EM radiation is created
when an atomic particle, such as an electron, is accelerated by an electric field, causing it to move
. The movement produces oscillating electric and magnetic fields, which travel at right angles to each other in a bundle of light energy called a photon.
How is electromagnetic created?
Electromagnetic waves are formed when an electric field (which is shown in blue arrows)
couples with a magnetic field
(which is shown in red arrows). Magnetic and electric fields of an electromagnetic wave are perpendicular to each other and to the direction of the wave.
What are 3 examples of electromagnetic energy?
Examples of EM radiation include
radio waves and microwaves
, as well as infrared, ultraviolet, gamma, and x-rays. Some sources of EM radiation include sources in the cosmos (e.g., the sun and stars), radioactive elements, and manufactured devices.
Where do we get our electromagnetic energy from?
Electromagnetic radiation is
produced whenever a charged particle, such as an electron
, changes its velocity—i.e., whenever it is accelerated or decelerated. The energy of the electromagnetic radiation thus produced comes from the charged particle and is therefore lost by it.
What kind of energy is electromagnetic energy?
Electromagnetic (EM) radiation is a
form of energy
that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma rays. Sunlight is also a form of EM energy, but visible light is only a small portion of the EM spectrum, which contains a broad range of electromagnetic wavelengths.
What are the 7 electromagnetic waves and their uses?
- Radio Waves: Instant Communication. …
- Microwaves: Data and Heat. …
- Infrared Waves: Invisible Heat. …
- Visible Light Rays. …
- Ultraviolet Waves: Energetic Light. …
- X-rays: Penetrating Radiation. …
- Gamma Rays: Nuclear Energy.
How do electromagnetic waves play an important role in your life?
Electromagnetic waves are
used to transmit long/short/FM wavelength radio waves, and TV/telephone/wireless signals or energies
. They are also responsible for transmitting energy in the form of microwaves, infrared radiation (IR), visible light (VIS), ultraviolet light (UV), X-rays, and gamma rays.
What is the most important electromagnetic wave?
The different types of waves have different uses and functions in our everyday lives. The most important of these is
visible light
, which enables us to see. Radio waves have the longest wavelengths of all the electromagnetic waves. They range from around a foot long to several miles long.
Which is the best example of how electromagnetic energy is used in everyday life?
Everyday life is pervaded by artificially made electromagnetic radiation:
food is heated in microwave ovens
, airplanes are guided by radar waves, television sets receive electromagnetic waves transmitted by broadcasting stations, and infrared waves from heaters provide warmth.
What is meant by electromagnetic energy?
Electromagnetic energy is a
form of energy that is reflected or emitted from objects in the form of electrical and magnetic waves
that can travel through space.
What are the 7 electromagnetic waves in order?
In order from highest to lowest energy, the sections of the EM spectrum are named:
gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves
.
What are some examples of electrical energy?
- Washing machine.
- Dryer.
- Television.
- Cell phone.
- Laptop.
- Air conditioning system.
- Flashlight.
- Heating system.
What are some examples of electromagnetic waves in your daily life?
- Radio and Television.
- Microwave Ovens.
- Medical Examination.
- Sterilization.
- Communication Devices.
- RADAR.
- Military Equipment.
- Cancer Therapy.
What are the 7 types of radiation?
The electromagnetic spectrum includes, from longest wavelength to shortest:
radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays
. To tour the electromagnetic spectrum, follow the links below!
What is the effect of electromagnetic waves on human body?
Reported symptoms include
headaches, anxiety, suicide and depression, nausea, fatigue and loss of libido
. To date, scientific evidence does not support a link between these symptoms and exposure to electromagnetic fields.
What objects use electromagnetic waves?
When you listen to the
radio, watch TV, or cook dinner in
a microwave oven, you are using electromagnetic waves. Radio waves, television waves, and microwaves are all types of electromagnetic waves.
