ASTRONOMY TEST REVIEW

HOW 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.

ARE YOU READY FOR TOMORROW’S ASTRONOMY 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?!?!

WHICH OF THESE IS THE CURRENTLY ACCEPTED THEORY FOR THE ORIGIN OF THE UNIVERSE?

A. Steady-State TheoryB. Big Bang TheoryC. Inflationary Model

ACCORDING TO RECENT OBSERVATIONS, WHAT IS THE UNIVERSE’S CURRENT RATE OF EXPANSION?

A. Speeding upB. Slowing downC. Not changing

WHAT DOES REVOLUTION MEAN?

A. The amount of time it takes Earth to spin on its axis once.

B. The oval-shaped plane of orbitC. The change in position in the sky as a result

of the movement of the moon around EarthD. The amount of time it takes for Earth to go

around the Sun once

WHICH TERM MEANS “FARTHEST POINT FROM THE SUN?”

A. PerihelionB. AphelionC. PerigeeD. Apogee

HOW LONG DOES IT TAKE EARTH TO COMPLETE ONE ROTATION?

A. 1 yearB. 1 hourC. 1 dayD. 1 month

WHAT 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

THE SUN, MOON, PLANETS, AND STARS RISE FROM WHICH DIRECTION?

A. NorthB. SouthC. EastD. West

DURING WHICH PHASE OF THE MOON CAN YOU SEE THE ENTIRE SUNLIT SIDE?

A. New moonB. Waxing crescentC. First quarterD. Waxing gibbousE. Full moonF. Waning gibbousG. Third quarterH. Waning crescent

DURING WHICH PHASE OF THE MOON IS LESS THAN HALF THE LIT PORTION VISIBLE DURING INCREASE?

A. New moonB. Waxing crescentC. First quarterD. Waxing gibbousE. Full moonF. Waning gibbousG. Third quarterH. Waning crescent

WHAT 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

WHAT DIRECTION DOES EARTH ROTATE?

A. CounterclockwiseB. Clockwise

MINIMUM DAYLIGHT HOURS, SUN AT ITS LOWEST POINT IN THE SKY, AND THE NORTHERN HEMISPHERE TILTED AWAY FROM THE SUN ARE CHARACTERISTICS OF WHAT?

A. Winter SolsticeB. Spring EquinoxC. Summer SolsticeD. Fall Equinox

WHAT DETERMINES ALL OF THE MAJOR CHARACTERISTICS OF A STAR?

A. Magnitude (Brightness)B. Luminosity (Energy)C. TemperatureD. Mass

WHAT IS THE CORRECT STAR FORMATION ORDER?

A. SupergiantB. Black HoleC. NebulaD. Red GiantE. Protostar

WHAT IS A BLACK HOLE?

A. A massive explosion in spaceB. A small, extremely dense star that collapses

in on itselfC. Shell of gas that occurs after a star

becomes a Red GiantD. Small, but extremely dense object with

intense gravitational pull.

WHAT TYPE OF GALAXY IS THIS?

A. Barred SpiralB. Normal SpiralC. Elliptical D. Irregular

IN THE DIAGRAM, WHAT IS LABELED “C”?

A. HaloB. Galactic CenterC. Nuclear BulgeD. Disk

PLACE THE LAYERS OF THE SUN’S ATMOSPHERE IN THE CORRECT ORDER, FROM LOWEST TO HIGHEST.

A. CoronaB. PhotosphereC. Chromosphere

WHAT CAUSES EARTH’S TIDES?

A. Sun’s gravitational pull on EarthB. Moon’s gravitational pull on EarthC. Earth’s rotation on its axisD. Earthquakes cause the water to slosh back

and forth

WHICH OF THE FOLLOWING IS NOT A CAUSE FOR OUR SEASONS?

A. Earth’s rotationB. Time zonesC. Earth’s tiltD. Earth’s revolution

WHAT SHAPE IS EARTH’S ORBIT?

A. RhombusB. CircularC. EllipticalD. The Earth doesn’t orbit

WHICH TYPE OF STAR HAS A VERY LOW SURFACE TEMPERATURE, BUT HIGH MAGNITUDE?

A. White dwarfsB. Main sequenceC. GiantsD. Supergiants

THE TERM APOGEE REFERS TO

A. When the sun is at its closest point in orbitB. When the sun is at its farthest point in orbitC. When the moon is at its closest point in

orbitD. When the moon is at its farthest point in

orbit

WHAT TYPE OF GALAXY IS THIS?

A. Barred SpiralB. Normal SpiralC. Elliptical D. Irregular

WHAT 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

WHY 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 summerC. Sun is directly overhead

A PAIR OF STARS THAT ARE GRAVITATIONALLY BOUND AND ORBIT EACH OTHER ARE CALLED

A. Star clustersB. Constellations C. Binary starsD. Nebulas

STARS 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% CarbonD. 73 % Hydrogen, 25% Helium, 2% Iron

WHAT PORTION OF THE ELECTROMAGNETIC SPECTRUM CAN WE SEE?

A. Radio wavesB. InfraredC. Visible lightD. X-rays

WHICH THEORY PROPOSES THAT THE UNIVERSE LOOKS THE SAME AS IT ALWAYS HAS, AND DOES NOT CHANGE WITH TIME?

A. Steady-state theoryB. Big Bang TheoryC. Inflationary Model

OUR TIMEKEEPING SYSTEM IS BASED ON THE

A. Solar cycleB. Lunar dayC. Solar day

IF A STAR IS LARGER THAN THE SUN, IT WILL

A. Have a longer lifecycle than the SunB. Have a shorter lifecycle than the SunC. Have the same lifecycle as the Sun

NOW THAT WE’VE DONE THIS…I KNOW I SHOULD PROBABLY STUDY TONIGHT.

A. YesB. No