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Download Astronomy Study Guide Key Vocabulary: Planet Jovian Moon
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Astronomy Study Guide Key Vocabulary: Planet Moon Star Comet Meteoroid Asteroid Asteroid Belt Rotation Revolution Orbit Jovian Terrestrial Northern Hemisphere Southern Hemisphere Seasons Light-year Gravity Tilt of Earth’s axis Sunrise Sunset Ellipse Moon Phases Waning Waxing Gibbous Crescent New Moon Full Moon First Quarter Moon Third Quarter Moon Moonrise Moonset Eclipse Lunar eclipse Solar eclipse Tide Topics: Celestial Bodies and Planets Compare and contrast different celestial bodies (planets, moons, comets, meteoroids, asteroids, stars). Know the differences between Jovian and Terrestrial planets. Compare distances between and diameters of the planets (You will not need to know actual numbers). Revolution vs. Rotation Know the difference between revolution and rotation. Know what each motion (revolution/rotation) causes on the Earth (seasons/day and night). Light-years Know that a light year is the DISTANCE light travels in one (Earth) year. Compare the distance light travels from the Sun to Earth to distances light travels from other stars (Nearest star is more than 4 light years away). Gravity Gravity is an attraction force between two objects that have a mass. Know the TWO factors that affect the gravitational force between two objects. All objects (that have mass) have a gravitational pull on every other object. TIDES are caused by the gravitational pull by the Moon (and the Sun) during the Earth’s rotation - Moon’s gravity pulls water and the Earth to create a bulge in the ocean Astronomy Study Guide Sun—Earth System Know what causes different places (in reference to Northern Hemisphere) to experience different SEASONS. Tilt on Earth’s axis Earth’s position in its revolution around the Sun When the Northern Hemisphere is tilted towards the Sun… NH receives _____________ direct sunlight SUMMER OR WINTER? When the Southern Hemisphere is tilted towards the Sun… NH receives _____________ direct sunlight SUMMER OR WINTER? Earth’s path around the Sun is an ELLIPSE (almost circular) Differences between Summer and Winter in the Northern Hemisphere length of day, sun rise/set position, height of the Sun in the sky, amount of direct sunlight, temperature Earth—Moon System Know why the moon rises and sets later each day over the course of a ~28 day period. Know why the moon appears to go through phases (different parts of the moon lit by the Sun) over the course of a ~28 day period. One half of the moon is always facing the Sun One half of the moon is always lit Know why the same half of the moon is always facing Earth (equal revolution/rotation periods) MOON PHASES For each phase, Know: name, appearance, location in its revolution around the Earth Earth—Moon—Sun System Know why we have TIDES in our oceans on the Earth. (Don’t need to know types of tides) When does an ECLIPSE occur? Earth, Moon, Sun align in a straight line Know the difference between a LUNAR and a SOLAR eclipse.
