Download ASTRO REVIEW 14

NAME: ____________________________________________ DATE: _____________ BLOCK: _________
EARTH / ENVIRONMENTAL
REVIEW FOR ASTRONOMY TEST
KEY TERMS
Galaxy
Solar system
Planet
Orbit
Kepler's Laws
Revolution
Rotation
Precession
Nutation
Barycenter
Satellite
Red shift
Blue shift
Seasons
Gravity
Earths shape
(Spheroidal)
Circumference
Fusion
Fission
Electromagnetic
spectrum
Gamma ray
X-ray
Ultraviolet
Visible light
Infrared waves
TV waves
Radio waves
Radiation
Sun
Tilt
Axis
Magnetic field
Solar energy
Nebulae
Red Super Giant
White Dwarf
Black Dwarf
Black Hole
Super Nova
Protostar
HR Diagram
Parallax
Apparent Magnitude
Absolute Magnitude
Main sequence star
Neutron star
Pulsar
QUESTIONS
_____ 1. One astronomical unit averages about
a. 93 million Km b. 150 million Km c. 210 million Km
_____ 2. In the year 14,000, Earth’s axis will point toward
a. Polaris b. Vega
c. the Sun
d. the moon
_____ 3. What is the shape of a planet’s orbit?
a. circular b. irregular c. elliptical d. constantly changing
_____ 4. Which type of radiation has the shortest wavelength?
a. gamma rays
b. visible light c. x-rays
d. radio waves
_____ 5. The thin, red rim seen around the sun during a total solar eclipse is the
a. chromosphere
b. solar wind
c. corona d. photosphere
_____ 6. The measure of a star’s brightness is called its
a. parallax
b. color index
c. magnitude
d. binary
_____ 7. Which color stars have the highest surface temperature?
a. red
b. orange
c. yellow
d. blue
_____ 8. Which object has such a strong surface gravity that light cannot escape it?
a. super nova
b. red giant
c. black hole
d. nebula
_____ 9. What theory states that the universe began in a violent explosion?
a. Doppler effect
b. big crunch c. big bang
d. Hubble’s law
10. Compare and contrast the geocentric and the heliocentric models of the
universe.
11. Explain why the planets appear to have retrograde motion.
12. List and describe the 4 movements of the Earth.
13. Newton learned the orbits of planets are the result of what two forces?
14. What types of radiation make up the electromagnetic spectrum?
15. How do scientists determine the elements present in a star? Explain.
16. How can astronomers determine whether a star is moving toward or away
from Earth? Explain using details.
21. What is the structure of the sun? Give one characteristic of each layer.
22. How does the sun produce energy? Be through in your answer.
23. The H-R diagram shows the relationship between what two factors?
24. Describe the life cycle of the sun.
25. Describe the size and structure of the Milky Way Galaxy.