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PSU ASTRO 001 - astro001 quiz1 answer

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---------------------------------------------------------------------------------------------------------------------Use the drawing below to answer the next two question.1. If you could see stars during the day, the drawing above shows what the sky would look like at noon on a given day. The Sun is at the highest point that it will reach on this day and is near the stars of the constellation Gemini. What is the name of the constellation that will be closest to the Sun at sunset on this day?a. Leob. Taurusc. Aries d. Cancer e. Gemini2. This picture shows the position of the stars at noon on a certain day. How long would you have to wait to see Gemini at this same position at midnight?a. 12 hoursb. 24 hoursc. 6 monthsd. 1 yeare. Gemini is never seen at this position at midnight.----------------------------------------------------------------------------------------------------------------------------3. You look to the eastern horizon as theMoon first rises and discover that it is inthe new moon phase. Which pictureshows what the moon will look likewhen it is at its high point in the sky,later that same day?a. Ab. Bc. Cd. De. E4. You are located in the continental U.S. on the first day of October. How will the position of the Sun at noon be different two weeks later?a. It will have moved toward the North.b. It will have moved to a position higher in the sky.c. It will stay in the same position.d. It will have moved to a position closer to the horizon.e. It will have moved toward the west.5. Which sentence best describes why the Moon goes through phases? a. Earth's shadow falls on different parts of the Moon at different times.b. The Moon is somewhat flattened and disk-like. It appears more or less round depending on the precise angle from which we see it.c. Earth’s clouds cover potions of the Moon resulting in the changing phases that we see.d. The sunlight reflected from Earth lights up the Moon. It is less effective when the Moon islower in the sky than when it is higher in the sky.e. We see only part of the lit-up face of the Moon depending on its position relative to Earth and the Sun.6. Imagine you see Mars rising in the east at 6:30 pm. Six hours later what direction would you face (look) to see Mars when it is highest in the sky?a. toward the northb. toward the southc. toward the east d. toward the weste. directly overhead7. Imagine that Earth was upright with no tilt. How would this affect the seasons? a. We would no longer experience a difference between the seasons.b. We would still experience seasons, but the difference would be less noticeable.c. We would still experience seasons, but the difference would be more noticeable.d. We would continue to experience seasons in essentially the same way we do now.8. How does the Sun produce the energy that heats our planet?a. The gases inside the Sun are burning and producing large amounts of energy.b. Gas inside the Sun heats up when compressed, giving off large amounts of energy.c. Heat trapped by magnetic fields in the Sun is released as energy.d. Hydrogen is combined into helium, giving off large amounts of energy.e. The core of the Sun has radioactive atoms that give off energy as they decay. 9. The Big Bang is best described as:a. The event that formed all matter and space from an infinitely small dot of energy.b. The event that formed all matter and scattered it into space.c. The event that scattered all matter and energy throughout space.d. The event that organized the current arrangement of planetary systems.10. Which of the following ranks locations, from closest to Earth to farthest from Earth?a. the Sun, the Moon, the edge of our solar system, the North Star, the edge of our galaxyb. the Sun, the North Star, the Moon, the edge of our galaxy, the edge of our solar systemc. the Moon, the North Star, the Sun, the edge of our solar system, the edge of our galaxyd. the Moon, the Sun, the edge of our solar system, the North Star, the edge of our galaxye. the North Star, the Moon, the Sun, the edge of our galaxy, the edge of our solar system-------------------------------------------------------------------------------------------------------------------------------Consider the six different astronomical objects (A-F) shown below.11. Which of the following is the best ranking (from smallest to largest) for the size of these objects?a. C<F<B<A<D<Eb. E<D<F<A<B<Cc. C<B<A<F<D<Ed. F<C<B<A<D<Ee. None of the above is correct.---------------------------------------------------------------------------------------------------------------------------12. Imagine that Earth’s orbit were changed to be a perfect circle about the Sun so that the distance to the Sun never changed. How would this affect the seasons? a. We would not be able to notice a difference between seasons.b. The difference in the seasons would be less noticeable than it is now.c. The difference in the seasons would be more noticeable than it is now.d. We would experience seasons in the same way we do now.13. What is a star?a. a ball of gas that reflects light from another energy sourceb. a bright point of light visible in Earth’s atmospherec. a hot ball of gas that produces energy by burning gasesd. a hot ball of gas that produces energy by combining atoms into heavier atomse. a hot ball of gas that produces energy by breaking apart atoms into lighter atoms14. Which one property of a star will determine the rest of the characteristics of that star’s life?a. brightnessb. temperaturec. colord. masse. chemical makeup15. Current evidence about how the universe is changing tells us that a. We are near the center of the universe.b. Galaxies are expanding into empty space.c. Groups of galaxies appear to move away from each otherd. Nearby galaxies are younger than distant galaxies.16. Stars begin life as a. a piece off of a star or planet.b. a white dwarf.c. matter in Earth’s atmosphere.d. a black hole.e. a cloud of gas and dust.17. When the Sun reaches the end of its life, what will happen to it?a. It will turn into a black holeb. It will explode, destroying Earthc. It will lose its outer layers, leaving its core behindd. It will not die due to its mass18. If you were in a spacecraft near the Sun and began traveling to Pluto you might passa. planets.b. stars.c. moons.d. two of these objects.e. all of these objects.19. How did the system of planets orbiting the Sun form? a. The planets formed from the same materials as the Sun.b. The planets and the Sun


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