Astronomy Study Guide August 16, 2019 | No Comments Using Tycho Brahe’s data,which scientist proposed three laws of planetary motion ? Kepler The true shape of planetary orbits was discovered by.. Kepler What is the most important safety rule ? Follow teachers instructions When is the daily tidal range greatest ? Spring Tides The center of mass where two or more celestial bodies orbit each other is known as.. Barycenter Which part of the Electromagnetic spectrum is the slowest ? Radio Waves The source of the sun’s energy is.. Nuclear Fusion Density is measured in which unit ? g/ml or g/cm^3 Seasons are caused by ? The tilting of the Earth on its axis rotates 23.5 degrees The geocentric model of the universe stated that ? The earth-centered What is the shape of a planet’s orbit ? Ellipses According to the article the shape of the earth is described as.. Obslate spheriod or ellipsoid The movement of the axis of a rotating body or wobble is known as ? Revolution What tool do you use to measure mass ? Blances,triple beam balance,and electronic scale In which step of the scientific method is information obtained through the senses ? 1.Define Problem Plants use sunlight to produce sugar through the actions of the chlorophyll through the process known as? Photosynthesis The energy of a photon is related to its.. wave length Earth axis slowly but continuously points in different directions a movement known as.. Precession What are the three types of galaxies ? Spiral,elliptical,irregular The turning or spinning of a body on its axis in known as.. rotation Based on the observed red shifts in the spectral lines of distant galaxies,astronomers conclude that ? The universe is expanding According to the third law of planetary motion,the period of revolution of a planet is related to the planet’s ? equal orbital period The gravitational forces of the moon and the sun causes this event ? Tides Gamma rays,x-rays,visible,and radio waves are all types of ? Electromagnetic radiation Mass is measured in which unit ? grams,kilograms,milligrams The study of the properties of light that depend on the wavelength is known as ? Spectroscopy The smallest daily tidal range occurs during which type of tide ? Neap tide According to the big bang theory the universe began about.. 13.7 billion years ago What field located on Earth helps us from harmful solar radiation rays ? ozone layer Our galaxy is called the ? Milky way Light seen in space is known as a ? Photon Volume is measured in what unit? L,m,cm^3,cc(mL) Which tidal pattern has two high tides and two low tides each day ? semidiurnal What movement of Earth is responsible for night and day? Rotation Which law states that each planet revolves so that an imaginary line connecting it to the sun sweeps over equal areas equal time intervals ? Newton 2nd law What is the most important lab safety procedure ? Follow teachers instructions Which scientist was the first to use the telescope in astronomy ? Galileo Earth is closest to the sun at a point called ? Perihelion Why does Earth experience precession ? direction in which the axis points changes How does earth move through space ? revoluton,rotation,precession what chemical reactions produce the suns energy ? nuclear fusion How is solar energy essential to plants ? solar energy converted into chemical energy through the process of photosythesis How does the suns energy affect food webs on Earth ? Plants use sunlight to produce Related posts: AP Exam Definitions Billion it ends, what’s the end? Cosmologists wrestle GCSE Medicine astronomy study guide Summary