Personal Training-Event 5-Period 2

Master Earth's motion: rotation, revolution, seasons, moon phases, tides, stars!

8.7A - Rotation vs. Revolution Seasons Watch the video BEFORE answering the questions. It takes the Earth 24 hours to rotate on it's axis. It takes the Earth 365 days to revolve around the Sun. Use the image to answer the following questions. At which location is it daytime? A B AB At which location is it summer? A B AB At which location is it winter? A B AB The day and night cycle on Earth is caused by the Earth's rotationon its axis. The Earth is closer to the sun in winterand farther from the Sun in summer. The varying distance from the Sun to the Earth is notthe reason for the seasons.Seasons are caused by the 23.5 degree tiltof the axisand the revolutionof the earth round the sun. Use the diagram to identify the seasons. What is the season in the Northern Hemisphere in Position 1. spring summer winter fall Between position 1 2 do the days get shorter or longer? shorter longer What is the season in the Northern Hemisphere during position 2? spring summer winter fall Between positions 2 3 do the days get shorter or longer? shorter longer What is the season in the Northern Hemisphere during Position 3? spring summer winter fall Between positions 3 4 do the days get shorter or longer? shorter longer What season is it in the Northern Hemisphere during position 4? spring summer winter fall It takes 6 months to get from Position 2 to Position 4, and 9 months to get from Position 2 to Position 1. 8.7B Lunar Cycle Watch the video BEFORE answering the questions. It takes the moon 27.5 days to revolve around the earth at one time. The moon revolves around the earth in a counter-clockwise direction. A waxing gibbous is the moon phase that comes after a first quarter moon. Use the following to correctly label the diagram: full moon, new moon, first quarter, third quarter. Be sure to type it EXACTLY how it is written in the word bank!!! new moon third quarter first quarter full moon Label each moon phase. Use the word FIRSTand THIRDfor the quarter. CHECK YOUR SPELLING! (Gibbous) (Crescent) new moon waxing crescent first quarter waxing gibbous full moon waning gibbous third quarter waning crescent It takes the moon one week to get from Position 1 to Position 2. It takes the moon two weeks to travel from Position 2 to Position 4. It takes the moon one month to travel from Position 3 back to Position 3. Which word best describes the changes in the moon's appearance during the sequence shown above? Gibbous Waning Crescent Waxing What is the name of the phase of the moon in the picture? Third Quarter Waning Crescent First Quarter Half Moon 8.7C - Tides Watch the Video BEFORE answering the questions. Tides are caused by the gravitational pull of the moon and sun. The moon has the greater effect on the tides because it is closer to Earth. Which two positions bring higher than normal tides? Positions 1 2 Positions 1 3 Positions 2 3 Positions 2 4 Sring Tide Full Moon New Moon Neap Tide First Quarter Third Quarter 8.8A Components of the Universe Stars The major characteristics that determines the life cycle of a star is? The type of nebula that created it The mass of the star The color of the star The density of the star Which data table correctly classifies the galaxies picture above? On the image above, which letter would closely represent the location of the Sun? W X Y Z What does the Hertzsprung-Russel diagram tell us about the star Betelgeuse? It has a low surface temperature and a high luminosity It has a high surface temperature and a high luminosity It has a low surface temperature and a low luminosity It has a high surface temperature and a low luminosity What star characteristics are used to classify them on the H-R Diagram? (Select all that apply) Brightness (luminosity Location Temperature (color) Distance 8.8B The Sun Why is the Sun so much brighter than the other stars visible in the sky? It is closer to the Earth compared to other stars It is much warmer than the other stars It is much brighter than the other stars It is yellow The size of the sun is comparison to other main-sequence stars is? Smaller than almost all other stars Larger than almost all other stars Medium sized (average) The provided graphic represents a model of three different stars. Which model is the best representation of our Sun? The small blue star The medium yellow star The large red star Our Sun is not represented here 8.8C Electromagnetic Spectrum Electromagnetic Spectrum An object in space that cannot be seen is giving off waves that produce very large wavelengths. Which type of electromagnetic radiation is this object giving off? Radio waves Visible light Infrared rays Gamma rays