radio waves, infrared rays, visible light, ultraviolet rays
There are two bright stars in a constellation. One of the stars appears blue. The other star appears red. Which of the following is the BEST explanation for the difference in the stars’ color?
The blue star must be moving toward the Earth and the red star away from Earth.
The blue star must have a larger size compared to the red star.
The blue star must have a greater surface temperature compared to the red star.
The blue star must have a smaller mass compared to the red star.
A scientist observes that the sunspot cycle has just reached a maximum in the year 2014. On the basis of this observation, the scientist would then predict the next maximum in sunspot activity to occur in
The visible tail of a comet is caused by
Fusion reactions in the head of the
The Sun’s heat vaporizing the ice in the head of the comet
The Comet blocking the light of the Sun
The combustion reaction fueling the comet’s rocket
We are observing 2 stars. Star A is 29.8 Astronomical Units from the Earth, and Star B is 29.8 Light Years from the Earth. Which star is farthest from us?
Both stars are the same distance
Not enough information is provided
Jupiter, Saturn, Uranus and Neptune consist mostly of
Dense fluids and gasses like liquid hydrogen
gases similar to Earth’s atmosphere of nitrogen and oxygen
thin layers of dust
a mixture of rocky and molten material
None of the above
The letter C represents what grouping of stars on the HR Diagram?
Main Sequence Stars
List the stars from the most luminous star to the least luminous start based on their positions on the HR Diagram:
Sun, Rigel, Deneb, Antares
Proxima Centari, Sun, Sirius, Spica
SiriusB, Sirius, Rigel, Antares
Betelgeuse, Spica, Sirius, Proxima Centauri
Sirius, Beteleguese, Sun, Spica
Which sequence in the diagram correctly represents the relative size of the nine planets?
According to the graph, in 10,000 years, the Earth's obliquity will be near what?
Which season would the United States be experiencing when Earth is at aphelion?
If the area of A1 is equal to the area of A2, and the planet travels P1 to P2 and P3 to P4 in wqual times, which segment does the planet travel with the lowest velocity (slowest)
P1 to P2
P3 to P4
What phase is the moon in when it is in position 2?
What position would the moon need to be in for a lunar eclipse?
When the moon is in position 1, the tides would be described as ______________.
The celestial object(s) that creates the force3 to make ocean tides is:
The gravitationl attraction of the Earth
The gravitational amomentum of the Earth
The gravitationl attraction of the Moon
The gravitationl attraction of the Sun
Both C and D
If the trends shown by the graph continue, which statement best describes the next low tide at Boston that is expected to occur on Wednesday?
It will occur about 10 PM with a 2.8 m water level
It will occur about 3 AM with a 0.4 m water level
It will occur about 9 PM with a 2.6 m water level
It will occur about 6 AM with a 0.6 m water level
Compared to the climate conditions on the leeward side of a mountain range, the conditions on the windward side are usually-
Which is the primary factor for controlling climatic zones such as the tropics, desserts, and tundra?
Increased levels of greenhouse gases in the atmosphere result in
greater absorption of ultra violet radiation
greater absorption of infrared radiation
destruction of the thermosphere
depletion of the ozone layer
Which of the following statements is true?
The global climate has only started changing in the past few hundred years.
The global climate has been cooling steadily for the past few hundred thousand years.
The global climate has cooled and warmed many times over the past few hundred thousand years.
The global climate has been warming steadily for the past few hundred thousand years.
The temperature 125,000 years before present time was-
2ºC above normal
-6ºC below normal
-8º below normal
The current temperature values are-
staying the same
The Coriolis Effect is caused by-
change in wind speed.
the rotation of the Earth around the axis.
warmer water on the coast of Peru.
the revolution of the Earth around the Sun.
During an El Nino event, sea surface temperatures in the eastern equitorial Pacific Ocean
cannot be measured.
do not change.
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