STAAR Review Category 3 - 8.8 ABC & 6.11B

8.8A Components of the Universe Stars The major characteristic 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 most closely represent the location of the Sun? W X Y Z The Earth is a member of the _ galaxy Milky Way Sol Earth Irregular Stars Skip to time stamp 2:17 What does the Hertzsprung-Russell 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 Match the definition with the term galaxy a very large group of stars held together by gravity. nebula a very large cloud of dust and gas. absolute magnitude A star's actual brightness, if viewed from a standard distance. apparent magnitude A star's brightness as seen from Earth What star characteristics are used to classify them on the H-R Diagram? (Select all the 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 that 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 What part of the electromagnetic spectrum can be observed with the unaided eye? Visible light Infrared Radio waves Gamma rays 6.11B Gravity The Solar System Gravity Which of the following increases the gravitational attraction between two objects? (Mark all that apply) Increases the distance between the objects Increase the mass of the objects Decrease the mass of the objects Decrease the distance between the objects Change the color of the objects Increase the orbital path of at least one of the objects Have objects with the exact same mass What keeps the Earth traveling in an elliptical orbit around the Sun instead of traveling in a straight line (as shown with the arrow)? The gravitational attraction between Earth and Venus The electromagnetic force between the surrounding planets The gravitational attraction between the Sun and the Earth The centripetal force of the Earth's moon Which of the following would have the greatest gravitational attraction between the two masses?