The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays. … Fireflies, light bulbs, and stars all emit visible light. Ultraviolet: Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns.
What is the main source of electromagnetic energy?
Many sources of electromagnetic radiation come from man-made technology. On the other side of the spectrum, we have ultraviolet radiation, which is emitted by black lights and fluorescent lamps. Of course, the main source of UV rays is the sun, which is also a major source of X-rays.
What emits electromagnetic radiation?
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 energy produced?
Electromagnetic radiation is made when an atom absorbs energy. The absorbed energy causes one or more electrons to change their locale within the atom. When the electron returns to its original position, an electromagnetic wave is produced. … These electrons in these atoms are then in a high energy state.
What are the five behaviors of electromagnetic energy?
Light waves across the electromagnetic spectrum behave in similar ways. When a light wave encounters an object, they are either transmitted, reflected, absorbed, refracted, polarized, diffracted, or scattered depending on the composition of the object and the wavelength of the light.
Which color has the highest energy?
What is meant by electromagnetic energy?
Radiation that has both electric and magnetic fields and travels in waves. … Electromagnetic radiation can vary in strength from low energy to high energy. It includes radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays. Also called EMR.
Do baby monitors cause cancer?
The International Agency for Research on Cancer (IARC), an organization that is part of the World Health Organization (WHO), declared in 2011 that all radio frequencies are a possible cause of cancer. Most modern baby monitors use DECT or FHSS technologies that operate on frequencies ranging from 1.89 GHz to 2.4 GHz.
What gives off radiation in the home?
In homes and buildings, there are radioactive elements in the air. These radioactive elements are radon (Radon 222), thoron (Radon 220) and by products formed by the decay of radium (Radium 226) and thorium present in many sorts of rocks, other building materials and in the soil.
What type of EMR has the least amount of energy?
What are the 4 main properties of electromagnetic waves?
Like other waves, electromagnetic waves have properties of speed, wavelength, and frequency.23 мая 2019 г.
What are the 7 types of waves?
Though the sciences generally classify EM waves into seven basic types, all are manifestations of the same phenomenon.
- 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.
What are the 7 types of electromagnetic waves?
The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
What is the behavior of light?
Light behaves as a wave – it undergoes reflection, refraction, and diffraction just like any wave would. Yet there is still more reason to believe in the wavelike nature of light. Continue with Lesson 1 to learn about more behaviors that could never be explained by a strictly particle-view of light.
Do radio waves bounce off objects?
Radio waves can be reflected and refracted in a manner similar to light. They are affected by the ground terrain, atmosphere and other objects. … Radio waves interact with objects in three principle ways: Reflection – A radio wave bounces off an object larger than its wavelength.
Which type of electromagnetic wave has the greatest energy?