الطيف الكهرومغناطيسي. الطيف الكهرومغناطيسي activity

UV ultraviolet is absorbed by the very outer layer of our skin which causes sunburn and skin cancer• taking long steps "long wavelength"• Visible light goes "Roy G Bv": Red Orange Yellow Green Blue Violet• Example: From The Sun A lot of the the radiation from the Sun gets reflected or absorbed by the atmosphere X-rays are absorbed at different rates by bone and muscle so we can see inside us• As Photons Electromagnetic radiation behaves as waves, but also behaves as packets of energy called Photons
Blue light has higher frequency with shorter wavelengths , so has more energy than red That is 300 million meters every second, or:• Here is the full electromagnetic spectrum: Higher frequency rate of vibration has more energy and shorter wavelength

تعريف الطيف الكهرومغناطيسي

Electromagnetic Spectrum Electromagnetism It is called "electromagnetism" because electricity and magnetism are linked: A changing electric field produces a magnetic field, a changing magnetic field produces an electric field,.

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ناسا بالعربي
Photons have no mass, but each photon has a specific amount of energy that depends on its frequency number of vibrations per second
الطيف الكهرومغناطيسي
and again taking short steps "short wavelength" What is the frequency of your steps in each case? Example: Which has more energy, red light or blue light? […] He found that the temperatures of the colors increased from the violet to the red part of the spectrum
طيف كهرومغناطيسي
Energy A higher frequency rate of vibration has shorter wavelength and more energy
This effect heads off through space at the fastest speed possible: the speed of light But how waves interact with matter depends on their energy and the type of matter Example: Our Bodies• So telescopes like the NuSTAR X-ray telescope have to be in orbit
To his surprise, he found that this region had the highest temperature of all

ناسا بالعربي

Ranges We like to think of the spectrum as having these ranges:• Energy and Ionization Gamma rays, x-rays, and some ultraviolet waves have such high energy that they are "ionizing," meaning they can knock electrons out of atoms.

حل وحدة الطيف الكهرومغناطيسي علوم الصف التاسع
Rays X-rays and gamma rays at the high energy end To remember the energy and danger levels, think "Radio is low, but rays are like razors"
ما هو الإشعاع الكهرومغناطيسي ؟
some ultraviolet get all the way through: Imagine: if our eyes could only see X-rays the sky would be black! It goes: Radio, Micro, Infrared, Light, Ultraviolet, Rays• We can measure a photon's position and momentum
الطيف الكهرومغناطيسي
radio waves pass through our bodies• skin absorbs some infrared and light, and reflects the rest• Each photon has a wavelength So it is like a particle and also like a wave