PHYSSCI - 1

• Ancient Greek said that Universe is?


  Stationary
• Universe is divided into two regions


  terrestrial, celestial
• consists of all things on earth that are made up of fire, air, water, earth


  terrestrial region
• includes all heavenly bodies beyond the moon such as sun, stars, and other planets made up of the fifth substance


  celestial region
• what's the fifth substance?


  quintessence
• • driven by force
  • driven by the four elements: fire, air, water, earth


  terrestrial motion
• to seek perfection and return to their natural places


  terrestrial motion
• when in any kind of change of an object, is a process of becoming something new, YOU CAN ALSO LOSE OTHER PROPERTIES


  terrestrial motion
• types of terrestrial motion 


  motion with respect to change in quality, quantity, place
• example: the wood has the potential to be a furniture. The wood ready for production is called


  potentiality
• when the furniture is made, it is called

  actuality
• the process of potentiality to actuality is called


  motion
• • also known as ALTERATION
  • new substance may be formed
  • color, chemical property may change


  motion with respect to change in quality
• • also known as DIMUNITION or GROWTH
  • causes DECREASE or INCREASE in the amount of substance

  motion with respect to change in quantity
• any situation where there's an decrease or increase in quantity 


  motion with respect to change in quantity
• • also known as LOCAL MOTION
  • causes a body or an object to Change its position

  motion with respect to change in Place
• change in position

  motion with respect to change in place
• daily apparent westward motion of the stars, sun, moon, and other celestial bodies around earth


  diurnal motion
• Diurnal Motion is due to

  earth's eastward rotation
• celestial bodies follow an imaginary path 


  diurnal circle
• celestial bodies rise in the East every BLANK then set in the West


  23 hours, 56 minutes, 4.091 secs (sidereal day)
• blank is the time it takes for celestial sphere to comple one rotation on its axis


  sidereal day
• sidereal day

  23 hours, 56 minutes, 4.091 secs
• • stars that never set when viewed at any given latitudes
  • always visible over the entire night

  circumpolar star
• yearly shift of positions of celestial bodies due to the revolution of earth around the sun


  annual motion
• the sun appears to be moving <1 eastward per day at the apparent path relative to the stars called


  ecliptic
• as the sun revolves around the sun, the sun is moving as if it passes the 12 constellations, known as


  Zodiac
• an event occurring twice a year when the sun reaches its maximum northern or souther declination


  solstice
• maximum northern declination, june 21-22


  summer solstice
• maximum southern declination, december 21-22

  winter solstice
• a season that starts when the day and night are the same length on march 20. 


  srping
• season. the weather gets warmer and sunnier, trees and plants starts to grow, and animals have their babies


  spring
• begins on the longest day of the year

  summer
• usually the warmest and the sunniest time of the year

  summer
• fruit grows on trees and plants

  summer
• young animals grow bigger and stronger

  summer
• starts when the day and night are the same length again, but on sept 21

  autumn
• the leaves change color and fall from the trees

  autumn
• some animals collect food before winter comes

  autumn
• begins on the shortest day of the year, december 21 north


  winter