Astronomy 101 exam - Study guides, Class notes & Summaries

Astronomy 101 Exam #2 Questions with Complete Solutions

Which of the following are terrestrial planets? a) only earth b) earth, moon, and venus c) mercury, venus, earth, and mars d) mercury, venus, mars, moon, earth, and pluto e) mercury, venus, earth, moon, mars, and ceres Correct Answer-c) mercury, venus, earth, and mars What causes a meteor shower? a) A comet and an asteroid collide. b) Earth runs into a stray swarm of asteroids. c) Earth runs into the debris of an old comet littering its orbit. d) Meteorites are ejected from the M...

Astronomy 101 Exam 1 Questions with Complete Solutions

What is astronomy? Correct Answer-the study of object's and phenomena beyond Earth's atmosphere [goal: to understand the physics of the Universe] What is astrology? Correct Answer-the belief that the position of heavenly bodies, and celestial events correlate with Earthly events and Human events How do you determine your astrological sign? Correct Answer-the position of the Sun in a particular zodiacal constellation on the day you were born [in ancient Greece] due to procession the signs...

Astronomy 101 Exam 2 Questions with Complete Solutions

The region around Earth where the magnetic field traps charged particles is the... Correct Answer-Van Allen Radiation Belts What is the most abundant gas in Earth's atmosphere? Correct Answer-Nitrogen A planetary atmosphere with ozone could protect surface dwellers from... Correct Answer-Ultraviolet Radiation The principal greenhouse gasses in our present atmosphere are: Correct Answer-Water Vapor and Carbon Dioxide As seen from the Moon, how often does the sun rise? Correct Answer-...

Astronomy 101 Exam Questions with All Correct Answers Imagine that from your current location you observe a star rising directly in the east. When this star reaches its highest position above the horizon, where will it be? A. High in the northern sky B. High in the eastern sky C. High in the southern sky D. High in the western sky E. Directly overhead - Answer-C. High in the southern sky How much of the celestial sphere can an Earth observer see at one time? A. Less than half ...

Astronomy 101 Exam Questions and Answers All Correct Which of the following are reasons that gravity is important to star and planet formation? - Answer-Gravity causes clouds to collapse; Once bodies are large enough, gravity pulls them together to create even larger bodies When dust grains first begin to grow into larger objects, this occurs because of - Answer-Collisions between dust grains The direction of revolution in the plane of the Solar System was determined by - Answer-The di...

Astronomy 101 Exam 1 Questions with All Correct Answers What makes a good theory? (scientific method) - ANSWER Testable and Simple What is the process of the scientific method? - ANSWER 1) Observation 2) Model 3) Prediction 1) Universe 2) Astronomy - ANSWER 1) The totality of all space, time, matter, and energy 2) The study of the universe Light years - ANSWER The distance travelled by light in a year 1) Theory 2) Model - ANSWER 1) Ideas/assu...

ASTRONOMY 101 Exam Questions with All Correct Answers . What is the main mechanism by which the lower atmosphere of Earth is heated? a. Sunlight heats Earth's surface and the resultant heat is transferred to the atmosphere by infrared radiation and convective gas motions. b. Conduction carries heat from Earth's interior to the surface where conduction in the lower atmosphere transfers this heat to the higher layers. c. friction between the winds in the atmosphere and the mountain ra...