Stars
This is the first stage in the development of a star.
Nebula
What is a light-year?
The distance that light travels in one year.
What is the definition of a comet?
Loose ball of ice and rock that usually have very long, narrow orbits.
What is the name of the theory scientists are using to currently explain how the universe started?
The Big Bang
What object has the largest mass in our Solar System?
The Sun
The life span of a star depends on its what?
Its Mass. Larger stars use energy faster and burn out quicker than smaller stars.
According to scientist and the Big Bang, the universe is constantly...
Expanding
As we have learned, the elecromagnetic spectrum contains all waves in the universe. What do we call the waves that we can see?
Visible Light
What is the definition of a wavelength?
Distance between the crest of one wave to the crest of another wave.
What is the asteroid belt?
Millions of rock floating in space in an orbital path. It separates the inner and outer planets.
Which property indicates the temperature of a star?
Color
Scientists believe that at the end of our Suns life, it will eventually do what?
Explode inside itself in a supernova
What is the definition of a moon?
A natural satellite is a celestial body in orbit.
What countries were involved during the space race?
USSR (Soviet Union) and America
In this structure of the sun, plasma that has been heated by the radiative zone moves to the surface, then begins to cool and sink. It repeats the cycle over and over.
Convection Zone
What four things do scientists look at when classifying stars?
Color, Temperature, Size, and Brightness
What are the different galaxies that we discussed during class, and what are their shapes?
Spiral = Spiral
Elliptical = Oval
Irregular = No specific pattern
Quasar = No specific patter
The range of wavelengths of electromagnetic waves. What is this word?
Spectrum
All objects in space emit, or give off energy. What is the name of this energy?
Electromagnetic Radiation
What is the difference between a refracting and reflecting telescope?
Refracting telescopes use lenses to bend and focus light, while reflecting telescopes use mirrors to bounce and focus light.
Order the sequence of a star from first to last.
From nebula to protostar, through the main sequence to red giant before ending as a white dwarf, neutron star, or black hole
Scientists say that when we look into the sky with a telescope, we are actually looking into the past. What do they mean by this?
When we look at something far away with a telescope, we are seeing the light that left it a long time ago, meaning we are seeing it as it was in the past, not as it is right now.
A round object that orbits the sun, and has cleared a region of orbit.
A planet.
What was the name of the space mission that first landed a man on the moon, and what was the name of the first person to walk on the moon?
Apollo 11, Neil Armstrong
150,000,000 KM