Urban heat island study guide
gamma rays
Doctors do brain surgery using gamma ray knives You can use very small doses gamma rays to sterilize food or medical tools
Amplitude
Height of a wave
Which of the EM waves produced by the sun hit Earth's surface?
Infrared light, radio, visible light
visible light
It can be harmful and helpful Visible to most human eyes ROYGBIV makes it up
radio wave facts
It is believed that they will travel forever unless they are absorbed by something
Ultra violet
It is the sunlight divided into three brands It can cause melanoma and other skin cancers
what happens when light is absorbed
Light converts to heat
Wavelength
The distance between two corresponding parts of a wave
What is an urban heat island?
Urban areas that are a lot warmer than their surrounding rural areas due to human activities.
why do urban heat islands happen?
Urban heat islands occur when the city experiences much warmer temps than nearby rural ares.
why do darker surfaces get hotter than lighter surfaces
dark surfaces attracts more incoming radiation
x ray
discovered by accident A German scientist Wilhelm Conrad Roentgen discovered them Airport securities and doctors use it to look and your bones
Microwave uses
heat stuff up and the travel in straight lines
how does the rainbow in a prism happen
how does the rainbow in a prism happen The prism slows the white light down and splits the white light into the visible light spectrum (the rainbow).
What do we feel as heat?
infrared
How each part varies in terms of energy, frequency, and wavelength.
lowest - radio, micro wave , infrared, ultraviolet, visible, xray, gamma ray
what is sunlight made of
made of all forms of visible light and will form a spectrum inside the spectroscope
how are different forms of light made ?
made of different wavelengths of visible light.
What are the parts of the EM spectrum
radio, microwave, infrared,visible light ( roygbiv ), ultra violet, x ray, gamma ray,
What parts of the spectrum reach Earth's surface from the sun?
some Infrared, radio waves, visible light and some UV
what are radio waves used for ?
telescopes, radios, communication, satellites, computer networks
what happened to the beads when they were exposed to the sunlight
the beads changed color due to the fact they are sensitive to UV waves
what does diffraction involve?
the bending of light
what happens to the energy if the wavelength goes down
the energy goes up
what happens to the energy when if the frequency goes down ?
the energy goes up
what happens to the frequency when the wavelength goes up
the frequency goes down
what happens when light is reflected
the incoming light wave bounces right of the object at an opposite but eagle angel
what happens when light is transmitted
the light can not pass through the object therefore its not absorbed
Frequency
the number of complete wavelengths that pass a point in a given time
what happens to the wavelength when the amplitude goes up
the wavelength stays the same
Infrared uses
used for night vision goggles and cameras and we sense it as heat
what part can we see?
visible light
whats the law of reflection ?
when a light reflects the smooth surface like a mirror
when and how is more infrared created
when material absorb EM waves more infrared is created and the temperature increases.
Why do we perceive the color of an object as red, orange, yellow, green, blue, indigo, or violet ?
when you look at an object and absorb all the visible light except for the main color because it is reflected.
