Sun Flashcards
the star at the center of the Solar System
Sun
What are the layers of the sun
core,
radiation zone, and convection zone.
What are the layers of the suns atmosphere
photosphere, the chromosphere,
and the corona.
What si the temperature of the suns surface
5600-6000 degrees c
What is the Temperature of the suns corana
Around 3 million degrees c
What process fuels the sun
Nuclear fission
the energy released during nuclear fission or fusion, especially when used to generate electricity.
Nuclear fission
How does the sun rotate
Magnetic fields and poles
How old is the sun
4.5 billion years old
How long until the sun burns out
5 billion years
How much of the solar system’s mass is the sun?
99.8 percent
Sometimes the
loops in sunspot regions suddenly connect, releasing large amounts of
energy. The energy heats gas on the sun to millions of degrees Celsius, causing the gas to explode into space.
Solar flare
a giant cloud of solar plasma drenched with magnetic field lines that are blown away from the Sun during strong, long-duration solar flares and filament eruptions.
Coronal mass ejection
areas of gas on the sun that are cooler than the
gas around them.
Sunspot
Reddish loops of gas which link sunspots regions
Prominences
Parts of nuclear decay
Alpha decay, beta decay, gamma decay
How can Alpha particles penetrate
they may not penetrate deeply but they can do lots of damage to whatever they hit. Released inside the human body they can damage cells causing illness & disease.
How can beta particles penetrate
they’re smaller & lighter so they penetrate deeper into material they hit.
How can gamma rays penetrate
Have no mass & no charge.
●Travel at the speed of light.
●Emitted by nucleus when alpha or beta particle is created.
●Takes thick blocks of concrete or lead to stop gamma rays.
What do alpha, beta,and gamma release
Alpha, beta, and gamma
disturbances of matter. Energy traveling through a medium (solid, liquid, gas) or space.
Waves
Two types of waves and examples
Transverse - water waves
Longitudal - sound waves
Parts of a wavelength
Trough and crest
Meters/second, the speed of a wave
wave speed
The length of a wave, meter
Wavelength
Formula for finding volume of a wave
V=lf
Hertz
Frequency
the absolute value of the maximum displacement from a zero value during one period of an oscillation.
Amplitude
Lowest part of a wave
Trough
Top part of a wave
Crest
Frequencies of waves,EMS
Electromagnetic Spectrum
low frequency EM waves
with wavelengths longer than 1mm.
■ These waves must be turned into sound
waves by a radio before you can hear them
Radio waves
radio waves with wavelengths
less than 30 cm and higher frequency & shorter
Microwaves
EM with wavelengths between 1mm & 750
billionths of a meter.
■ Used daily in remote controls, to read CD-
ROMs
Infrared waves
Range of EM humans can see from 750
billionths to 00 billionths of a meter.
Visible light
EM waves with wavelengths from about
400 billionths to 10 billionths of a meter.
■ Have enough energy to enter skin cells
Ultraviolet waves
EM waves with
shortest wavelength &
highest frequency
■ High Energy- go
through skin & muscle
■ High level exposure
causes cancer
X-rays and gamma rays
What is the speed of light
3 x 108 m/s
How do you feel about this test
Así así
