IQ Astronomy is the study of: 1. Atoms and molecules 2. Planets and moons 3. Stars and galaxies 4. Everything.

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Presentation transcript:

IQ Astronomy is the study of: 1. Atoms and molecules 2. Planets and moons 3. Stars and galaxies 4. Everything

IQ 4. Everything is the best answer! Astronomy is actually the study of everything we can know about our universe. This includes atoms and molecules, as well as stars, galaxies, clusters of galaxies and the nature of the universe itself.

IQ A light-year is a unit of distance. T F

IQ True! A light-year is the distance light travels in one year. The speed of light is c = 300,000 km/s. One year has 31,536,000 s. So, one light-year = 31,536,000 s X 300,000 km/s = 9,460,800,000,000 km Now you know why we use light-years instead of km!

IQ Can’t someone do something about all those big numbers on the previous IQ? –Yes –No

IQ The correct answer is Yes! As a special one-time offer, if you ask your professor about “big numbers” within the next 60 minutes, you will learn how to manipulate big numbers fearlessly - at no additional cost! Remember to ask now! This offer won’t last forever!

Remember! As a courtesy to other students, the professor, and to keep us from getting kicked out of here: No eating or drinking anywhere in the LodeStar Astronomy Center Turn off cell phones during class