Please enter something

Chapters 14,15,16

question

On the video regarding the big bang, how soon after the big bang was the “background microwave radiation” we see today present? -380,000 years -2.5 million years -200 million years -1.6 billion years
answer

380,000 years
question

On the video regarding a “light year” how far away is the nearest star? -4 light years -80 light years -150 light years -6000 light years
answer

4 light years
question

On the video regarding stellar evolution, what atom can the biggest stars fuse into? -Hydrogen -Helium -Magnesium -Iron
answer

Iron
question

Which of the following is evidence for the existence of “dark matter” in the universe? -The rate of expansion of the universe is speeding up. -Stars eventually use up their fuel and stop shining. -The outlying stars in a galaxy appear to rotate more rapidly than expected. -The background temperature of the universe is 3K
answer

The background temperature of the universe is 3K
question

Red giants are enormously bright because they are extremely hot. -True -False
answer

False
question

Stonehenge is an ancient observatory built in -ancient Babylon. -England. -the Euphrates river valley. -Greece.
answer

England.
question

About how old is the universe? -6.0 billion years -10.5 billion years -13.7 billion years -20 billion years
answer

13.7 billion years
question

The greater the apparent magnitude, the brighter the star. -True -False
answer

False
question

A light-year is a measure of astronomical distance. True False
answer

True
question

Compared to magnitude 1 star, a star with a magnitude of 2 is -more than twice as bright. -less than half as bright. -ten times as bright. -less than one tenth as bright.
answer

less than half as bright.
question

If the density of the universe is less than a critical value, then -it might eventually stop expanding. -it might continue expanding forever. -it could expand to a fixed size and remain. -there’s probably less dark matter than luminous.
answer

it might continue expanding forever.
question

Which type of star has the shortest life span? -large, very massive -small, not very massive -one on the main sequence -a star about the size of our Sun
answer

large, very massive
question

Nuclear fusion reactions occur in what part of a star? core radiation zone convection zone All of the above.
answer

core
question

The Milky Way galaxy is spiral. elliptical. globular. spherical.
answer

spiral.
question

A protostar is an accumulation of gases in outer space that will become a star. True False
answer

True
question

The eventual fate of our Sun is to become a neutron star. a supernova. a white dwarf. a black hole.
answer

a white dwarf.
question

Which of the following star colors has the highest temperature? blue white yellow red
answer

blue
question

The difference in brightness between two stars is related to the amount of light and energy produced by the stars. relative size of the stars. distance to the stars. All of the above.
answer

All of the above.
question

On the short video regarding galaxies, what number of stars did they say our own Milky Way Galaxy contained? 100 million stars 500 million stars 200 billion stars 600 billion stars
answer

200 billion stars
question

In the video regarding “star classification” our Sun’s classification was shown to be a ____. O5II E2I G2V X5IV
answer

G2V
question

Most of the mass of the solar system is found in the terrestrial planets. the gas giants. the comets and asteroids. the Sun.
answer

the Sun.
question

One of the following planets is denser than the others Saturn. Jupiter. Uranus. Earth.
answer

Earth.
question

A comet’s tail always trails behind it throughout its journey through the solar system. True False
answer

False
question

Strong evidence about former existing life has been found on Mars. Venus. meteorites. None of the above.
answer

None of the above.
question

The Sun has hundreds of times more mass than all the rest of the solar system. True False
answer

True
question

The elements heavier than iron in Earth were formed by the supernova explosions of other stars. True False
answer

True
question

Earth, other planets, and the rest of the solar system formed at the same time as the rest of the stars in the galaxy. millions of years ago from elements that have always existed. from a giant nebula millions of years ago. billions of years ago from elements created in previously existing stars.
answer

billions of years ago from elements created in previously existing stars.
question

The surface temperature of Venus is so high because it is so much closer to the Sun. its day is so long that the side facing the Sun gets very hot. it has many active volcanoes that heat up the atmosphere. its atmosphere traps much of the incoming solar energy.
answer

its atmosphere traps much of the incoming solar energy.
question

Which of the following about Jupiter is not true? Jupiter is mostly made of light elements like hydrogen and helium. Much of the planet is composed of hydrogen compressed so greatly that it is liquid. The colored bands in Jupiter’s atmosphere are believed to result from atmospheric convection. Because Jupiter is mostly hydrogen, it is only slightly more massive than Earth.
answer

Because Jupiter is mostly hydrogen, it is only slightly more massive than Earth.
question

Which of the following is true about the surface of Mars? There are numerous active volcanoes. It is much too cold for liquid water to exist. The polar ice caps are frozen water. The greenish areas are due to low, scrubby vegetation.
answer

It is much too cold for liquid water to exist.
question

A dwarf planet of the solar system is Ceres. Pluto. Eris. All of the above.
answer

All of the above.
question

Photographs of the surface of Mars provides evidence that liquid water once flowed on its surface. True False
answer

True
question

The asteroids forming a belt between the orbits of Mars and Jupiter were prevented from forming a planet by the strong gravitational field of Jupiter. True False
answer

True
question

Which of the following statements about comets is not true? Comets are thought to be dirty snowballs. The birthplace of comets is a cloud of icy, dusty aggregates beyond the solar system. Most comets have elliptical orbits with periods around one hundred years. The tail of a comet consists of dust and evaporated ices.
answer

Most comets have elliptical orbits with periods around one hundred years.
question

The atmosphere of Venus is predominantly carbon dioxide. nitrogen. methane. water vapor.
answer

carbon dioxide.
question

The International Astronomical Union (IAU) is the governing authority over names of celestial bodies. True False
answer

True
question

It is impossible to theorize about the formation of the solar system because no other planetary systems can be observed. True False
answer

False
question

Which of the following is NOT a name of a spacecraft that was sent to Mars? Curiosity Opportunity Spirit Messenger
answer

Messenger
question

On the video regarding the Mars rovers, why was Spirit called the “bad sister?” Spirit stopped calling home Spirit landed far from her designated landing spot Spirit got stuck in a small crater Spirit’s solar cells did not work at 100%
answer

Spirit stopped calling home
question

On the video regarding Mars rovers, what does NASA do to spacecraft on their way to Mars to give them more stability? The spin the spacecraft They put the spacecraft in a hibernation mode They turn the spacecraft away from the Sun They use lasers to continuously orient the spacecraft
answer

The spin the spacecraft
question

During our summer solstice, how many hour of daylight does the Antarctic Circle receive? 0 6 12 24
answer

question

Evidence that Earth is rotating is provided by the motion of a pendulum. seasonal climactic changes. the varying solar day. the movement of the constellations.
answer

the motion of a pendulum.
question

On the Summer Solstice, the Sun rises south of due east, and sets south of due west. True False
answer

False
question

In the time 9:00 AM, the “AM” means after morning. after the meridian. astronomical motion. before the meridian.
answer

before the meridian.
question

A person traveling westward across the International Date Line gains a day. True False
answer

True
question

A lunar eclipse can only occur during which phase of the Moon? full 1st quarter last quarter new
answer

full
question

The average temperature of Earth is slightly lower in January because then Earth is at its greatest distance from the Sun. True False
answer

False
question

An apparent solar day is the interval between two consecutive solar noons. slightly longer than a sidereal day. rarely exactly 24 hours long. All of the above.
answer

All of the above.
question

The path of a plane flying due north from a spot on the equator would appear to continue due north. curve to the east. curve to the west. form an S-shaped curve.
answer

curve to the east.
question

During which phase of the Moon would we most likely see a solar eclipse? full first quarter last quarter new
answer

new
question

The slow wobble of Earth’s axis is called Coriolis. solstice. perigee. precession.
answer

precession.
question

The closest approach the Moon makes with the Earth is called apogee. True False
answer

False
question

For the last 3 billion years the surface of the Moon has been undergoing cratering from intense meteorite bombardment. experiencing widespread lava flows from the interior. experiencing both heavy cratering and widespread lava flows. relatively quiet.
answer

relatively quiet.
question

If your favorite constellation rose at 8:00 PM one night, when would it rise two weeks later? at 8:00 PM around 7:00 PM around 9:00 PM it depends on the constellation
answer

around 7:00 PM
question

South of the Antarctic Circle, the Sun appears directly overhead only once a year. directly overhead twice yearly. above the horizon all day at least once during December. above the horizon all day at least once during June.
answer

above the horizon all day at least once during December.
question

The findings from the Apollo space missions to the Moon support the idea that the Moon formed from the impact of Earth with a very large object. True False
answer

True
question

North of the Tropic of Cancer, the Sun appears directly overhead at noon never. daily. twice a year, at the equinoxes. twice a year, at the solstices.
answer

never.
question

The position of a spot on the floor made by a sunbeam traces out a “figure eight” pattern over the course of a year. True False
answer

True
question

The Julian calendar adjusted for the fact that Earth’s year was not exactly 365 days by adding a day every fourth year. True False
answer

True
question

Neap tides result when the Moon is aligned with the Sun and Earth. full. new. in a quarter phase.
answer

in a quarter phase.
question

Remnants of asteroids or comets that survive the trip through Earth’s atmosphere to strike the surface are called meteors meteorites meteoroids “shooting stars”
answer

meteorites
question

Which of the following statements about the length of a planet’s day is true? The closer the planet is to the Sun, the shorter is its day. The more massive the planet, the longer its day. The four gas giants barely rotate at all. None of the above.
answer

None of the above.
question

Venus, the sister planet to Earth, has an atmosphere whose composition is similar to that of Earth. True False
answer

False
question

Which of the following planets has a length of day most similar to Earths? Mercury Mars Venus Jupiter
answer

Mars
question

Which one of the following planets does not belong with the others? Mars Jupiter Mercury Venus
answer

Jupiter
question

In the video regarding the Mars rovers, what is the speaker’s favorite video taken on Mars? A video of a shooting star A video of the sunset A video of the 2 Martian moons crossing overhead A video of rain seen off in the distance
answer

A video of the sunset
question

The temperature on the surface of Venus is hot enough to melt lead. True False
answer

True
question

It is known that if there is sufficient dark matter in the universe, then the universe will eventually stop its expansion. True False
answer

False
question

When a massive star exhausts its supply of hydrogen fuel, it becomes a supernova. True False
answer

False
question

According to the video on a “light year,” you can’t look in the far reaches of space without doing what? Seeing the warping of space time. Looking back in time. Understanding the universe is very big. Seeing the blackness of space.
answer

Looking back in time.
question

The expected life span of a star the size of the Sun is 10 billion years. 1 billion years. 100 million years. 10 million years.
answer

10 billion years.
question

On the video regarding spectral evolution, to what planet’s orbit will our Sun eventually expand out to? Mercury Venus Earth Mars
answer

Earth
question

On the short video of galaxies, who was the scientist who used a telescope to find that some stars were actually galaxies? Edmond Halley Edwin Hubble Galileo Galilei Isaac Newton
answer

Edwin Hubble
question

The location of the celestial meridian is determined by your location. True False
answer

True
question

The absolute magnitude considers the brightness of a star when at a standard distance. True False
answer

True
question

In which part of a newborn star does the fusion reaction occur? the core. the radiation zone. the convection zone. in all parts of the star.
answer

the core.
question

Nearby stars appear to move ____ relative to Polaris. clockwise counter-clockwise straight by in looping circles
answer

counter-clockwise
question

As viewed from space above the North Pole, Earth rotates clockwise. True False
answer

False
question

When does the equator get the most sunlight? (Mark all answers that apply) Spring Summer Autumn Winter
answer

Summer
question

We always see the same side of the Moon because the Moon doesn’t rotate. the Moon’s periods of rotation and revolution are the same. the Moon’s orbit is circular. the period of rotation of both Earth and the Moon is the same.
answer

the Moon’s periods of rotation and revolution are the same.
question

The axis of Earth’s rotation will not always point towards Polaris due to precession. True False
answer

True
question

What is unique about the spring and autumn equinoxes? The Sun is directly overhead at the poles. The Earth moves fastest in its orbit. Everyone on Earth gets 12 hours of day and nighttime. No high tides exist in the northern hemisphere.
answer

Everyone on Earth gets 12 hours of day and nighttime.
question

How frequently does the Sun appear directly overhead in Mexico City (≈ 20˚ N latitude)? daily once a year twice a year four times a year
answer

twice a year
question

The fact that there are seasons on Earth is largely due to the tilt of Earth’s axis. the changing distance of Earth from the Sun during its orbit. the precession of Earth’s axis of rotation. the Coriolis effect.
answer

the tilt of Earth’s axis.