Show:
What is light?
The Electromagnetic Spectrum
Interaction
Light and Matter
Color
100
a wave that consist of electric and magnetic fields that vibrate at right angles to each other
What is electromagnetic wave?
100
this is the electromagnetic spectrum
What is all of the frequencies or wavelengths of electromagnetic radiation?
100
The bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through.
What is reflection?
100
The passing of light or other form of energy through matter
What is transmission?
100
the primary colors of light
What is blue, green, and red
200
the transfer of energy as electr
What is radiation?
200
the E.M wave with the longest wavelength.
What is radio waves?
200
the difference between diffraction and refraction
what is it when diffraction is the bending of waves around barriers or through openings. While refraction is the bending of a wave as it passes between two substances?
200
This is what transparent is and here are some examples.
What is describes matter that allows light to pass through with litte interference. Examples: air, glass, and water?
200
when colors of light combine, you see different colors.
What is color addition?
300
this surrounds every charged object?
What is an electric field?
300
the bad affects of ultraviolet light.
What is sunburns, skin cancer, wrinkles, and damage to the eyes
300
The transfer of light energy to particles of matter?
What is absorption?
300
this is why translucent transmits light but not an image. Give example.
What is scatters the light as it passes through the matter. Ex:wax paper and frosted window?
300
this explains the color of opaque objects
What is when a light strikes a colored opaque object, some colors of light are absorbed, and some are reflected. Only the light that is reflected reach your eyes
400
this is why light from the sun is important?
What is the major source of energy on earth. Also it is important because plants use photosynthesis to store energy from the sun and fossil fuels store energy from the sun too?
400
The very narrow range of wavelengths and frequencies in the electromagnetic spectrum that humans can see.
What is visible light
400
this causes the sky to be blue
What is scattering?
400
3 different ways light interacts with matter.
What is transmitted, reflected, and absorbed?
400
this mixture of light makes yellow
What is red and green
500
the way an E.M wave is produced
What is by the vibration of an electrically charged particle. When the particle vibrate, or moves back and forth, the electric field around it also vibrates.When the electric field vibrates,a magnetic field is created. The vibration of both fields produce an E.M wave
500
Small explanation of gamma rays
What is the E.M wave with the shortest wavelength and can penetrate most materials very easily. Are also used to treat some kind of cancer. Can kill some healthy cells.
500
This is the difference of constructive and destructive interference
What is when the resulting wave of constructive interference has a greater amplitude than an individual wave has. While the destructive interference wave has a smaller amplitude than an individual wave has?
500
An example where light interacts with matter in 3 different ways at the same time.Explain.
What is when looking in a window. The reason you can see objects outside is because the light is TRANSMITTED. Another way light interacts with matter in this explanation is REFLECTION because the light is reflected off of the glass. The last way is when the glass feels warm because some of the light is ABSORBED by the glass
500
This explains the colors on color television
What is produced by color addition of the primary colors of light. A television screen is made up of groups tiny dots of red, green, and blue.each dot will glow when the dot is hit by an electron beam. this will then produce all the different colors on the screen