ASH SCI 151 Final Exam Set 1 Updated

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ASH SCI 151 Final Exam Set 1 Updated

Please check all question included in this tutorial below

SCI 151 Final Exam Guide Set 1

1. The Sun, Moon, and the Planets follow an imaginary line through the sky called the ecliptic. The reason for the ecliptic is that

2. The Star Betelgeuse is classified as aREDSUPERGIANTTypestar . This star is locatedabout _____640__ Light years from Earth. The color of the star as seen from Earth is ORANGE- RED. It is part of the constellation ORION .

3. Select the best answer. When it is December 21 on Earth.

4. When the Earth lies directly between the Moonand the Sun the Phase of the Moon at that time is called Updatedand it is possible at that time to have an event called a SOLAREclipse.

5. Why does the planet Mercury have many visible craters, yet the Earth’s land areas have few visible craters.

6. The Tides on Earth tend to be weakest, that is lowest change from low to high tide, when the Sun and the Moon

7. When the Earth’s core comprised of metallic elements eventually solidifies this will result in a dramatic decrease of the Earth’s MAGNETICfield compared to today. If the Earth’s rotational speed decreased the Earth magnetic field would DECREASE ( Select increase or decrease)

8. Select the item below that represents increasing distance from the Sun for each celestial body listed

9. Scientifically speaking, Earth Quakes and Volcanoes on our planet are caused by

10. Based on our studies of the Solar system, the planet most likely to harbor life today, not including Earth is____. Also the Jovian moon _____ is also a candidate finding life, due to the likelihood of it having liquid water oceans

11. The Planet Marsatit’s closest distance from the sun is1.38 AU. 1 AU equals 149,597,871 Kilometers?

12.   Gravitation Tidal Forces on the Moon Io comes from the Planet JUPITER and the resultant heating leads to the phenomena of TIDAL HEATING

13. 1 AU (Astronomical Unit) divided by the speed of light is .12 A/U minutes. If the Earth-Jupiter Distance is 5.2 AUs,   it would take 96 minutes for a command signal from Earth to reach a Robotic probe orbiting Jupiter.

14. The estimated distance between the Milky Wayand next nearest major galaxy is approximately 2.5 million Light Years. What is the name of that Galaxy? Andromeda

15. The Milky Way will collide with Andromeda in about 500 Million Years. How fast are these galaxies approaching each other. Give your answer in units of meters / second.111,760 m/s

16. The maximum number of Watts of sunlight that could hit a 20meter x 100 meter plot of land on the equator is approximately 2,720,000 watts.

17. In Miami FLorida, the angle of elevation angle of Polaris is 25degrees.Given the choices below highlight the City where the North star is never visible

18. If you were standing on the Moon’s Equator observing the Earth would the position of the Earth in the Moon’s sky change substantially over a period of 29 days? NO. The phenomena responsible for the orbital period of the Moon exactly equaling the rotation period is called SYNCHRONOUSrotation. 19. Due to friction caused by the Tides, with each passing year

20. Which statement below best describes the Aurora Phenomena

21. Dark Matter particles are assumed to

22. Which one of the following would you consider to be most at odds with respect to the nebula theory of planet formation, considering the following scenarios for stars with planets

23. It is estimated that large global extinction level asteroid, such as the one that destroyed the dinosaurs collides with Earth approximately every

24. Many Asteroids are composed primarily of

25.Which statement about light is true

26. Due to the Doppler Effect, if an object is moving away from you, the light the objects emits will appear to you to be

27. The Hubble Space telescope

28. The Core of the Sun

29. The Nuclear Reaction in the Sun’s core is called

30. The star Polaris is a best characterized as a

31.The Measured Brightness of a star is

32. The center of the Milky Way is

33. As two Galaxies collide the process will likely

34. The Big Bang Model does not explain

35.Which type of telescope works through detecting thelowest energy type ofElectromagnetic Radiation

36.Describe one extremophiles on Earth that we studied in Week-5. Explain why the existence of these organisms increase the possibility of life outside of Earth? (100 words)

37. You have a powerful laser beam that you can use to measure distances to objects near Earth. The laser beam is a short pulse. You aim the laser beam at a far-away object and at time t = 0 you trigger a pulse. You measure the arrival of the return pulse that reflects off the object to be approximately 1300 seconds later, t = 1300 seconds. How far away is the object? Could that object be a planet?

38. Two high luminosity stars named for this example as Gamma and Psi have the same Luminosity and Surface Temperature. Star Gamma is 60 L-Y away from the Sun and Star Psi is 900 L-Y away from the Sun. Which star will appear brighter in our Night Sky, Gamma or Psi? How many times brighter would the brighter star appear compared to the dimmer star?

39. Mars is about 1.5 AU from the Sun and is about 1/9th the mass of Earth. Using Newton’s Law of Gravitation estimate how much weaker the Sun’s Gravitational pull, that is force, is on Mars, Fmars, than it is on Earth, Fearth

40. Estimate the Surface area of the event horizon of a Black Hole of 100 Solar Masses. Assume the black hole does not spin. How does this compare to the Surface area of the Earth?

ASH SCI 151 Final Exam Set 2 Updated

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ASH SCI 151 Final Exam Set 2 Updated

SCI 151 Final Exam

1. The Sun, Moon, and the Planets follow an imaginary line through the sky called the ecliptic. The reason this occurs is that

2. Another name for Sirius is the ____Brightest (Dog) Star________. This star is located __8.6_____ Light years from Earth

3. Select the best answer. When it is Dec 21 on Earth.

4. When the Moon lies directly between the Earth and the Sun the Phase of the Moon at that time is called ____ _____ and it is possible at that time to have an event called a _____ _________

5. Why does the Moon have many visible craters, yet the Earth’s land areas have few visible

6. When the Earth’s core comprised of the metallic elements __Iron_______ eventually solidifies this will result in a dramatic decrease of the Earth’s ___magnetic_________ field compared to today

7. What is the correct order of these planets distance from the Sun , from the closest to furthest

8. Scientifically speaking, Earth Quakes and Volcanoes on our planet are caused by

9. Based on our studies of the Solar system, the planet most likely to harbor life today, not including Earth is __ _______ . Also the Jovian moon___ __________is also a candidate finding life, due to the likelihood of it having liquid water oceans

10. The Planet Neptune at it’sclosestdistance from the sun is_29.8______ AU. 1 AU equals ____149,597,871__________ Kilometers?

11. Gravitational Tidal forces on Earth arise from two celestial bodies, the __Sun_______ and __Moon_____. Gravitation Tidal Forces on the Moon Io comes from the Planet ____Jupiter__________

12. 1 AU (Astronomical Unit) divided by the speed of light is _7.46500531 x 1013m_seconds. The Distance that Light travels in a second is ____Kilometers.

13. The estimated distance between the Milky Wayand the Andromeda Galaxy is approximately _____ ________Light Years

14. The maximum number of Watts of sunlight that could hit a 20 meter x 20 meter plot of land on the equator is approximately ____27,340 watts____.

15. At 50 degrees North latitude the angle of elevation angle of Polaris is always_____degrees.Given the choices below highlight the City where the North star is not visible

16. If you were standing on the Moon’s Equator observing the Earth would the position of the Earth in the Moon’s sky change substantially over a period of 29 days?___ _____. Would the position of the Earth change substantially from any observation point on the Moon over this period? ___

17. The need for a system to conserve the physical quantity called angular ___momentum_ prevents galaxies from collapsing on themselves due to the attraction of Gravity.

18. What is and what causes the Aurora? (150 words)

19. Describe the purpose of Dark Matter and Dark Energy (150 words)

20. What is the volume of a Black Hole of 10 solar masses?__ __

21. Which one of the following would you consider to be most at odds with respect to the nebula theory of planet formation, considering the following scenarios for stars with planets

22. It is estimated that large global extinction level asteroid collides with Earth approximately every

23. A comet is composed primarily of

24.Which statement about light is false

25. Due to the Doppler Effect, if an object is moving away from you, the light the objects emits will appear to you to be

26. The Hubble Space telescope

27. The Core of the Sun

28. The Nuclear Reaction in the Sun’s core is called

29. The star Vega is a best characterized as a

30.The apparent brightness of a star is

31. The center of the Milky Way is

32. As two Galaxies collide the process will likely

33. The Big Bang Model does not explain

34.Which type of telescope works through detecting the lowest energy Electromagnetic Radiation

35.Describe one extremophiles on Earth that we studied in Week-5. Why does the existence of these organisms increase the possibility of life outside of Earth? (100 words)

36. You have a powerful laser beam that you can use to measure distances to objects near Earth. The laser beam is a short pulse. You aim the laser beam at a far-away object and at time t = 0 you trigger a pulse. You measure the arrival of the return pulse that reflects off the object to be approximately 466 seconds later, t = 466 seconds. How far away is the object? Could that object be a planet?

37. Two high luminosity stars named for this example as Gamma and Psi have the same Luminosity and Surface Temperature. Star Gamma is 200 L-Y away from the Sun and Star Psi is 10 L-Y away from the Sun. Which star will appear brighter in our Night Sky, Gamma or Psi? How many times brighter would the brighter star appear compared to the dimmer star?

38. A recently discovered minor planet, named Planet Daisy, orbits the Sun every 450 years. Using Kepler’s Law (remember week-1) What is Planet Daisy’s average distance from the Sun? The planet is in the same plane as the Earth – Sun Plane. What is the distance of closest approach between the Earth and Daisy?

39. A light wave detected through a telescope has a wavelength of 10 centimeters. Calculate the frequency of that wave. It is determined that the light source for this wave is 5 Billion Miles away. How many hours does it take for the light leaving the object to reach the telescope?

40. Suppose Mars was as large as Earth and formed at the same time our Earth formed and had the same general composition. For argument sake assume Mars has a rotational period of 24 hours a day, and that it has zero Axial tilt, and its orbit is the same as it is today.