Astronomy

• The lunar cycle consists of eight distinct phases, including the new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent.
• Astrology- study of the influence of celestial bodies on human lives
• Astronomy- the study of celestial objects and phenomena
• Astronomy


  the study of celestial objects and phenomena
• Ephemeris


  a table that list exactly when and where an object will be in the sky
• Zodiac


  12 constellations. Used in Astrology as a main point of the effects celestial bodies have on human personalities.
• Hypothesis


  an educated guess
• According to Kepler's Third Law, how does a planet's mass affect its orbit around the Sun

  A planets mass has no affect on its orbit around the Sun
• ---- measures the speed and direction of on object

  Velocity
• What tides occur near the quater moons?

  Neap Tides
•  law of acceleration; it states that acceleration is proportional to force and inversely proportional to mass.

  Newton's Second Law
• What does temperature measure?

  The average kinetic energy in a substance
• What best describes the tides

  The gravitational force of the moon exerted on the Earth pulls the oceans with it
• __________ energy refers to light.

  radiative
• Why does a bowling ball fall faster than a feather when dropped from a tall building

  feather has more air resistance than a bowling ball
• At which lunar phases are tides most pronounced

  New and Full moons
• As long as an object is not gaining or losing mass, a net force on the object will cause a change in its

  velocity
• According to Newton's law of gravity, what would happen to Earth if the Sun were instantaneously replaced by a black hole of the same mass

  Earths orbit would not change
• the moon exerts more Tital force than the Sun
• The sun is at zinth or close to zineth when 


  the location is closest to the equator
• A star’s __________ coordinate measures its cardinal direction (N/S/E/W) along the horizon

  azimuth
• What was the definition of a planet according to Copernicus


  objects that orbit the sun
• Pleotomy model of the universe is

  Geocentric model
• __________ tells you how fast an object must be launched from a planet so that it never returns

  escape speed
• Newton's law of __________ says that the force is proportional to mass and inversely proportional to the separation between objects squared

  gravity
• According to Newton's law of gravity, if you triple the distance between two objects, then the gravitational force between them will


  Decrease by a factor of 9
• A total solar eclipse occurs when the Sun and moon are at opposition


  false
• How did Eratosthenes estimate the size of Earth in 240 B.C


  By comparing the maximum altitude of the Sun in two cities at different latitudes. (by looking at the shadow the sun casts on on a stick in the ground at two cities.
• Astronomers use __________ light to study solar flare activity in the Sun's atmosphere.

  ultraviolet 
• Astronomers use __________ telescopes to look through dust clouds at the baby stars forming inside them.

  infared
• Earth's atmosphere transmits visible light from space

  true
• Earth's atmosphere absorbs radio waves from space.

  false
• The effects of gravity are exactly equivalent to the effects of acceleration. 

   equivalence principle
• According to general relativity, time moves slower for people living in Denver, CO, compared to folks living in San Francisco, CA.

  false
• According to general relativity, how is time affected by gravity?

  Time runs slower in stronger gravitational fields. 
• What do we mean by dimension in the context of relativity?

  The number of independent directions in which movement is possible.