Points Awarded 82.00Points Missed 18.00Percentage 82.0%1.If I fire a cannonball from the top of a mountain, traveling parallel to the Earth's surface at 14,000 miles per hour, it travels a great distance before falling to Earth. If instead, I fire it at 16,000 miles per hour it:A) travels the whole way to the Moon, orbits it once, then comes backB) travels a much smaller distance before falling to EarthC) travels completely around the Earth before returning to the mountaintopD) drops to Earth immediatelyE) travels exactly the same distance before falling to EarthPoints Earned: 0.0/2.0Correct Answer(s): C2.Which constellation is this?A) Virgo, the MaidenB) Scorpius, the ScorpionC) Ursa Major, the Great BearD) Orion, the HunterE) Cygnus, the SwanPoints Earned: 2.0/2.0Correct Answer(s): B3.Star A is 4000 K, and Star B is 8000 K. Which of the following is true about these two stars?A) Star A will give off more total light than Star BB) Star A will give off more blue light than Star BC) Star A will give off less total light than Star BD) Star A will give off more yellow light than Star BE) Star A will give off more red light than Star BPoints Earned: 2.0/2.0Correct Answer(s): C4.A solar eclipse can occur:A) during a quarter Moon onlyB) only during a full MoonC) only during a new MoonD) during any phase of the MoonE) during a new Moon or a full MoonPoints Earned: 2.0/2.0Correct Answer(s): C5.Which is the correct model to describe our Solar System?A) lunarcentricB) geocentricC) heliocentricD) planocentricE) random motionPoints Earned: 2.0/2.0Correct Answer(s): C6.If the mass of the Sun were smaller by a factor of 1/3, how would the force between the Sun and the Earth change?A) it would tripleB) it would remain unchangedC) it would decrease by a factor of threeD) it would be nine times moreE) it would decrease by a factor of ninePoints Earned: 2.0/2.0Correct Answer(s): C7.If the Moon orbited the Earth once every year instead of once every month:A) We would not see phases of the Moon and the Moon would always be new.B) We would see a full Moon only once a year.C) The year would be much longer.D) We would not see phases of the Moon and the Moon would always be full.E) We would see a full Moon once each day.Points Earned: 2.0/2.0Correct Answer(s): B8.One of the lines of Hydrogen has a wavelength of 121.6 nm. If a cloud of Hydrogen gas is moving AWAY from us at 200km/s, what will we detect?A) A continuous spectrum with an absorption line at exactly 121.6 nm.B) An emission line in the cloud's spectrum with a wavelength shorter than 121.6 nm.C) This cloud will not emit a spectrum at all.D) An emission line in the cloud's spectrum with a wavelength exactly 121.6 nm.E) An emission line in the cloud's spectrum with a wavelength longer than 121.6 nm.Points Earned: 0.0/2.0Correct Answer(s): E9.Which of the following is TRUE?A) In a vacuum, electrogmagnetic waves with a lower frequency travel slower than those with a higher frequency.B) Visible light makes up only a fraction of the entire electromagnetic spectrum.C) A blackbody emits all its radiation at a single wavelength or frequency.D) Electromagnetic waves cannot travel through empty space.E) Ultraviolet light has the shortest wavelength of any electromagnetic wave.Points Earned: 2.0/2.0Correct Answer(s): B10.What phase does the Moon experience at the time of a solar eclipse?A) third quarterB) waxing gibbousC) waning gibbousD) newE) fullPoints Earned: 2.0/2.0Correct Answer(s): D11.Stars that are in the same constellation:A) appear in all different directions around the sky.B) are all at close to the same distance from us.C) are all in orbit around the same larger star.D) are all in our Solar System.E) are likely to be at very different distances from us.Points Earned: 2.0/2.0Correct Answer(s): E12.What Moon phase can be seen 21 days after a Full Moon?A) Waxing CrescentB) New MoonC) another Full MoonD) Last QuarterE) First QuarterPoints Earned: 2.0/2.0Correct Answer(s): E13.How much of the total surface area of the Moon is illuminated by Sunlight during the Full Moon phase?A) one halfB) none of itC) all of itD) one quarterE) it varies from Full Moon to Full MoonPoints Earned: 2.0/2.0Correct Answer(s): A14.During a full Moon, where is the Moon relative to the Sun and the Earth?A) between the Sun and the EarthB) at a 45 degree angle from the SunC) at a 90 degree angle from the SunD) on the opposite side of the Sun from the EarthE) on the opposite side of the Earth from the SunPoints Earned: 2.0/2.0Correct Answer(s): E15.A mountain top is a good location for optical and infrared telescopes because the site:A) is above much of the atmosphereB) has warm weather which improves the performance of the instrumentsC) has high altitude which expands the glass in the mirror and makes it smootherD) is closer to astronomical objectsE) has cold weather which improves the performance of the instrumentsPoints Earned: 2.0/2.0Correct Answer(s): A16.What season is it in Sydney, Australia in August?A) Summer.B) Winter.C) Fall.D) Sydney doesn't experience seasons.E) Spring.Points Earned: 2.0/2.0Correct Answer(s): B17.What is emitted from an atom when one of its electrons makes a transition from a higher energy state to a lower energy state?A) electronB) neutronC) protonD) gravitonE) photonPoints Earned: 2.0/2.0Correct Answer(s): E18.I take the spectrum of a bright source of light in space and find it has absorption lines due to helium. What is the source of the helium lines in the spectrum?A) The light source must be made up of helium in its solid form.B) Behind the source there must be a star containing helium.C) There is a cloud of gas containing helium between us and the light source.D) Empty space is constantly emitting photons with wavelengths identical to those from helium gas.E) The Sun.Points Earned: 2.0/2.0Correct Answer(s): C19.What kind of telescope would have to be put in space to be effective?A) radioB) reflectingC) refractingD) opticalE) ultravioletPoints Earned: 2.0/2.0Correct Answer(s): E20.Compare the frequency of a gamma ray with that of visible light:A) The gamma ray has a larger frequency than visible light.B) All types of radiation have the same frequency.C) It is impossible to know how the frequencies differ.D) The gamma ray has a smaller frequency than visible light.E) The answer depends on the specific color of the visible light.Points Earned: 2.0/2.0Correct Answer(s): A21.On a planet whose Moon is in the same orbital plane as the planet's