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In the picture, what type of tides is Earth experiencing?
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Spring tides
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Neap tides
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Weak tides
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Leap tides
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Mercury has a radius of 2440km and a mass of 3.30x10^23kg. What is Mercury's density?
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5.423x10^12kg/km^3
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5.423x10^11kg/km^3
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5,423kg/km^3
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5.42kg/km^3
Frage 3
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The Earth has a density of 5.52kg/L and a volume of 1.082x10^24L. What is the mass of the Earth?
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5.52x10^20kg
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52,000kg
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5.97x10^24kg
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5.11x10^-24kg
Frage 4
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If the Moon is in its First and Third Quarter phases, what type of tides is being experienced on Earth?
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Leap Tides
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Neap Tides
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Spring Tides
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Weak Tides
Frage 5
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Compute the mass of Jupiter given observations of the Galilean moons: the moon Io takes 1.796 days to complete an orbit, and it orbits at an average distance of 423,000 km (units are in days/km/kg, so use G = 4.98x10^-10)
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4.4x10^21kg
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1.035x10^27kg
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1.86x10^27kg
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1.081x10^27kg
Frage 6
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A galaxy is moving away from the Earth at a velocity of +100000m/s. To what wavelength would the H alpha line have shifted to? (assume the rest wavelength of H alpha is 656.25nm).
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457nm
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656.25nm
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0.218nm
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656.47nm
Frage 7
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There is a star with an observed wavelength of 645nm and a rest wavelength of 650nm. How fast is the star moving, and is it moving away or towards the Earth?
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-2.3x10^6m/s and moving towards the Earth
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2.3x10^6m/s and moving away from the Earth
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2.5x10^4m/s and moving towards the Earth
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-2.5x10^4m/s and moving away from the Earth
Frage 8
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There are two stars in a binary star system orbiting each other. Star Q is 10 solar masses and Star BB is 6 solar masses. They are 4 Au apart. How long does it take them to complete one orbit?
Frage 9
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Our lab has recorded a previously undetected electromagnetic pulse from deep space. Our equipment indicates that the pulse has an energy of 4.96x10^-28J. What is the pulse's approximate wavelength and then indicate placement on the electromagnetic spectrum?
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550nm and it would be Greenish-Blueish Visible Light
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1nm and it would be X-rays
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1000nm and it would be Infrared
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400nm and it would be Violet Visible Light
Frage 10
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The Sun produces energy by:
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Nuclear Fusion between Hydrogen atoms in its core
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Nuclear Fission between Hydrogen atoms in its core
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Nuclear Fusion between Helium atoms in its core
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Nuclear Fission between Helium atoms in its core
Frage 11
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What are the layers of the Sun from the innermost to outermost layer?
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Convection Zone, Core, Radiative Zone, Photosphere, Chromosphere, Corona
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Core, Radiative Zone, Convection Zone, Photosphere, Chromosphere, Corona
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Radiative Zone, Convection Zone, Core, Photosphere, Corona, Chromosphere
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Radiative Zone, Core, Photosphere, Corona, Convection Zone, Chromosphere
Frage 12
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As the Sun progresses through its life cycle, it will have __________ amounts of Hydrogen and ___________ amounts of Helium.
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Lower, Lower
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Higher, Lower
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Lower, Higher
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Higher, Higher
Frage 13
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How long does it take for a photon to reach the surface of the Sun?
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10 million years
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10 thousand years
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10 minutes
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100 years
Frage 14
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What are Solar Prominences?
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Cool, dark spots on the Sun's surface
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Solar winds or "belches" that spew photons towards the Earth
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A huge plume of glowing gas channeled by magnetic fields
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A winding up of the Sun's magnetic field
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True or False:
Coronal Mass Ejections can affected the Earth's communications, satellites, and even power grids.
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In this diagram, the Earth is experiencing Spring Tides.
Frage 17
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Some lab equipment has recorded a burst of electromagnetic energy with a frequency of 10^6Hz. What is the wavelength of this electromagnetic energy, and where does it fit on the electromagnetic spectrum?
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300nm and it is Blue Visible Light
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300nm and it is Ultraviolet Light
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1nm and it is X-rays
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1m and it is a Radio Wave
Frage 18
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The Solar Cycle is the change in Sunspot and Flare activity from year to year following approximetly an 11 year cycle.
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Sunspots cause Solar Flares, which are brief but bright eruptions of hot gas in the chromosphere.
Frage 20
Antworten
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Large, dark regions on the surfaces of the sun.
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Cooler than the surrounding surface.
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capable of making magnetic arcs that can channel solar prominences.
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All of the above
Frage 21
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The picture represents what type of spectrum, characterized by bright lines at certain wavelengths separated by darker regions in which little or no radiation is emitted?
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Absorption-line spectrum
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Electromagnetic spectrum
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Continuous spectrum
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Emission-line spectrum
Frage 22
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This picture represents an absorption-line spectrum, which results when light with a continuous spectrum passes through a cool gas.
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The longer the wavelength of light, the higher level of energy it carries.
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A blackbody is a theoretical object that reflects all the radiation falling on it.
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Wien's law states that the hotter a body is, the more strongly it will radiate at short wavelengths.
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A Red Giant Star is hotter than a Blue Giant Star.
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A continuous spectrum is spectrum in which the intensity changes smoothly with the wavelength, and all colors are present.
Frage 28
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According to Doppler Shift: Waves shorten as a source approaches the observer and lengthens as it recedes.
Frage 29
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The planets in order from closest to the Sun to furthest from the Sun follow which order?
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Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
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Mars, Venus, Earth, Mercury, Jupiter, Uranus, Neptune, Saturn
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Earth, Mercury, Venus, Jupiter, Mars, Neptune, Saturn, Uranus
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Jupiter, Saturn, Earth, Mars, Venus, Neptune, Uranus, Mercury
Frage 30
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The outer planets (Jupiter, Saturn, Neptune and Uranus) are also known as Terrestrial Planets.
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Venus is the largest of the terrestrial planets
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The orbits of the planets are roughly circular, although not quite.
Frage 33
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The asteroid belt in the solar system is located between which two planets?
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Earth and Mars
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Mars and Jupiter
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Jupiter and Saturn
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Saturn and Neptune
Frage 34
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The Kuiper Belt and the Oort Cloud are areas beyond Neptune where objects (asteroid, comets, dwarf planets..etc) exist, orbiting the Sun.
Frage 35
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Venus is odd among the planets because it:
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Has an sideways axis
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Is composed like a gas giant, but is between terrestrial planets
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Orbits the Sun opposite of the other planets
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Rotates slowly, and backwards in comparison to other planets
Frage 36
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Uranus' axis is nearly vertical, which is odd in comparison to the other planets, which axis' lie at distinct tilts.
Frage 37
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The Gas Giants have a much lower density in comparison to the Terrestrial Planets because:
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Only the Terrestrial Planets have large, solid iron cores
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The Gas Giants are made of solely lighter carbon gases
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The Gas Giants are very large with a large amount of mass
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The volume of the Gas Giants is very small
Frage 38
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The element Cooltonium has just been discovered. Scientist learn that it has a half-life of 20 years in which the parent atoms turn into another recently discovered element, Losertonium. A sample of Cooltonium has 10,000 atoms of Cooltonium and 0 atoms of Losertonium. How many atoms of Cooltonium will be left after 5 half-lives?
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312.5 atoms
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500 atoms
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.003125 atoms
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5,000 atoms
Frage 39
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We are able to get close to the age of the Solar System based off of meteorites found on Earth.
Frage 40
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Which is the correct order for the creation of the solar system (from earliest to latest)?
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The planets formed first by hot gases, the Sun then formed afterwards, the moons and other satellites were then captured by the Sun and Planets.
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The Sun formed first from hot gas, the Sun captured wandering planets, the planets captured wandering asteroids to make moons.
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The Sun formed first from hot gases, then the planets formed by condensation and accretion, and moons and satellites were later captured by the planets.
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The Sun formed, then the Sun spun off gas and dust which formed the planets, the planets spun off dust which solidified into moons
Frage 41
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Condensation occurs when a gas cools and its molecules stick together to form liquid or solid particles.
Frage 42
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The Earth is differentiated because its hot, molten state cooled very quickly.
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It is believed the Earth was bombarded by meteorites early in its formation.
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One way we detect exo-planets is through Doppler Shift.
Frage 45
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The Earth is made of layers. The order of these layers from innermost to outermost is:
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Solid core, liquid core, upper mantle, lower mantle, crust
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Liquid core, solid core, upper mantle, lower mantle, crust
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Solid core, lower mantle, upper mantle, liquid core, crust
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Solid core, liquid core, lower mantle, upper mantle, crust
Frage 46
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Convection taking place in the Earth's Mantle allows for Plate Tectonics which can significantly change the surface of the Earth.
Frage 47
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The bright, white areas on the moon are called:
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Maria
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Highlands
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Craters
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Rilles
Frage 48
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The Moon's large, smooth, dark areas are called:
Antworten
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Maria
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Rilles
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Highlands
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Craters
Frage 49
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The Maria are much older than the Highlands, as indicated by the large amounts of craters.
Frage 50
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Due to synchronous rotation, the same side of the Moon is always facing the Earth.
Frage 51
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What is the Greenhouse Effect?
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It is an effect where plants grow significantly better in certain location on the Earth
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It is a phenomenon caused by gases that traps heat in the Earth's atmosphere, keeping it warm.
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It is a protective layer that reflects all dangerous solar rays from impacting the Earth
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It is another name for the Earth's atmosphere