EXAM REVIEWER

Cards (48)

  • Typhoon
    • It is a mature tropical cyclone.
    • General: intense low-pressure wind system with heavy rain
    • Max. surface wind = 118-220 kph
  • Hurricane 
    1. North Atlantic Ocean, 
    2. (North portion) Eastern and Central Pacific Ocean
    Typhoon
    1. Northwest Pacific Ocean
    Tropical Cyclones
    1. South(western) Pacific Ocean
    2. Indian Ocean
  • Tropical Depression
    (TD)
    Max. Surface Wind = up to 60 kph
  • Tropical Storm
    (TS)
    Max. Surface Wind = 61-88 kph
  • Severe Tropical Storm (STS)
    Max. Surface Wind = 89-117 kph
  • Typhoon (TY)
    Max. Surface Wind = 118-220 kph
  • Super Typhoon 
    (STY)
    Max. Surface Wind = more than 220 kph
  • Eye
    center; calmest part 
    Eyewall
    around eye; strongest winds & rains
    Rainbands
    areas of rainfall; composed of inner and outer
  • Conditions to Form Typhoon            
    C-luster of thunderstorms
    W-arm ocean water
    C-onverging winds
    R-otation of earth
  • Landfall
    • when a typhoon moves over land
    • RESULT: it becomes weaker
  • PAGASA
    (Philippine Atmospheric, Geophysical & Astronomical Services Administration)
  • Duties:
    1. Names tropical cyclones
    2. Weather forecasts
    3. Scientific estimate of future weather condition
    4. Cloudiness, rainfall & wind
    5. Sharing other weather-related information
  • Signal No. #1
    Lead time: 36
    Winds: 30-60
    Impact: None-light 
    School Suspension: Preschool
  • Signal No. : #2
    Lead Time: 24
    Winds: 61-120
    Impact: Light-moderate
    School Suspension: Preschool, Elementary & Secondary
  • Signal No. : #3
    Lead Time: 24
    Winds: 121-170
    Impact: Moderate-Heavy
    School Suspension: All Levels
  • Signal No. : #4
    Lead Time: 18
    Winds: 171-220
    Impact: Heavy-Very Heavy
    School Suspension: All Levels
  • Signal No. : #5
    Lead Time: 12
    Winds: More than 220
    Impact: Very Heavy - Widespread
    School Suspension: All Levels
  • YELLOW WARNING
    Within 1 hr:
    7.5-15mm rain
    Continue in next hrs
    Flooding is possible.
    Monitor weather condition
  • ORANGE WARNING
    Within 1 hr:
    15-30mm rain
    Continue in 2 hrs
    Flooding is threatening.
    Be alert for possible evacuation
  • RED WARNING
    Within 1 hr:
    More than 30mm rain
    Continue in next 2hrs
    Serious flooding is expected.
    Evacuate and pack important things
  • Signs of Approaching Typhoon
    (Increasing) W-ave height & frequency
    (Increasing) C-loudiness
                           F-alling air pressure
                           H-eavy rainfall
  • Philippine Area of Responsibility (PAR)
    • Boundary nearest to Philippine islands
    • If typhoons enter the PAR, it will affect our country
    • Includes Taiwan
  • Coordinates:
    5°N, 115°E
    15°N , 115°E
    21°N, 120°E
    25°N, 120°E
    25°N, 135°E
    5°N, 135°E
  • Astrology
    • Belief that the position of objects in space affect people’s personality and lives
  • Astronomy
    • Study of everything in the universe beyond Earth’s atmosphere
  • Uses of Constellations
    Constellation : groups of stars.
    BEFORE
    1. Religion
    2. Believed to be their God’s way of telling stories
    3. Ex: the Star of Bethlehem
    4. Calendar & Navigation Tool
    5. Used to know when to plant crops and harvest them
    NOW
    1. Landmark
    2. Since they’re in a fixed location: they are used as landmarks
  • Comets
    1. Definition
    • Orbits the sun
    • Made up of ice, rock & dust
    • Greek: kometes = “long-haired star”
    • frozen leftovers from the formation of solar system
    • Nicknames
    • Dirty snowballs
    • Fossils of the solar system
    1. Beliefs
    • Appearance of a comet is a sign of destructive & tragic events 
    • Philippines: bad luck
  • Classification
    Long-Period
    Oort Cloud
    Short-Period
    Kuiper Belt
  • Nucleus
    solid center
    Made of rock, dust, ice
  • Coma
    cloudlike; around nucleus
    Formed when ice->gas
    as the comet gets closer to sun
  • Tails
    1. Dust Tail
    Sun’s radiation pushes dust away from coma
    1. Ion Tail
    Sun’s charged particles convert the comet’s gas -> ions
  • Meteoroid
    1. Definition
    • Orbits the sun
    • Small chunk of rock/metal
    • Comes from asteroids or comets
    • Greek: meteoros = “high in the air”
  • Beliefs
    • When you make a wish upon a meteor, it would come true
    • Philippines: bad luck
  • Types of Meteoroids
    STONY
    Rocky silicates
    (75%-90%)
    With minerals
  • Types of Meteoroids
    IRON
    Mix of metal
    Nickel and iron
  • Types of Meteoroids

    STONY IRON Mix of metal and rock

    Combo of stony + iron meteoroids
  • Meteoroid
    - Space debris
    - Rocky & metallic; found in outer space
  • Meteor
    • Enters Earth’s atmosphere
    • Burns up and creates streak of light
  • Meteorite
    • Reaches Earth’s surface
  • Asteroid
    Defenition
    • Orbits the sun
    • (small/large) rocky object
    • Greatly varies in size
    • Responsible for wiping out most of the dinosaur species
    • Greek: asteroeides = “starlike”
    • Remnants of the formation of solar system