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Electromagnetic Waves, Makes up the - Coggle Diagram
Electromagnetic Waves
Application of Electromagnetic Waves
Radio Waves
are used in radios, over-the-air television and communication, (long and short distance)
Microwaves
is used in microwave ovens, satellite televisions and is used to track your location in the Global Positioning System
Infrared Radiations
is used to operate a variety of electrical devices like remote controllers, ear thermometers and intruder alarms
Visible Light
is used for optical fibres and allows living things, like humans to see to see and enjoy various activities
Ultraviolet Radiations
is used in sunbeds and sterillisation of laboratory equipment
X Rays
are used in both radiation therapy to kill cancer cells and in the diagnosis of medical conditions as it can produce X-ray images of fractures or tooth decay.
X- Rays are also used to screen baggage in airports to identify any weapon or illegal items being brought in or out of the country
Gamma rays
being the most energetic in the electromagnetic spectrum, is used in cancer treatment to kill the cancer cells
Effects of Electromagnetic Waves
Infrared radiation causes
heating
Ionising radiation
ionises atoms and molecules
and
causes damage to living cells
, like causing cancer
*Properties of Electromagnetic Waves
They are
transverse waves
They are able to
travel through vacuum
They are able to
transfer energy
from place to place
They all have the same speed in vacuum, which is
(3.0 x 10 to the power of 8 m/s to the power of -1)
The
wave speed = frequency X wavelength
is applicable to all electromagnetic waves
When traveling from one medium to another, their
speed and wavelength changes but their frequency does not
They
follow the laws of reflection and refraction
They posses
no electric charge
Electromagnetic Spectrum
Makes up the