astronomy 1010 Questions and answers 100% guaranteed PASS

more than all the sand on all the beaches on Earth - ANSWERIf you represented each star by a grain of sand how much sand would it take to represent all the stars in the universe? size of a typical planet - ANSWERWhich of the following is the smallest? there are universal laws of physics that govern the universe. - ANSWERThe Cosmological Principle can be summarized to say... The observable universe is 14 billion light years in each direction so the actual universe is greater than 14 billion light years across. - ANSWERIs the actual size of the universe larger than 14 billion light years? Light travels at a constant speed. - ANSWERAstronomers observe a supernova explosion that is 100 lightyears away and they deduce that the star exploded 100 years ago. What principle of light guides this knowledge? 8 - ANSWERApproximately how many minutes does it take light to travel from the Sun to the Earth? the sun - ANSWERThe star that provides energy for life on Earth is... the number of protons in its nucleus. - ANSWERFor scientists, an element (like gold) is defined by the universe - ANSWERWhich of these is the largest? the idea that scientists should prefer the simpler of two models that agree equally well with observations - ANSWERWhat is meant by Occam's Razor? 100 billion - ANSWERRoughly how many stars are in the Milky Way Galaxy? the distance that light travels in one year. - ANSWERa light year is... make an observation - ANSWERWhich step of the scientific method must occur first? the average distance between the Earth and the Sun. - ANSWERThe Astronomical Unit (AU) as defined by astronomers is are further investigated and questioned by other scientists - ANSWERUsing the scientific method, scientists develop new theories that... are a part of the Milky Way galaxy. - ANSWERWhile stargazing and pointing out constellations to your friends you explain that all the stars we see 3600 - ANSWERHow many arcseconds in one degree? 1300 km/hr - ANSWERApproximately how fast are you moving with the rotation of Earth? 100 kilometers 100 lightminutes 100 lightyears- correct 12 parsecs - ANSWERWhich distance is the longest? predict human events. - ANSWERThe ancient goal of astrology was to? the one that is farthest away - ANSWERSuppose we look at a photograph of many galaxies. Assuming that all galaxies formed at about the same time which galaxy in the picture is the youngest? observations that can be tested or proven to be true - ANSWERWhat do scientists mean by verifiable observations? in late December - ANSWEROn a cosmic calendar in which the history of the universe is compressed into 1 year when did the dinosaurs become extinct an explanation for a phenomenon that makes a prediction - ANSWERWhat is meant by a hypothesis? All galaxies are increasingly moving away from one another - ANSWERWhat do we mean when we say that the universe is expanding? you; Earth; solar system; Milky Way; Local Group; Local Supercluster - ANSWERWhich of the following has your address in the correct order? a generally well-established scientific theory or set of theories - ANSWERWhat is meant by a scientific paradigm? It will take me light-years to complete this homework assignment. - ANSWERWhich of the following statements does not use the term light-year in an appropriate way? 230 million years - ANSWERHow long does it take our solar system to complete one orbit around the Milky Way Galaxy? precession - ANSWERThe slow tipping of Earth's axis in a circle with a period of about 26,000 year is called: celestial equator - ANSWERThe projection of the Earth's equator on to the celestial sphere is known as the 18 degrees - ANSWERIf the Earth was tilted 18 degrees from vertical to the ecliptic plane instead of 23.4 degrees what is the angle between the celestial equator and the ecliptic? latitude of