The reality that the Earth has moved alengthy its orbit in the time it took to revolve once is the factor for .

You are watching: If the star polaris has an altitude of 35°, then we know that

A) Precession

B) Seasons

C) The place of the Celestial equator

D) The difference in between solar and also sidereal time

E) Earth"s 23.5-degree tilt

The twelve constellations the solar System bodies relocate through are the


A) galactic equator

B) indications of the zodiac

C) equatorial constellations

D) nodes of the Ecliptic

E) stperiods of heaven

When the Moon is directly opposite the Sun in the sky, its phase is .

A) First or 3rd quarter

B) full

C) waxing or waning crescent

D) new

E) waxing or waning gibbous

When a planet"s orlittle takes it closest to the Sun, it"s dubbed .

A) aphelion

B) crossing the ecliptic

C) vernal equinox

D) perihelion

E) none of these; a planet"s distance from the Sun never changes

Kepler"s first law worked, wbelow Copernicus" original heliocentric model failed, because Kepler defined the orbits as .

A) roughly the Sun, not the Planet.

B) complex, through epicycles to account for retrograde motions.

C) a lot bigger than Copernicus had actually envisioned.

D) Elliptical, not circular.

E) Both A and also C are correct.

The force of gravity varies through the


A) product of the two masses.

B) inverse of the distance separating the 2 bodies.

C) inverse square of the distance separating the 2 bodies.

D) Both A and also B are correct

E) Both A and C are correct.

A Planet orbits our sunlight at 4 times the distance of the Earth (4 AU). The period of its orlittle bit is:

A) 4 years

B) 8 years

C) 16 years

D) 64 years

Blackbody radiation from star A peaks at shorter wavelength AND has actually greater intensity than blackbody radiation from star B. This means:

A) Star A is moving toward us and also so is blue-shifted family member star B.

B) Star A is moving away from us and also so is redshifted loved one to start B.

C) Star A has a greater temperature than star B.

D) Star A has a lower temperature than star B.

The time for the Moon to orbit Earth, loved one to the stars is .

A) 18 years, 11.3 days

B) 123 hrs, 56 minutes

C) 29.5 days

D) about 7 days

E) 27.3 days

If the distance in between two asteroids is doubled, the gravitational force they exert on each other will certainly .

A) 1/16 as great

B) likewise be doubled

C) be half as great

D) be one fourth as great

E) be four times greater

A circular orlittle bit would have an eccentricity of .

A) in between 0 and also 0.5

B) infinity

C) between 0.5 and also 1

D) specifically 1.0

E) 0

The two forms of electromagnetic (E-M) radiation that endure the least atmospheric opacity are .

A) visible light and also radio waves.

B) ultraviolet and infrared waves.

C) microwaves and radio waves.

D) X and also gamma radiation.

E) visible light and also infrared waves.

That Polaris will not always be the pole star is because of .

A) the sidegenuine day being shorter than the solar day

B) the Solar winds blowing the Earth farther amethod from the Sun

C) precession moving the celestial pole

D) the Moon following the ecliptic, instead of the equator

E) the Earth"s revolution being slightly much less than exactly

What are constellations?

A) Groups of stars making an apparent pattern in the celestial sphere

B) Ancient story boards, usemuch less to modern astronomers

C) groups of stars gravitationally bound and also appearing cshed together in the sky.

D) Groups of galaxies gravitationally bound and cshed together in the sky

E) Apparent groupings of stars and also planets visible on a given evening.

Electromagnetic radiation:

A) deserve to behave both as a wave and also as a ppost.

B) is the same as a sound wave

C) has only the properties of waves

D) has nopoint in widespread via radio waves

E) deserve to just take a trip in a thick medium

If the wavelength of a beam of light were to double, exactly how would certainly that impact its frequency?

A) The frequency would be four times l

B) The frequency would be two times larger

C) The frequency would be two times smaller

D) The frequency would certainly be four times smaller

E) Tright here is no relationship between wavesize and frequency

Ultraviolet radiation is tough to observe generally because:

A) Earth"s setting easily absorbs it

B) no space-based telescopes operate at ultraviolet wavelengths

C) just the lowest-mass stars emit ultraviolet light

D) incredibly few objects emit at ultraviolet wavelengths

An absorption spectrum is brought about by:

A) Blackbody radiation

B) Emission of pholoads at particular frequencies

C) Absorption of electrons at certain frequencies

D) Absorption of photons at certain frequencies

E) None of the above

The speed of light in a vacuum is:

A) 300,000 m/s

B) 300,000 mph

C) 300,000 km/s

D) 300,000,000 mph

E) boundless

How do the wavelength and frequency of red light compare to the wavelength and also frequency of blue light?

A) Red light has actually a much longer wavesize and also greater frequency than does blue light.

B) Red light has actually a longer wavelength and also lower frequency than does blue light.

C) Red light has actually a much shorter wavelength and also better frequency than does blue light.

D) Red light has actually a shorter wavesize and also lower frequency than does blue light.

Which of the following lists various types of electromagnetic radiation in order of enhancing wavelength?

A) radio waves, infrared, visible, ultraviolet, X-rays

B) gamma rays, ultraviolet, visible, infrared, radio waves

C) gamma rays, X-rays, infrared, visible, ultraviolet

D) X-rays, infrared, visible, ultraviolet, radio waves

E) radio waves, ultraviolet, visible, infrared, gamma ra

A red photon has a wavesize of 650 nm. An ultraviolet photon has actually a wavesize of 250 nm. The energy of an ultraviolet photon is ________ than a red photon.

A) 2.6 times larger

B) 6.2 times larger

C) 2.6 times smaller

D) 6.2 times smaller

Which primitive attempted to measure the circumference of Earth? (and came exceptionally close to the contemporary value!)

A) Aristotle

B) Eratothenes

C) Plato

D) Aristarchus

Although Copernicus relocated the Sun to the facility of the Solar System, he kept

A) Planet at the facility, simply in a different area.

B) unidevelop movement.

C) circular orbits.

D) two of the above.

Which of the complying with did Galileo not observe?

A) The rings of Uranus

B) Sunspots on the Sun

C) The phases of Venus

D) The craters and mountains on the Moon

If the star Polaris has actually an altitude of 35 levels over the northern horizon, then we understand that:

A) our longitude is +55 degrees.

B) our latitude is +55 degrees.

C) our longitude is +35 levels.

D) our latitude is +35 levels.

Match the terms via their descriptions.

A) The imaginary aircraft that

intersect both the Planet and also ____ Sun. In various other words, the airplane that the Sun rests on as watched from Earth.

B) The suggest that exhas a tendency from ____ Earth"s north pole out right into outer area.

C) The interarea of the Celestial ____ Equator and Ecliptic Plane

in the time of our spring time.

D) An imaginary aircraft that exoften tends from the Earth"s equator into outer area.

E) The longest day of the year.

1. Vernal Equinox

2. Summer Solstice

3. Celestial Equator

4. Ecliptic Plane

5. North Celestial Pole

A) 4. Ecliptic plane

B) 5 North celestial pole

C) 1 vernal equinox

D) 3 Celestial equator

E) 2 Summer solstice

To watch the biggest variety of stars in one night, one would want to be at ___.

A) the north pole

B) the south pole

C) 45 levels north or southern of the equator

D) the equator

D) the equator

In primitive Egyptian times, ___ was the pole star.

a) Vega

b) Polaris

c) Betelguese

d) Thuban

d) Thuban

Ptolemy"s version of the cosmos was

a) geocentric

b) had circular orbits

c) contained epicycles

d) all of the above

d) every one of the above

The solar mechanism does not contain ___.

a) planets

b) a star

c) Kuiper Belt objects

d) galaxies

d) galaxies

which of the complying with is FALSE?

a) A clinical theory is an undiscussed truth.

b) If constant trial and error of a hypothesis mirrors it to be valid, it might come to be an accepted theory.

c) A hypothesis must constantly have one or even more testeady predictions.

d) A clinical theory might eventually be prstove wrong as soon as researchers gain new information.

a) A scientific concept is an unquestioned reality.

Light from the Sun takes about ___ to reach Planet.

a) 8 seconds

b) 8 minutes

c) 8 hours

d) 8 years

b) 8 minutes

One of the nearemainder stars to the Sun is Alpha Centauri, whose distance is 4.4 light years ameans. How long does it take light to travel from Alpha Centauri to Earth?

a) 1.25 secs

b) 8.3 minutes

c) 4.4 years

d) 600 years

c) 4.4 years

Evidence has displayed that the physical legislations of nature

a) adjust once objects relocate at high rate.

b) stay the very same throughout the age of the cosmos.

c) depends on the mass of the objects connected.

d) are the exact same all over in the cosmos.

d) are the very same anywhere in the world.

A light year is a meacertain of

A) none of the over.

B) rate.

C) mass

D) distance.

D) distance.

The language of scientific research is

a) Greek

b) mathematics

c) calculus

d) Java.

a) Greek

On the cosmic timeline compressed dvery own to a single year, enhance each occasion to the approximate month that they happen.

__ Nov

__ May

__ Oct

__ Dec 31st, evening

a) the Milky Way forms

b) the Earth forms

c) complex life creates people 4. d) come into existence

c : Nov

a : May

b : Oct

d : Dec 3first, evening

The fact that scientific transformations take area suggests that

(a) all the science we know is wrong.

(b) the science we understand now is even more correct than it was in the previous.

(c) all knowledge about the world is loved one.

(d) the laws of physics that govern the universe keep altering.

(b) the scientific research we understand currently is more correct than it was in the previous.

We are located approximately

(a) at the facility of the Milky Way.

(b) close to the center of the Milky Way.

(c) about 2/3 from the center of the Milky Way.

(d) at the farthest outskirts of the Milky Way.

(c) about 2/3 from the center of the Milky Way.

Telescopes where a lens is its primary facet to form a photo are called

A telescopes. Telescopes that usage a mirror to develop a picture, and also are even more extensively used, are called B telescopes.

Refracting, reflecting

Radio telescopes are much bigger than visual-wavesize telescopes because

(a) radio waves are smaller sized than visual wavesize light.

(b) the frequency of radio light is much better than the frequency of visible light.

(c) radio waves are better energy waves than visible light.

(d) radio waves are larger than visual wavelength light.

(d) radio waves are larger than visual wavelength light.

Which two spectral home windows are transparent in Earth"s environment (that is, electromagnetic radiation in this region deserve to conveniently reach the surface of the Earth)?

( ) radio

( ) far-infrared

( ) visible

( ) ultraviolet

( ) x-ray

Radio, x-ray

The single the majority of vital amount of a telescope is

(a) its focal length.

(b) its magnification.

(c) its light gathering capacity.

(d) the diameter of the eyeitem.

(c) its light gathering ability.

Astronomers mostly favor a mirroring over a refracting telescope because

(a) of the lack of chromatic aberration.

(b) its easier to develop a huge mirror than a comparable dimension lens.

(c) mirrors are much easier to assistance than lenses.

(d) All of the over are valid reasons.

(d) All of the over are valid reasons.

The light gathering power of the Keck telescope (with its 10-m diameter mirror) is ___ than that of a 2m showing telescope. (The numbers describe the diameter of the primary mirror.)

(a) 25 times

(b) 10 times

(c) 8 times

(d) 100 times

(a) 25 times

The finest way to watch the facility of the galaxy (i.e. with a bunch of dust and also gas) is by utilizing a ___ telescope.

(a) x-ray

(b) visible light

(c) infrared

(d) ultraviolet

(c) infrared

Telescopes vary in their precision of information in a photo, or the sharpness of a photo. This attribute of a telescope is called its .


Jupiter"s rotational axis is tilted 3 levels via respect to its orbital aircraft. If Earth"s axis had this tilt (fairly than its 23.5 level tilt), then the seasons on Planet would be

(a) much more extreme

(b) a lot less extreme

(c) would vary substantially from year to year

(d) not enough indevelopment to make a general statement

(b) much much less extreme

Why is the summer solstice not the hottest day of the year (in the northern hemisphere)?

(a) The Earth"s precession balance out the periods so that the hottest day and also the summer solstice carry out not enhance up anyeven more.

(b) It takes time for the Planet to warm up, so it is still obtaining warmer also after the summer solstice has passed.

(c) The Earth is still retaining warmth from the previous year"s summer solstice, so the hottest day will certainly precede the summer solstice this year and each succeeding year.

(d) The summer solstice is often attached through cloudy skies, so the Earth will rarely reach its hottest allude that same day.

(b) It takes time for the Earth to heat up, so it is still getting warmer also after the summer solstice has actually passed.

On which day of the year does the Sun reach its northernmost point in the sky?

(a) Vernal equinox

(b) Summer solstice

(c) Autumnal equinox

(d) Winter solstice

(b) Summer solstice

Total eclipses of the Moon should occur at:

(a) new moon

(b) full moon

(c) first quarter

(d) last quarter

(b) full moon

As regarded from Planet, we always watch the very same side of the Moon dealing with us. This implies the Moon need to take about how long to spin on its axis?

(a) about 24 hours

(b) about one week

(c) about 2 weeks

(d) around a month

(d) around a month

Leap years happen because

(a) the Earth"s orbital period about the Sun is decreasing.

(b) the Earth"s orbital period is 365.24 days.

(c) the Gregorian calendar includes only 11 months.

(d) the Planet increases in its orbit when it comes closest to the Sun.

(b) the Earth"s orbital period is 365.24 days.

Why do we not watch a solar eclipse eextremely month as soon as the Moon is new or a lunar eclipse every month as soon as the Moon is full?

(a) The Moon"s orbital airplane is not perfectly aligned through the ecliptic, so the Moon won"t directly pass in front of the Sun or in the Earth"s shadow every radvancement.

(b) A solar and also lunar eclipse actually does take place every brand-new or full moon. However, the brightness of the Sun and also the dimness of the Moon make it really tough to tell that it"s happening when it does.

(c) The Moon is as well small to be viewed blocking out the Sun. So unmuch less the Moon is orbiting close to the Earth, we will certainly not check out an eclipse every brand-new or full moon cycle.

(d) Since the Earth is revolving around the Sun and also the Moon is revolving roughly the Earth, the Moon hregarding play "catch up" eexceptionally lunar cycle. So we will not check out eclipses as regularly as the Moon revolves around the Planet.

(a) The Moon"s orbital plane is not perfectly aligned via the ecliptic, so the Moon won"t straight pass in front of the Sun or in the Earth"s shadow eincredibly rdevelopment.

The strongest tides are ___ tides.

(a) high

(b) low

(c) spring

(d) neap

(c) spring

At around what time does the complete Moon rise

a) 4 pm

b) sunset

c) midnight

d) sunrise

b) sunset

Kepler determined that the planets orlittle the Sun in ellipses with the Sun located

A) in the center.

B) at one focus.

C) in between the 2 foci.

D) none of the over are correct.

B) at one focus.

The rela"onship in between the distance of a planet from the Sun and its orbital period is offered by

A) 2 E=mc .

B) Kepler"s second regulation.

C) the legislation of inertia.

D) Kepler"s third law

When a spinning ice skater pulls in their arms from a prolonged positon, they spin much faster. This demonstrates the Conservation of .

angular momentum

According to Newton"s 2nd Law, in a two object system (e.g. star & planet, or truck & person), the force on the smaller object is _______ the force on the larger object.

a) bigger than

b) smaller sized than

c) equal to

d) not related to

c) equal to

The reaction pressure to the Earth pulling on you is the pressure of the Moon on you.

a) the force of the moon on you

b) the force of you pulling up on the Planet.

c) non-existent

d) the Sun pulling on you

b) the force of you pulling up on the Earth.

If the Sun were twice as substantial, the gravitational force in between the Sun and the Earth would

a) decrease by 4

b) decrease by 2

c) increase by 2

d) increase by 4.

c) boost by 2

If the distance between a star and also a earth was unexpectedly cut in fifty percent, the attrenergetic gravitational pressure would certainly ___.

a) double.

b) triple

c) quadruple

d) readjust in a method unpredictable by any kind of equation.

c) quadruple

A straight result of Kepler"s second Law is

a) that planets orbit the Sun in ellipses.

b) that planets relocate slower as soon as close to the Sun.

c) that planets move slower as soon as far from the Sun.

d) that planets may be ejected from the Solar System.

c) that planets relocate slower as soon as much from the Sun.

The residential property of an object"s tendency to continue with their current state of mo"on is dubbed .


Which of the following proper"es of an astronaut changes once he/she is standing on the Moon, family member to when the astronaut is standing on Earth?

a) Weight

b) Mass

c) Inertia

d) All of the above

a) Weight

Which of the complying with is NOT an instance of a satellite of Earth?

a) The Moon

b) The Hubble Telescope

c) The Sun

d) Communication satellites

c) The Sun

As wavelength rises, the energy of photon ___ and also its frequency ___.

a) increases; decreases

b) increases; increases

c) decreases; decreases

d) decreases; increases

c) decreases; decreases

The diagram illustprices a light resource, a gas cloud, and also three different lines of sight. Along which line of sight would certainly an observer watch an absorption spectrum?

1) upper left

2) upper right

3) appropriate side

4) both top

5) none of them

3) best side

Which of the complying with photons lug the leastern amount of energy?

1) a blue photon of the visible spectrum, whose wavesize is 450 nm

2) an infrared photon, whose wavesize is 1000 nm

3) a red photon in the visible spectrum, whose wavelength is 700 nm

4) a microwave photon, whose wavelength is 0.01meter

4) a microwave photon, whose wavelength is 0.01meter

The diagram illustrates a light resource, a gas cloud, and three different lines of sight. Along which line of sight would an observer watch emission spectrum?

1) upper left

2) top right

3) appropriate side

4) both upper

5) none of them

2) top right

When an electron moves from a greater energy level in an atom to a lower energy level:

1) the atom is ionized.

2) a photon is emitted.

3) a continuous spectrum is emitted.

4) a photon is soaked up.

2) a photon is emitted.

The _____________ of a gas is a meacertain of the average speed of the pwrite-ups in the gas.

1) complace

2) temperature

3) blueshift

4) binding energy

2) temperature

Stars generally exhibit:

1) an absorption spectrum.

2) a fully consistent spectrum, lacking absorption or emission lines.

3) an emission spectrum.

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1) an absorption spectrum.

Which formula denotes how the rate of light is related to its wavelength and also frequency?

(a) c =λf

(b) c= wavelength/frequency

(c) c = frequency/wavelength

(d) c= 1/wavelength(frequency)

(a) c =λf

Rank the areas of the electromagnetic spectrum in order from longest wavelength to shortest. (longest=1, shortest=5)






__3__ visible

_2__ infrared

__1__ radio

__4__ x-ray

__5__ gamma ray

We can see (via our eyes) light that varies in wavesize from around 400 nm to 700 nm. (T/F)