Show:
Life and Death of Stars
The Milky Way and Other Galaxies
Origin of the Universe
Stars
Metrics and Scientific Notation
and Graphing
100
Stars produce energy through the process of _?_
fusion
100
Red-shift galaxies are used as evidence that the universe is __?__
expanding
100
To form a star, __?__ matter must be present. This is the dust and gas found between stars.
Interstellar matter
100
All stars __?__ their own light
emit/produce
100
When you graph, you place time on the horizontal axis. Which axis is this, x or y? And does that make time your dependent or independent variable?
x; independent
200
The energy produced by fusion must move from the core of a star to the outer layers. The energy moves through the processes of __?__ and __?__
radiation and convection
200
Clusters of galaxies form larger groups called
superclusters
200
The fate of our universe depends on the amount of _?_. If there is too much of this, the universe will end in the Big _?_
mass or matter/Crunch
200
Which of the following is/are true? a) Stars radiate heat energy. b) Stars radiate electromagnetic energy. c) stars radiate light energy
all are true
200
When graphing, you should give your graph a title. The title should show a relationship between your variables. What is that relationship?
y vs x
300
The lifespan of our average sized star (the sun) is approximately __?__ years.
10 billion years
300
Most stars in our galaxy will become _?_ because they are about the same size as our sun.
red giants (and then white dwarfs)
300
The sum of all matter and energy = _?_
the universe
300
What holds a star together?
gravity (the balance between the inward forces of gravity and outward forces of fusion)
300
What type of graph is best at showing a trend?
Line or bar
400
The hottest part of the sun is the __?__ which has a temperature of about 15,000,000 K
core
400
Name the type of galaxy with a central bulge and arms: _?_. Name the galaxy lacks a well-defined shape: _?_
spiral; irregular
400
The big bang theory states that the universe began with a gigantic explosion __?__ years ago
13-15 billion
400
Our star appears __?__ because that is the color which corresponds to its peak wavelength in the visible spectrum
yellow
400
What type of graph is best for figuring out parts of a whole?
pie chart
500
The composition of a star can be identified by __?___
spectral lines
500
When galaxies are moving away from us, the light from them seems to change color. It is __?__ - shifted due to __?__ wavelengths.
red; longer
500
The fate of our universe depends on __?__
mass
500
__?__ resemble stars, are very bright and very distance. Their name means, "star-like"
Quasars
500
Scientific and Standard Notation... Solve the following: 5.10x10^6 m = _?_; .000056 mm = _?_; 4.00 x 10^-3 mm = __?__; 4,500,000 cm = _?_
5,100,000 m; 5.60x10^-5 mm; 0.0004 mm; 4.50 x 10^6 cm