A STRONOMY T EST R EVIEW

H OW ARE YOU DOING IN P.E.S. SO FAR ? A. Awesome! This class is fairly easy! B. Doing okay…I could probably do better though. C. I have no idea what’s going on.

A RE YOU READY FOR TOMORROW ’ S A STRONOMY TEST ? A. YES! I understand everything on the study guide! B. I think so. I understand most of it. C. No…I have A LOT of studying to do. D. The test is tomorrow?!?!

W HICH OF THESE IS THE CURRENTLY ACCEPTED THEORY FOR THE ORIGIN OF THE UNIVERSE ? A. Steady-State Theory B. Big Bang Theory C. Inflationary Model

A CCORDING TO RECENT OBSERVATIONS, WHAT IS THE UNIVERSE ’ S CURRENT RATE OF EXPANSION ? A. Speeding up B. Slowing down C. Not changing

W HAT DOES REVOLUTION MEAN ? A. The amount of time it takes Earth to spin on its axis once. B. The oval-shaped plane of orbit C. The change in position in the sky as a result of the movement of the moon around Earth D. The amount of time it takes for Earth to go around the Sun once

W HICH TERM MEANS “ FARTHEST POINT FROM THE S UN ?” A. Perihelion B. Aphelion C. Perigee D. Apogee

H OW LONG DOES IT TAKE E ARTH TO COMPLETE ONE ROTATION ? A. 1 year B. 1 hour C. 1 day D. 1 month

W HAT DOES THE TERM “ WANING ” MEAN ? A. Increase in portion of sunlit side of the moon B. Decrease in amount of sunlit side of the Moon

T HE SUN, MOON, PLANETS, AND STARS RISE FROM WHICH DIRECTION ? A. North B. South C. East D. West

D URING WHICH PHASE OF THE MOON CAN YOU SEE THE ENTIRE SUNLIT SIDE ? A. New moon B. Waxing crescent C. First quarter D. Waxing gibbous E. Full moon F. Waning gibbous G. Third quarter H. Waning crescent

D URING WHICH PHASE OF THE MOON IS LESS THAN HALF THE LIT PORTION VISIBLE DURING INCREASE ? A. New moon B. Waxing crescent C. First quarter D. Waxing gibbous E. Full moon F. Waning gibbous G. Third quarter H. Waning crescent

W HAT IS A SOLAR ECLIPSE ? A. The changes of position of the moon in the sky B. When the moon passes directly between the Sun and Earth C. The time period from one sunrise or sunset to the next D. When the Moon passes through Earth’s shadow

W HAT DIRECTION DOES E ARTH ROTATE ? A. Counterclockwise B. Clockwise

M INIMUM DAYLIGHT HOURS, SUN AT ITS LOWEST POINT IN THE SKY, AND THE N ORTHERN H EMISPHERE TILTED AWAY FROM THE S UN ARE CHARACTERISTICS OF WHAT ? A. Winter Solstice B. Spring Equinox C. Summer Solstice D. Fall Equinox

W HAT DETERMINES ALL OF THE MAJOR CHARACTERISTICS OF A STAR ? A. Magnitude (Brightness) B. Luminosity (Energy) C. Temperature D. Mass

W HAT IS THE CORRECT STAR FORMATION ORDER ? A. Supergiant B. Black Hole C. Nebula D. Red Giant E. Protostar

W HAT IS A BLACK HOLE ? A. A massive explosion in space B. A small, extremely dense star that collapses in on itself C. Shell of gas that occurs after a star becomes a Red Giant D. Small, but extremely dense object with intense gravitational pull.

W HAT TYPE OF GALAXY IS THIS ? A. Barred Spiral B. Normal Spiral C. Elliptical D. Irregular

I N THE DIAGRAM, WHAT IS LABELED “C”? A. Halo B. Galactic Center C. Nuclear Bulge D. Disk

P LACE THE LAYERS OF THE S UN ’ S ATMOSPHERE IN THE CORRECT ORDER, FROM LOWEST TO HIGHEST. A. Corona B. Photosphere C. Chromosphere

W HAT CAUSES E ARTH ’ S TIDES ? A. Sun’s gravitational pull on Earth B. Moon’s gravitational pull on Earth C. Earth’s rotation on its axis D. Earthquakes cause the water to slosh back and forth

W HICH OF THE FOLLOWING IS NOT A CAUSE FOR OUR SEASONS ? A. Earth’s rotation B. Time zones C. Earth’s tilt D. Earth’s revolution

W HAT SHAPE IS E ARTH ’ S ORBIT ? A. Rhombus B. Circular C. Elliptical D. The Earth doesn’t orbit

W HICH TYPE OF STAR HAS A VERY LOW SURFACE TEMPERATURE, BUT HIGH MAGNITUDE ? A. White dwarfs B. Main sequence C. Giants D. Supergiants

T HE TERM APOGEE REFERS TO A. When the sun is at its closest point in orbit B. When the sun is at its farthest point in orbit C. When the moon is at its closest point in orbit D. When the moon is at its farthest point in orbit

W HAT TYPE OF GALAXY IS THIS ? A. Barred Spiral B. Normal Spiral C. Elliptical D. Irregular

W HAT IS A LUNAR ECLIPSE ? A. The changes of position of the moon in the sky B. When the moon passes directly between the Sun and Earth C. The time period from one sunrise or sunset to the next D. When the Moon passes through Earth’s shadow

W HY IS IT HOTTER IN THE SUMMER AND COLDER IN THE WINTER IN THE NORTHERN HEMISPHERE ? A. Northern hemisphere is tilted toward the Sun B. More hours of daylight in the summer C. Sun is directly overhead

A PAIR OF STARS THAT ARE GRAVITATIONALLY BOUND AND ORBIT EACH OTHER ARE CALLED A. Star clusters B. Constellations C. Binary stars D. Nebulas

S TARS ARE MADE OF A. 73 % Hydrogen, 25% Helium, 2% other elements B. 73 % Helium, 25% Hydrogen, 2% other elements C. 73 % Hydrogen, 25% Helium, 2% Carbon D. 73 % Hydrogen, 25% Helium, 2% Iron

W HAT PORTION OF THE ELECTROMAGNETIC SPECTRUM CAN WE SEE ? A. Radio waves B. Infrared C. Visible light D. X-rays

W HICH THEORY PROPOSES THAT THE UNIVERSE LOOKS THE SAME AS IT ALWAYS HAS, AND DOES NOT CHANGE WITH TIME ? A. Steady-state theory B. Big Bang Theory C. Inflationary Model

O UR TIMEKEEPING SYSTEM IS BASED ON THE A. Solar cycle B. Lunar day C. Solar day

I F A STAR IS LARGER THAN THE SUN, IT WILL A. Have a longer lifecycle than the Sun B. Have a shorter lifecycle than the Sun C. Have the same lifecycle as the Sun

N OW THAT WE ’ VE DONE THIS …I KNOW I SHOULD PROBABLY STUDY TONIGHT. A. Yes B. No