1. Origin of Modern Astronomy START EXIT Funded by Title V HIS Grant at LAMC and U.S Department of Education Corresponds to Ch 3 in book Astro by Seeds Prepared by: Julissa Garcia, Aramik Yousefian Hagop Hadjinian, Tatevik Grigoryan Activity director: Lilit Haroyan Faculty Advisor: Richard Rains

2. 1. What does Copernicus Heliocentric Universe Model state? HINT Ptolemy is the center of the universe Ptolemy is the center of the universe Everything revolves around the Earth Everything revolves around the Earth The Sun is in the center of the universe The Sun is in the center of the universe Everything revolves around the Sun Everything revolves around the Sun 12345687910Exit

3. HINT Ptolemy is the center of the universe Everything revolves around the Earth The Sun is in the center of the universe Everything revolves around the Sun Correct! next 1. What does Copernicus Heliocentric Universe Model state? 12345687910Exit

4. 1. What does Copernicus Heliocentric Universe Model state? Incorrect Helio has ties to the word Sun in Greek mythology and therefore implies that the heliocentric system has the sun in the center and planets rotate it. back next HINT 12345687910Exit

5. Helio…reminds me of… back 12345687910Exit

6. 2. Ptolemy s Geocentric Model states: HINT The Earth is next to a star cluster The Earth is next to a star cluster Everything revolves around the Earth Everything revolves around the Earth Earthlings are perfect Everything revolves around the Sun Everything revolves around the Sun 12345687910Exit

7. HINT The Earth is next to a star cluster The Earth is next to a star cluster Everything revolves around the Earth Everything revolves around the Earth Earthlings are perfect Everything revolves around the Sun Everything revolves around the Sun 2. Ptolemy s Geocentric Model states: Correct! next 12345687910Exit

8. 2. Ptolemy s Geocentric Model states: Incorrect Geocentric implies that everything centers the Earth. back next HINT 12345687910Exit

9. Geography is the study of the Earth back 12345687910Exit

10. 3. Which is Keplers second law? HINT Equal areas in equal times Equal areas in equal times Joan Keplers favorite song Joan Keplers favorite song F=ma All planetary orbits are elliptical All planetary orbits are elliptical 12345687910Exit

11. HINT Equal areas in equal times Equal areas in equal times Joan Keplers favorite song Joan Keplers favorite song F=ma All planetary orbits are elliptical All planetary orbits are elliptical Correct! next 3. Which is Keplers second law? ? 12345687910Exit

12. back next 3. Which is Keplers second law? ? Incorrect In our orbit sometimes we are closer to the sun and in some cases we are further, regardless of our distance the area in these angles will always be the same. backnext 12345687910Exit

13. It involves an orbit in different times back 12345687910Exit

14. 4. How did Ptolemy explain retrograde motion? HINT 80s Retro music Planets moving in loops out of orbit Planets moving in loops out of orbit Planets moving in epicycles of forward and backward loops Planets moving in epicycles of forward and backward loops A Planets orbit is faster and passes anothers A Planets orbit is faster and passes anothers 12345687910Exit

15. HINT 80s Retro music Planets moving in loops out of orbit Planets moving in epicycles of forward and backward loops A Planets orbit is faster and passes anothers Correct! next 4. How did Ptolemy explain retrograde motion? 12345687910Exit

16. 4. How did Ptolemy explain retrograde motion? Incorrect Retrograde motion (which was deemed inaccurate) is described as planets moving in loops forward and backward. It was used to describe the fact that since other planets have larger orbits the inner planets pass then up and create the Freeway illusion of a planet receding. back next HINT 12345687910Exit

17. It was an incorrect conclusions and seemed silly back 12345687910Exit

18. 5. Which is Newtons Third law of Motion? HINT Equal areas in equal times Equal areas in equal times Every action has an equal and opposite reaction Every action has an equal and opposite reaction F=ma A body remains at rest until acted upon A body remains at rest until acted upon 12345687910Exit

19. HINT Equal areas in equal times Every action has an equal and opposite reaction F=ma A body remains at rest until acted upon 5. Which is Newtons Third law of Motion? Correct! next 12345687910Exit

20. 5. Which is Newtons Third law of Motion? Incorrect Newtons 3 rd law refers to actions having equal and opposite reactions, just like when two objects that collide and break apart. back next HINT 12345687910Exit

21. Two kittens collide and break apart... back 12345687910Exit

22. 6. Which is Keplers first law? HINT Equal areas in equal times Equal areas in equal times Joan Keplers favorite song Joan Keplers favorite song F=ma All planetary orbits are elliptical All planetary orbits are elliptical 12345687910Exit

23. HINT Equal areas in equal times Joan Keplers favorite song F=ma All planetary orbits are elliptical Correct! next 6. Which is Keplers first law? 12345687910Exit

24. Incorrect All orbits are elliptical, not circles. back next 6. Which is Keplers first law? HINT 12345687910Exit

25. back Shapes similar to circles 12345687910Exit

26. 7. What is mass? HINT Gravitational force on objects Gravitational force on objects Length of an object Weight of an object Matter in an object 12345687910Exit

27. HINT Gravitational force on objects Length of an object Weight of an object Matter in an object Correct! next 7. What is mass? 12345687910Exit

28. Incorrect Mass does not change, it is the matter inside an object, not the weight. back next 7. What is mass? HINT 12345687910Exit

29. Mass does not change regardless where you are. back 12345687910Exit

30. 8. A body remains at rest until acted upon refers to which of Newtons law? HINT 2 nd law 2 nd law 3 rd law 3 rd law 17 th law 17 th law 1 st law 1 st law 12345687910Exit

31. HINT 2 nd law 3 rd law 17 th law 1 st law Correct! next 8. A body remains at rest until acted upon refers to which of Newtons law? 12345687910Exit

32. 8. A body remains at rest until acted upon refers to which of Newtons law? Incorrect Newtons 1 st law relates to Inertia, when you just sit around not doing anything, until you act. back next HINT 12345687910Exit

33. Newton only has 3 laws back 12345687910Exit

34. HINT Mars moons were rough and uneven Mars moons were rough and uneven Jupiters moon was rough and uneven Jupiters moon was rough and uneven Earths moon was rough and uneven Earths moon was rough and uneven Venus moon was rough and uneven Venus moon was rough and uneven 9. Which is one Galileos observation showed our moon not to be special? 12345687910Exit

35. 9. Which is one Galileos observation showed our moon not to be special? HINT Mars moons were rough and uneven Jupiters moon was rough and uneven Earths moon was rough and uneven Venus moon was rough and uneven Correct! next 12345687910Exit

36. 9. Which is one Galileos observation showed our moon not to be special? Incorrect Galileo saw that the moon was not perfect and hence we were not either and definitely no the center of the universe. back next HINT 12345687910Exit

37. The moon itself is not perfect… back 12345687910Exit

38. 10. Lunar Gravity acts on…. HINT The Earth The Earth and its oceans Wolves Earths mammals 12345687910Exit

39. HINT The Earth The Earth and its oceans Wolves Earths mammals Correct! next 10. Lunar Gravity acts on…. 12345687910Exit

40. 10. Lunar Gravity acts on…. Incorrect The moon has such a strong gravitational pull on Earths ocean as it orbits, as well as Earth itself (Earths tidal budges on each side). back next HINT 12345687910Exit

41. The object the moon rotates back 12345687910Exit

42. EXIT TRY AGAIN TRY AGAIN TRY AGAIN TRY AGAIN