Download Sun and Stars Review Sheet

Sun and Stars Review Sheet
Name:____________
Constellations
1. What are constellations?
2. What is this constellation called? (There are more than two correct names for it)______________________
3. Can the same constellations be seen throughout the year? Why or why not?
4. Can the same constellations be seen no matter where you are on Earth? Why or why not?
Electromagnetic (EM) Spectrum, Spectra of Light, and Telescopes
1. What is light a form of?
2. What is Electromagnetic radiation (EMR)?
3. Match the definitions from the right with the terms on the left.
Terms
Definitions
___ Radio Waves
A. Helps you change the channels on your TV
___ Microwaves
B. Found in space and nuclear explosions
___ Infrared
C. Used to see your bones
___ Visible Light
D. Used to pop popcorn
___ Ultraviolet
E. When they move from one energy level to the next, they emit electromagnetic radiation
___ X-Rays
F. Sometimes it behaves like a wave, and sometimes like particles
___ Gamma Rays
G. Used to transmit radio and television signals, as well as cell phone signals
___ Electrons
H. Contains the colors of the rainbow
___ Radiation
I. Occurs naturally in sunlight; most of it is blocked by the ozone layer
4. A. What is a red shift of light?
B. What causes light to red shift?
5. What is a spectroscope?
6. What happens to light as it goes through a prism?
7. A. What are the three types of spectra?
B. What can we learn from each type?
8. What are some benefits of using space probes/ space telescopes instead of ground based telescopes?
9. A. What do telescopes “capture” through their lens?
B. Why do telescopes need to be different sizes?
Stars (General Information, Types, Properties)
1. What are stars?
2. What are stars made of?
3. Could we land on a star? Why or why not?
4. How do stars produce energy?
5. Why are some stars brighter than others?
6. Why do stars twinkle?
7. How did the spectral classification system develop?
8. Fill out this chart about the characteristics of stars we can learn by studying their light.
Temperature
Composition
What It Tells Us
What It Tells Us
9. A. What are the 7 spectral classes of stars in order?
Motion
What It Tells Us
B. What makes these stars different from each other?
10. What is the relationship between color and temperature when it comes to stars?
11. Put these star colors in order from hottest to coldest: Yellow, Blue, Red, White
12. Using the reference spectra in the chart, answer the following
questions.
a. What is the wavelength of blue light (in Angstroms)?
b. What is the wavelength of red light (in Angstroms)?
c. What is the color of each star in the diagram to the right?
d. What is the relationship between the color of a star, and the
wavelength of most of its light?
13. Below is a Hertzsprung-Russell diagram, which graphs stars
based on Luminosity and Temperature.
a. Which color of stars are the hottest?
b. Which color of stars are the coolest?
c. Which size stars are the most luminous?
d. Research our Sun, then plot it and label it on
the graph.
e. According to this graph, which types of stars
are most common?
Life Cycle of Stars
1. Vocabulary Matching- match the term on the left with its definition
____ black dwarf
a. star left at the core of a planetary nebula
____ white dwarf
b. a red super giant star explodes
____ nebula
c. what a medium-mass star becomes at the end of its life
____ protostar
d. a large cloud of gas or dust in space
____ supernova
e. exerts such a strong gravitational pull that no light escapes
____ neutron star
f. the earliest stage of a star’s life
____ black hole
g. the remains of a high mass star
2. Write these stages in order for a low/ average mass star: Red Giant, Protostar/ Fusion begins, Stellar Nebula, Black
dwarf, Main Sequence, White dwarf, Planetary Nebula
3. Write these stages in order for a high mass star: Black hole or Neutron Star, Protostar, Supernova, Red Supergiant,
Massive star, Stellar Nebula
4. Why do different stars go experience different life cycles?
Sun
1. How does the Sun compare to the Earth and other objects in the solar system?
2. How does our Sun compare to other stars in terms of size and color?
3. A) Is our Sun a star?
B) How old is the Sun?
C. What type of star is the Sun?
4. What is the life cycle of our Sun going to be? What will our Sun become once it leaves the Main Sequence?
5. Will our Sun explode as a supernova? Why or why not?
6. What are sunspots, and why are they darker than the rest of the Sun?
7. What is solar wind, and why is the Earth protected from it?
8. What are auroras, and what are they caused by?
Measuring distances in space
1. What is absolute magnitude?
2. What is apparent magnitude?
3. How are absolute magnitude and apparent magnitude similar and different?
4. How can the magnitude of a star help us determine its distance from Earth?
5. a) What is the inverse-square law?
b) What does this law tell us about stars’ distance from Earth?
6. Define each of these units:
a) Astronomical Unit (AU)
b) Lightyear (ly)
7. a) What is parallax?
b) How can we use parallax to determine the distance to a star?
Poster Review Questions- on back of the paper
Or crossword puzzle, google form puzzle,
Could potentially be a student choice activity: posters, form, crossword, et.
Other topics to cover: standard candles,