Q2 W5 Flashcards
PAGASA
Philippine Atmospheric, Geophysical and
Astronomical Services Administration
The agency oversees the tracking
of the movement and strength of a
typhoon once it enters PAR.
PAGASA
An area of a typhoon with the lowest air
pressure.
Eye
Consists of a ring of
tall thunderstorms
that produce heavy
rains and usually the
strongest winds.
Eyewall
Curved bands of clouds and
thunderstorms that trail away from
the eye wall in a spiral fashion.
Rainbands
These bands are capable of
producing heavy bursts of rain and
wind, as well as tornadoes.
Rainbands
The results of the study indicate that learning _____ have positive effects on prediction accuracy.
Velocity, temperature, pressure, and
humidity, along with satellite images.
The region of space
between the orbits of Mars
and Jupiter, where most of
the asteroids in our solar
System are found orbiting
the Sun is called ________, which probably
contains millions of
asteroids.
Asteroid Belt
A small rocky
object that revolves
around the Sun. It is
smaller than a planet, but
larger than we call
meteoroids. Most
asteroids are found in the
asteroid belt, a region
between Mars and Jupiter.
Asteriod
These are carbonaceous asteroid and
are grayish in color.
C-type
They inhabit the middle region of
the main belt.
M-type
About 75% of these asteroids are
found in the asteroid belt.
C-type
These are silicacious asteroid
which are made up of iron and
magnesium silicate making them
greenish to reddish in color.
S-type
These are metallic asteroids
which are rich in metallic
substances such as nickel- iron,
giving them reddish in color.
M-type
lt is the most common among
asteroid.
C-type
There are about 17% of this type
dominating the inner asteroid belt
S-type
Two main Classes of asteroid
Main belt asteroids and Near-earth asteroids
Refers to a cluster of asteroids
located in the “missing planet”
gap between Mars and Jupiter.
Main belt asteroids
Near-earth asteroids are grouped in the what categories?
Athens, apollos and trojans
Lie outside the asteroid belt, near
the orbit of Mars including Ceres, Pallas, Juno, and Vesta.
Athens
Lie near Earth, which sometimes crosses Earth’s orbit.
Apollos
Are known to dwell along Jupiter’s
orbital path and lie within the asteroid belt.
Trojans
The first discovered asteroid was named
Ceres
Ceres was discovered by an ltalian astronomer named
Giuseppe Piazzi
First coined the word
asteroid, which means ____
Astronomer William Herschel, “star like”
Sometimes, asteroid
collides with another
asteroid. Small pieces of it
break off. These small
pieces or fragments are
called ______
meteoroid
A meteoroid comes close enough to the Earth atmosphere. It is pulled by the Earth’s gravity. It burns, vaporizes, and turns into a ___
Meteor
Spark of light in the sky caused by
a meteoroid that crashes towards the Earth’s atmosphere.
Meteor
It is commonly known as a
“shooting star” or “falling star”
Sometimes, a meteor is large to be completely burned or vaporized during its travel towards the Earth, its remnant falls on the ground.
That remnant is called a
meteorite
A combination of ices (both water and frozen gases) and dust.
Comets
They are sometimes called ___ when seen from outside the earth’s atmosphere. They are invisible except when they are near the sun.
“dirty snowballs”or “icy mudballs”
Comets have several distinct parts such as:
Nucleus, Coma, Hydrogen cloud, Dust tail and lon tail
Composed of smoke-sized dust particles driven off the nucleus by escaping gases.
Dust tail
Composed of a dense cloud of water, carbon dioxide and other neutral gases sublimed from the nucleus.
Coma
Composed of plasma and laced with rays and streamers caused by interactions with the solar wind.
lon tail
A huge but very sparse envelope of neutral hydrogen
Hydrogen cloud
This is the most prominent part of a comet to the unaided eye.
Dust tail
Composed mostly of ice and gas with a small amount of dust and other solids.
Nucleus
Comets originate from the __ and the __
Kuiper belt and Oort Cloud
It is believed that comets
visible from Earth are most likely coming from the __ which is near Pluto.
Kuiper belt
On the other hand, the __ is so far away we that no one has ever seen it.
Oort cloud
The word “comet” comes from the Greek word __, meaning __. This is because of how a comet’s tail can look like long flowing locks of hair.
“Kometes,” long hair
Made of frozen water and super
cold methane, ammonia, and carbon dioxide ices. Those are mixed with rock, dust, and other metallic
bits of solar system debris.
Comets
