Q2 Quiz 2: Constellations & Climate Change Flashcards
What is climate change?
a change in climate pattern due to natural or man - made dynamic processes
give me the causes of climate change?
volcanic eruptions, oceanic circulation, el nino, la nina, tectonic plate movements, solar activity, earth’s motion
how does volcanic eruptions impact climate change?
the gasses block the sun when it erupts causing climate change.
explain El Nino
a sudden abnormal increase of temperature in the eastern pacific region
explain La Nina
brings excessive water, causing floods
does solar activity affect climate change for a long period?
no, it would only affect climate change for a short period of time
how does solar activity affect climate change
changes in the sun affects a change in climate change
how does tectonic plate movements affect climate change
it changes the earth’s surface causing climate change
how does earth’s motion affect climate change?
the orbit of the earth can make a season stay for a longer period, causing higher temperatures, which then causes climate change
how many percent of human activities are responsible for climate change
90% of human activities are responsible for climate change.
what is the green house affect?
traps heat in earth’s surface characterized global warming
Give me the 5 green house gasses
- Carbon Dioxide
- Water Vapor
- Methane
- Nitros Oxide
- Synthetic chemicals
Causes of increase of green house gasses
- burning of fossil fuel
- burning of forests
- livestock agricultural production
4.air conditioners and refrigerators chemicals.
impacts of man-made climate change
too much C02 from fossil fuel = increase of average temperature
Global warming = higher surface temperature
increase of temperature = ice glaciers melting
ice melt = flood
intense heat
extreme weathers, like typhoons
extinction of species as global warming worsens.
give me ways to slow down climate change
- choose reusable products instead of things that can’t be disposed
- try to repair something broken before buying something new
- save energy, don’t use energy when it isn’t required.
- use vehicles wisely, use them only when you have to drive far.
- dispose of waste properly.
give me the five characteristics of stars
- color
- surface temperature
- size
- composition
- brightness
what are color
blue stars = hot stars
orange, our sun = medium hot
reddish stars = cooler stars
what is surface temperature
expressed in kelvin, the standard unit for temperature
2 factors of brightness
Magnitude:
- depends on size and distance
Luminosity
- the rate of which stars radiate energy
4 sizes of a star
DWARF = SMALL
THE SUN =. MEDIUM
GIANT STAR = TWICE OR 10X BIGGER THAN OUR SUN
SUPER GIANT = 10X+ BIGGER THAN OUR SUN
hertzsprung russel diagram
used to identify magnitude, luminosity and temperature
what is a composition of a star
- can be detected by studying spectral lines detected by the spectroscope
what is a constellation
a section in the sky with a recognizable pattern of stars
how many known constellations are there right now
currently there are 88 known constellations
what is a circumpolar constellation
constellations that can be seen throughout the year
circumpolar constellations that can be seen in the northern hemisphere
Ursa Major
Ursa Minor
Cassiopeia
Cygnus
circumpolar constellations that can be seen in the southern hemisphere
Carina
Crux
Centaurus
Astronomy vs Astrology
Astronomy:
beliefs and myths in the sky, stars influence one’s life does not use scientific method.
Astrology
uses principles of physics and uses the scientific method to test theories
