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The Science of Light and Color for Kids: Rainbows and the Electromagnetic Spectrum – FreeSchool
The Science of Light and Color for Kids: Rainbows and the Electromagnetic Spectrum – FreeSchool
The Science of Light and Color for Kids: Rainbows and the Electromagnetic Spectrum – FreeSchool
The Electromagnetic Spectrum & The Rainbow [1]
The Electromagnetic Spectrum is the range of all types of Electromagnetic Radiation. This radiation is defined by photons traveling at the speed of light
The Visible Light Spectrum is a subset of the Electromagnetic Spectrum. This is the only part of the EM Spectrum that humans can actually see with the naked eye
They form when the light wave passes through a prism, like a water droplet, and is refracted – or bent – by the prism. That bent light is then reflected – or bounced off of – the surface of that prism again
Science Mission Directorate [2]
The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light
All electromagnetic radiation is light, but we can only see a small portion of this radiation—the portion we call visible light. Cone-shaped cells in our eyes act as receivers tuned to the wavelengths in this narrow band of the spectrum
As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.
What are the colours of the rainbow? [3]
The colours you see when a rainbow appears are the result of light being split into its various individual wavelengths.. This gives us a spectrum of colours that range from the shorter blue and violet wavelengths through to the longer red wavelengths
The colours of the rainbow are Red, Orange, Yellow, Green, Blue, Indigo and Violet.. The Greek philosopher Aristotle first started musing about rainbows and their colours back in 350 BC
Senaca was surprisingly ahead of his time in his reasoning, even predicting the discovery of the prism effect by Newton centuries later.. Throughout the ages, thinkers, philosophers and naturalists examined the phenomenon of the rainbow effect, noting its appearance not just in the sky but in other circumstances too.
Rainbow [4]
A rainbow is a multicolored arc made by light striking water droplets.. A rainbow is a multicolored arc made by light striking water droplets.
Rainbows can also be viewed around fog, sea spray, or waterfalls.. A rainbow is an optical illusion—it does not actually exist in a specific spot in the sky
The sun or other source of light is usually behind the person seeing the rainbow. In fact, the center of a primary rainbow is the antisolar point, the imaginary point exactly opposite the sun.
The science behind rainbows and how they work [5]
The short answer to this question: Light bounces off of water droplets and is split into the colors that make up white light. That refracted light is bounced back to our eyes as a rainbow.
The sun emits light of many wavelengths, all of which are on the electromagnetic spectrum. The full spectrum of light in our universe includes the highest wavelengths of gamma radiation to the lowest wavelengths of radio waves
Also referred to as white light, this is the light that gives us the view of the world around us.. In the vacuum of space, light travels at 3 x 108 meters per second, or the speed of light
Science Mission Directorate [6]
The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light
All electromagnetic radiation is light, but we can only see a small portion of this radiation—the portion we call visible light. Cone-shaped cells in our eyes act as receivers tuned to the wavelengths in this narrow band of the spectrum
As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.
Rainbow [7]
A rainbow is a multicolored arc made by light striking water droplets.. A rainbow is a multicolored arc made by light striking water droplets.
Rainbows can also be viewed around fog, sea spray, or waterfalls.. A rainbow is an optical illusion—it does not actually exist in a specific spot in the sky
The sun or other source of light is usually behind the person seeing the rainbow. In fact, the center of a primary rainbow is the antisolar point, the imaginary point exactly opposite the sun.
What Causes Halos, Sundogs and Sun Pillars? [8]
A stretch of dangerous heat into Thursday with heat indices from 100 to 115. Avoid strenuous outdoor activity during the hottest part of the day, take frequent rest breaks in shade and air conditioning, and drink water regularly
The atmosphere is also capable of producing colorful displays when conditions are right. Some of these optical effects include halos, sun pillars, and sundogs
Light is electromagnetic radiation with a wavelength that is visible to the eye. Visible light is composed of all the colors of the rainbow.
Physics Tutorial: The Electromagnetic and Visible Spectra [9]
As discussed in Unit 10 of The Physics Classroom Tutorial, electromagnetic waves are waves that are capable of traveling through a vacuum. Unlike mechanical waves that require a medium in order to transport their energy, electromagnetic waves are capable of transporting energy through the vacuum of outer space
The precise nature of such electromagnetic waves is not discussed in The Physics Classroom Tutorial. Nonetheless, there are a variety of statements that can be made about such waves.
This continuous range of frequencies is known as the electromagnetic spectrum. The entire range of the spectrum is often broken into specific regions
The Electromagnetic Spectrum – Fundamentals of Heat, Light & Sound [10]
– List three “rules of thumb” that apply to the different frequencies along the electromagnetic spectrum.. – Explain why the higher the frequency, the shorter the wavelength of an electromagnetic wave.
– List and explain the different methods by which electromagnetic waves are produced across the spectrum.. In this module we examine how electromagnetic waves are classified into categories such as radio, infrared, ultraviolet, and so on, so that we can understand some of their similarities as well as some of their differences
A brief overview of the production and utilization of electromagnetic waves is found in Table 1.. |Type of EM wave||Production||Applications||Life sciences aspect||Issues|
Electromagnetic spectrum [11]
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.. The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from below one hertz to above 1025 hertz, corresponding to wavelengths from thousands of kilometers down to a fraction of the size of an atomic nucleus
The electromagnetic waves in each of these bands have different characteristics, such as how they are produced, how they interact with matter, and their practical applications. There is no known limit for long and short wavelengths
Radiation of visible light and longer wavelengths are classified as nonionizing radiation because they have insufficient energy to cause these effects.. Throughout most of the electromagnetic spectrum, spectroscopy can be used to separate waves of different frequencies, producing a spectrum of the constituent frequencies
Sources
- https://www.rainbowsymphony.com/blogs/blog/the-electromagnetic-spectrum-the-rainbow#:~:text=The%20Visible%20Light%20Spectrum%20is,of%20the%20visible%20light%20spectrum.
- https://science.nasa.gov/ems/09_visiblelight#:~:text=WAVELENGTHS%20OF%20VISIBLE%20LIGHT&text=As%20the%20full%20spectrum%20of,wavelength%2C%20at%20around%20700%20nanometers.
- https://www.metoffice.gov.uk/weather/learn-about/weather/optical-effects/rainbows/colours-of-the-rainbow#:~:text=The%20colours%20you%20see%20when,to%20the%20longer%20red%20wavelengths.
- https://education.nationalgeographic.org/resource/rainbow/#:~:text=When%20sunlight%20hits%20a%20rain,is%20separated%2C%20producing%20a%20rainbow.
- https://www.koaa.com/weather/weather-science/the-science-behind-rainbows-and-how-they-work
- https://science.nasa.gov/ems/09_visiblelight
- https://education.nationalgeographic.org/resource/rainbow/
- https://www.weather.gov/arx/why_halos_sundogs_pillars
- https://www.physicsclassroom.com/class/light/Lesson-2/The-Electromagnetic-and-Visible-Spectra
- https://pressbooks.nscc.ca/heatlightsound/chapter/24-3-the-electromagnetic-spectrum/
- https://en.wikipedia.org/wiki/Electromagnetic_spectrum
