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WorksheetsPHYS 144 Test 2 Review
Total questions: 70
Worksheet time: 2hrs 20mins
Which planet from this list does not have a magnetic field?
Mars
Jupiter
Earth
Mercury
Pluto is not a planet because it's not large enough to be considered a planet.
True
False
How many regions in our solar system is it common to find asteroids?
1 region
2 regions
3 regions
Asteroids are common everywhere in the solar system
Asteroids are larger than meteoroids.
True
False
Some meteor showers happen at regular intervals because
Other bodies in space spew rock at us in a regular pattern
We pass through the orbit of destroyed comets orbiting the sun
Remnants of comets revolve around the sun with Earth's orbit just at a slower speed
Comets are launched into the solar system towards each from outer space at regular intervals
The Oort Cloud contains all the asteroids that take up the region of space between Mars and Jupiter
True
False
Which of these planets formed first in the formation of the solar system?
Earth
Venus
Mercury
All of them formed at approximately the same time
What is needed in order to form a solar system like ours?
Spinning gas
Spinning gas and heavy elements
A fully formed star that attracts matter
Rogue planets that encounter a star's gravitational pull
What does it mean that the solar system is differentiated?
The outer planets have much more heavier elements than the inner planets
The inner planets have much more heavier elements than the outer planets
The inner planets have much less lighter material than the outer planets
The proportion of materials in the solar system is constant from the inner to outer planets
What kinds of exoplanets are more easily detected?
Planets like Earth, small and in the habitable zone
Planets like Saturn, that have rings so they are easier to spot with telescopes
Planets like Mercury, which are closer in to their star
Planets like Jupiter, but very close to their star
The Doppler Effect can be used to find exoplanets.
True
False
If a planet is in the habitable zone, it means it is safe for biological life to inhabit.
True
False
Why do comets have two tails when they get closer to the Sun?
One is from melting ice from the heat of the sun and the other is ionized gas interacting with the solar wind
The solar wind flows in two directions at any given time, so we see two tails, one going each direction
One is from melting ice and the other is melting heavier materials that have a different trajectory based on their density
Comets only have one tail, silly!
What is the correct order of the inner planets from the sun outward?
Venus, Mars, Earth, Mercury
Earth, Mercury, Venus, Mars
Mars, Mercury, Venus, Earth
Mercury, Venus, Earth, Mars
What is the correct order of the outer planets from closer to the Sun outwards?
Jupiter, Saturn, Neptune, Uranus
Jupiter, Saturn, Uranus, Neptune
Neptune, Saturn, Uranus, Jupiter
Saturn, Neptune, Uranus, Jupiter
What is NOT true about our solar system?
All the planets revolve around the sun in the same direction
All the planets orbit very close to the ecliptic
It's differentiated
All the planets rotate on their axis in the same direction
Which planet would not have an aurora?
Mercury
Neptune
Jupiter
Uranus
Uranus and Neptune appear blue because of
water in their atmosphere
methane in their atmosphere
solid ice on their surface
dry ice on their surface
Which planet is considered to have a run-away-greenhouse effect?
Venus
Mars
Earth
Mercury
Venus has a longer solar day than solar year.
True
False
Which planet has no moons?
Venus
Mars
Uranus
Saturn
Which planet has the hottest average surface temperature?
Mercury
Jupiter
Venus
Mars
We can tell Mercury's surface is very old because
Evidence of geological activity
It doesn't have a magnetic field
There's an abundance of catering
It is very small
Which planet has the highest albedo?
Jupiter
Uranus
Earth
Venus
Which planet is about the same size as Earth?
Mars
Saturn
Mercury
Venus
Mars has geological features on its surface, indicating at some point it was geologically active.
True
False
The largest volcano in the solar system is on Earth.
True
False
There is substantial evidence that says there is water on Mars.
True
False
The Carbon Cycle is important for life because
it helps keep the planet insulated, maintaining a relatively constant temperature
it helps clear out the toxic chemicals in the air, which helps planets and animals flourish
it helps the planet retain its magnetic properties, without the carbon interacting with our atmosphere, we would be more affected by the solar wind
it's not helpful, it's actually harmful as it releases particulates into the air
As rocks heat up, they absorb ____ carbon dioxide.
Less
More
The same
It depends on the rock
What is the largest moon in the solar system?
Luna (our moon)
Titan
Triton
Ganymede
Which of the following is NOT A difference between the inner and outer planets?
The inner planets are spaced closer together than the outer planets
The inner planets are smaller than the outer planets
The inner planets revolve faster than the outer planets
The inner planets rotate in the opposite direction of the outer planets
All the outer planets have rings.
True
False
Jupiter's visible different colored stripes are due to
different layers of the atmosphere showing
magnetic interactions with the gas on the surface
different elements in the top later of the atmosphere
Unlike Earth, Jupiter's aurora is constantly glowing.
True
False
What is the most volcanically active body in the solar system?
Venus
Mars
Io
Europa
What two moons are thought to have liquid water oceans under their surface?
Callisto and Europa
Europa and Enceladus
Ganymede and Enceladus
Callisto and Triton
Why are Saturn's rings so visible?
They contain material left over from the formation of the solar system that didn't fall into Saturn's surface
A moon of Saturn constantly spews water vapor into the space surrounding Saturn
They contain mostly heavy elements such as iron that are very reflective
What is the strangest thing about Uranus?
It doesn't have a magnetic field, despite being a gas giant
It spins on it's side, unlike all the other planets
It contains completely different material than the other outer planets
It doesn't have any moon, despite it's mass
Which moon in the solar system has liquid lakes and rivers, much like Earth.
Titan
Triton
Ganymede
No moon has rivers and lakes like Earth!
What defines the "surface" of a gas giant?
The place where the atmospheric pressure is equal to that on the surface of the Earth
Where you first encounter particles in the atmosphere
The place where light can be reflected off of
The inner solid core where the pressure is high enough to change the gas into rock
The gas giants have much more mass than Earth, and therefore are much more dense.
True
False
All planets are differentiated.
True
False
The surface temperature of the sun is in the millions of degrees.
True
False
The luminosity of the sun changes as you move farther away from it.
True
False
Hydrostatic equilibrium means
the push outward of pressure equals the pull inward of gravity
the amount of pressure in a body of water increases as you move down
the atmosphere of a planet or moon is at a constant density
the layers of the sun are created due to the difference in energy transfer
What is the hottest (meaning highest temperature) layer of the sun's atmosphere?
Photosphere
Chromosphere
Corona
Transition region
The sun gets its energy from nuclear fusion, which happens all throughout the volume of the sun.
True
False
Nuclear fission takes small elements and breaks them apart to create energy.
True
False
Nuclear fusion results in a larger mass of the end products, and this causes energy to be released.
True
False
Granules on the surface of the sun are evidence of
nuclear fusion
convection
sun spots
magnetic field interactions
Why can't we normally see the solar corona?
Due to coronal holes, it's not very large
The light of the surface of the sun overpowers it
It doesn't give off light so we can't see it
It moves too fast, so we would never be able to see it but with very high speed cameras
Spicules occur in what layer of the sun?
Photosphere
Chromosphere
Coronoa
Convection Zone
The "surface" of the sun is responsible for the color that we see when we look at the sun. This layer of the sun we see is called the Chromosphere, or "colored sphere".
True
False
The solar wind is leeching off of the sun at all times.
True
False
A larger number of sunspots indicates
more solar activity
more nuclear fusion happening in the core
a higher Photosphere temperature
low solar activity
The sun flips its magnetic field a full 360 degrees approximately every 22 years.
True
False
Sunspots occur because
Magnetic field lines pierce through the Photosphere
Solar flares exchange energy from the solar surface
Coronal holes cool the surface of the sun
Spicules absorb energy from the corona
The umbra is the cooler part of a sunspot.
True
False
During a full solar cycle, sunspots tend to start to form at the ______ and then move towards the ______.
poles, equator
equator, poles
left side, right side
upper region of the atmosphere, lower region of the atmosphere
Prominences always become coronal mass ejections.
True
False
Solar flares are dangerous because they
give off x-ray and gamma ray radiation that can penetrate the atmosphere of Earth
give off energetic particles that can interact with our satellites
create coronal holes that increase the amount of solar wind
cause fusion reactions on the surface of the sun
Coronal holes are regions where the sun's magnetic field extends into interplanetary space.
True
False
What is not associated with solar activity?
Granules
CME's
Solar Flares
Sunspots
The Earth's magnetic field is the same shape as a bar magnet's magnetic field.
True
False
Geomagnetic storms happen when the interplanetary magnetic field is
directed to the south
directed to the north
directed perpendicular to the Earth
all of these
The Earth has radiation belts around it which contain very high energy charged particles because
the Earth slowly pushes out radioactive material from the surface due to greenhouse gases
energetic particles that are trapped during geomagnetic storms
the breakdown of a comet that was made up of radioactive materials
satellites around the Earth slowly lose mass from interactions with the sun's rays and spew off radiated particles
The reason that the aurora is different colors is because
the layers of the atmosphere have different elements
the layers of the atmosphere are different temperatures
the layers of the atmosphere are different densities
Space weather is the study of
The Earth-Sun environment and how solar activity can affect our technology
The Earth-Moon environment and how tides affect the weather on Earth
The Earth-Sun environment and how the solar activity on the Earth is causing climate change
The near Earth environment and how satellites move through our atmosphere due to weather conditions
What is one dangerous space weather event that can happen on Earth?
corrosion in pipelines underground
increased amount of x-ray radiation entering the atmosphere
an increase in overall temperature of the Earth
solar wind particles falling to the Earth and contaminating our water supply
