a usually broken down by their wavelengths. They include visible light and radio waves.

The shortest wave lengths are gamma rays .
Then:
Hard X-rays
Soft X-Rays
Extreme ultraviolet
Near ultraviolet
Visible light
Near infrared
Moderate infrared
Far infrared
Radio waves:
Extremely high frequency (Microwaves)
Super high frequency (Microwaves)
Ultrahigh frequency (TV Channels above 13)
Very high frequency (TV Channels 2-13)
High frequency
Medium frequency
Low frequency
Very low frequency
Voice frequency
Extremely low frequency

Answer 7

Micro-Waves, Radio-Waves, X-Rays, Light, these are all electromagnetic waves.
They're pretty much just photons that emit an alternating magnetic and electric field as they travel along space.

Answer 8

electromagnetic waves are electromagnetic waves from and electromagnetic origin force, the waves will attract or unattract something.

Answer 9

it's a water wave.

Answer 10

light of course