What is an electromagnectic spectrum made of?

Question

the types of waves

e.g radio waves etc

Answer 1

The very smallest are cosmic rays from outer space

gamma rays from radioactive decomposition

X-rays

ultraviolet

visible light

infrared

microwave

radio waves

TV waves

electric waves generated by high voltage lines (largest wavelength)

Answer 2

electromgnetic waves of different frequencies and wavelengths.

Gamma radiation is at the top end, with the highest frequency. radio waves are at the bottom of the scale with the lowest frequency. Sound waves are at the bottom of the scale and visible light in the middle.

Answer 3

The electromagnetic spectrum is light (i.e., photons).  Some of the photons are what we normally think of as visible light.  Others have the wrong wavelength for us to see them.

Here's how it's ordered, from lowest energy to highest:

Radio - Microwave - Infrared - Visible Light - Ultraviolet - X-rays - Gamma Rays

FYI:

Sound waves do NOT appear anywhere in the electromagnetic spectrum.  They are pressure waves, and have nothing to do with electromagnetism.

Answer 4

The order of waves depends on their frequency, and wavelength,  the longer wavelengths are nearer the left end of the spectrum and shorter wavelength nearer the right end. Because of their shorter wave length they have a higher frequency and therefore more energy which is dangerous.

Radio, micro, infrared, visible light, UV, X-rays, Gamma rays

I remember it as a mnemonic, "rabbits mate in very unusual expensive gardens" hope that helps!!!

Answer 5

Electromagnetic spectrum is the general term given to the range, field or frequency measurement of electromagnetic energy.

Simply put, some electromagnetic energy can be seen and felt while other parts can't by humans, but we can measure it with instruments.

Light is electromagnetic in essence - photonic energy, oscillating at various frequencies produce the visible color spectrum.

Heat is electromagnetic - you can feel it.

Radio waves are electromagnetic - RF energy is emitted by a transmitter or even a sparkplug on a lawnmower or car. These invisible waves travel much like ripples over the surface of water in a pond.

Gamma rays, X-rays and all kinds of cosmic rays are also part of the overall electromagnetic spectral field.

To better grasp the idea of energy states and frequency, I'd need to go into Quantum mechanics - a math/physics topic which is useful for describing known and theoretical states of matter and energy.

Answer 6

electromagnectic energy.