Download Universe CBA Review - cms16-17

Name _____________________________________________
Word Bank:
Black Hole,
Period _____
UNIVERSE CBA REVIEW Main Sequence,
Nebula,
Neutron
Date ________
MOD
Supernova,
White Dwarf
1.) _____________ This is a cloud of gas and dust where a star first starts to form.
2.)
3.) _____________ When a massive, high mass star dies, it can sometimes result in this type of
violent, star explosion.
4.) _____________ Our sun is one of these on the H-R diagram…another name for an average, star.
5.)
6.) _____________ Sometimes, instead of a violent death, a star just kind of fizzles out and withers
away into this tiny, dim lit core of a star.
7.)
8.) ____________ Very dense objects with gravitational forces so strong that even light can not
escape.
9.) There are two types of stars: gigantic, high mass ones and smaller, low mass stars. List the order of
events for each star’s life cycles.
HIGH MASS Stars:
NEBULA
MAIN SEQUENCE/BLUE
_________________
SUPERNOVA
NEUTRON STAR OR BLACK HOLE
LOW MASS:
NEBULA
MAIN SEQUENCE
_______________
WHITE DWARF
RED
DWARF
10.) After supernova, really large stars still have enough mass to create a leftover black hole that can
begin to suck in everything around it. What invisible force is responsible for creating this deadly
rip in the universe?
a. Gravitational
b. Magnetic
c. Tensional
11.)
12.) Write the following in order from brightest to dimmest star. –3.6, 4.8, 1.2 (SN page 39)
Brightest _________
_________
_________ Dimmest
13.) List the possible star colors in order of increasing temperature. (SN page 40)
Yellow
Red
_________
_________
White
_________
_________
___
14.) IDENTIFY AND DESCRIBE the three different types of galaxies. (textbook p. 272)
Type of Galaxy
Description
LIKE A FLATTENED FOOTBALL OR OVAL
ANYTHING ELSE; NO DEFINED SHAPE
SHAPED LIKE A HURRICANE
EXAMPLE: MILKY WAY
15.) Name and describe the major scientific theory for the formation of the Universe.
BIG BANG THEORY: STARTED WITH AN EXPLOSION AND HAS BEEN EXPANDING OUT
FOREVER SINCE THEN
16.) List the 3 main pieces of evidence that support this theory?
a. ALL THE GALAXIES ARE MOVING AWAY FROM US LIKE THEY HAVE BEEN EXPLODED
OUTWARDS FROM A CENTER AS SEEN FROM THEIR:
a. Red Shift
b. Blue Shift
c. Lack of Shift
b. COSMIC BACKGROUND RADIATION FILLS ALL OF SPACE.
c. ENERGY CAN TURN INTO MATTER
17.) Match the importance of each of the following scientists in Astronomy
a. Newton
i.
Discovered Galaxies (Group of stars travelling through
space together.)
b. Einstein
ii.
Discovered Gravity (Force of attraction between objects.)
iii.
Theory of Relativity (Motion is relative to the observer and
the object being observed)
c.
Hubble
18.) What is a light year?
a. Time
A measurement of:
b. Distance
c Mass
19.) Alpha Centauri C is 4.22 light years from Earth (40.09 trillion km). Alpha Centauri B is 4. 36 light
years from Earth.
Which star’s light will reach Earth first
20.) Stars get their energy from the process of nuclear Fusion. What two elements are involved in the
process of nuclear fusion? (p. 41 in SN) __________________ and __________________
21.) The Andromeda galaxy has a blue shift. What does that mean in reference to the Milky Way?
22.) When a scientist looks at a galaxy that is 12 billion light years away and is red shifted, what does
that tell you about the galaxy?
23.) What is the name of the effect caused by motion of an object causing wavelengths to compress in
front of it and expand behind it?
Use the diagram below to answer the following questions.
24.) What is the name of the above diagram that shows the brightness and temperature of the stars?
25) On the above diagram label each type of star (Blue, Main Sequence, Red Giant, White Dwarf)
26) Label the five stars’ temperature (hot, cold, or average) and magnitude (bright, dim, or average).
1.:
2:
3:
4:
5:
27.) Which of those stars most resembles the sun?
28.) The star in the top right hand corner is a good example of which category of stars?
29.) What tool would scientists use to analyze the light from a far off star to determine whether it had
hydrogen, helium and or other elements?
30.) Which kind of Electromagnetic Spectrum wave would be used to study each of the following?
Black holes
Jupiter
Background Radiation
Nebulae
Temperature
EMS Review
31.) Draw and label the 7 types of electromagnetic waves in the EMS.
32.) Draw a wave and label 1 wavelength. Draw a 2nd wave with a higher frequency.
33.) What type of EMS wave has the longest wavelength? _____________________
34.) Does infrared or x-ray waves have a longer wavelength? __________________
35.) What type of wave has the highest frequency in the EMS? __________________
36.) Draw and label the visible light spectrum
400nm
700nm
37.) Redraw the following absorption spectrum to show a red shift.
38.) Would your above drawing represent a star moving towards or away from Earth.
Explain.
39.) Explain why an astronaut can hear someone on Earth while they are on the moon,
but they would not be able to hear someone next to them.