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Transcript
Review game Students break into teams of 4 Each team will discuss and answer each question Scoring sheets are handed in at the end. 5 points to winning team 4 points for 2nd 3 points 3rd 2 points 4th 1 point for 5th 0 for 6th 1- What is the currently most accepted theory that describes the formation of the universe? Big bang theory 2- What type of galaxy is the milky way? Spiral galaxy 3- How long a star lasts is dependent only on its ____________ Mass 4- What are stars classified by? Size, brightness, and temperature 5- The hottest stars are what color? Blue-white 6- When a star has used up all of its hydrogen it will turn into what? Red giant 7- How are all galaxies moving in relation to every other galaxy? Away from each other 8- All the different types of electromagnetic waves are know as what? Electromagnetic spectrum 9- What is the name of the force that pulls the matter in stars together? gravity 10- The distance light can travel in one year is known as what? Light year 11- What type of galaxy has almost no gas or dust? Elliptical galaxies 12-How old is the universe? 14 to 15 billion years old 13- What types of telescopes gather and focus visible light? Reflecting and refracting telescopes 14- How do astronomers determine the chemical composition of a star? A spectrograph 15- A nebula is the place where _____________________ a star begins its life 16- A star more than 40 times the mass of the sun will end its life as a what? A black hole 17- A star is born when what starts to occur? Nuclear fusion 18- When a star has a slight back and forth motion, it is an indication of what? That it has a planet 19- When our solar system formed, the planets that lost most of their gases became the what? The rocky inner planets 20- Determining the temperature of a star is aided by using a what? A spectrograph 21- Binary stars that become dimmer at regular intervals are called what? Eclipsing binary stars 22- Parallax is a method used to measure what? The distance to nearby stars 23- What does the brightness of a star depend on? Size and temperature 24- Main sequence stars show that they increase in brightness as they increase in temperature on what kind of diagram? Hertzsprung-Russel diagram
