2.1 Light, Waves, Color Study Guide
Which color wave would have the highest frequency?
Red
Why is an apple red?
Apples absorb all the colors from the sunlight except red, which reflects off the apple, and we end up seeing. That is why we perceive apples to be red.
What is the relationship between Energy and Frequency?
Directly Related
Prism
In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. At least two of the flat surfaces must have an angle between them. ... Furthermore, prisms can be used to reflect light, or to split light into components with different polarizations.
What is the relationship between Energy and Wavelength?
Inversely Related
What is the relationship between frequency and wavelength?
Inversely Related
Index of Refraction
Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another.
Which color wave has a longer wavelength? Red, green, or blue
Blue
Colors
Color, is the characteristic of visual perception described through color categories
Frequency
Frequency describes the number of waves that pass a fixed place in a given amount of time.
Which wave would have the highest frequency? Radio, visible, ultraviolet, or gamma
Gamma rays
Highest to Lowest frequency of waves?
Gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.
Highest to lowest energy of waves?
Gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.
Light Energy
Light energy is a kind of kinetic energy with the ability to make types of light visible to human eyes.
How and why does light refract?
Light refracts whenever it travels at an angle into a substance with a different refractive index.
What happens when light enters a new medium such as water vapor/droplets?
Light waves refract when they cross over the boundary from one medium to another. The decrease in speed upon entry of light into a water droplet causes a bending of the path of light towards the normal. And upon exiting the droplet, light speeds up and bends away from the normal.
Which wave has a longer wavelength? Radio, visible, ultraviolet, or gamma
Radio waves
Longest to Shortest wavelength of waves?
Radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
Which color wave has a longer wavelength? Red, green, or blue?
Red
Longest to shortest wavelength of the colors in the electromagnetic spectrum?
Red, Orange, Yellow, Green, Blue, Violet
Longest to shortest wavelength of the colors in the visible light spectrum?
Reds, Oranges, Yellows, Greens, Blues, Violets
Reflection
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.
Refraction
Refraction is the bending of a wave when it enters a medium where its speed is different (aka; the bending of light)
Scattering
Scattering occurs when light or other energy waves pass through an imperfect medium (such as air filled with particles of some sort) and are deflected from a straight path.
Identify the order of wave colors in visible light spectrum
The colors produced by light passing through a prism are arranged in a precise array or spectrum from red through orange, yellow, green, blue, indigo and into violet.
Dispersion
The dispersion of light is the phenomenon of splitting of a beam of white light into the colors of the rainbow when passed through a transparent medium.
Wavelength
The distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
Electromagnetic Spectrum
The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies.
Highest to lowest energy of the colors in the electromagnetic spectrum?
Violet, Blue, Green, Yellow, Orange, Red
Highest to lowest frequency of the colors in the electromagnetic spectrum?
Violet, Blue, Green, Yellow, Orange, Red
Highest to lowest frequency of the colors in the visible light spectrum?
Violet, Blue, Green, Yellow, Orange, Red
Most to least energy of the colors in the visible light spectrum?
Violet, Blue, Green, Yellow, Orange, Red
Visible Light
Visible light is a form of electromagnetic (EM) radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves. Generally, visible light is defined as the wavelengths that are visible to most human eyes.
How and why do we see color?
When light hits an object, the object absorbs some of the light and reflects the rest of it. Which wavelengths are reflected or absorbed depends on the properties of the object.
Energy
distance from midpoint of a wave to the crest
