{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Practice Exam 2 2009

Practice Exam 2 2009 - AST101 Section M001 Our Corner of...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
AST101 Section M001: Our Corner of the Universe Exam 2: October 22, 2009 Test Form A Answer all of the following questions on the bubble sheet provided using a #2 pencil. Make sure that your Name, Student ID Number and test form letter are on the answer sheet and that all answers are recorded in the correct position. ALWAYS SELECT THE BEST ANSWER. Each question is worth 1 point. This is a closed-book, closed-note exam and you have the duration of class to complete it. If you have questions, please raise your hand. You are not to talk to or attempt to obtain answers from other students for any reason. Be sure to write and bubble in your ID number and test form letter. DO NOT START THE EXAM UNTIL YOU ARE TOLD TO DO SO! 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Exam II AST101 Fall 2009 2 Choose the best answer from those provided. All questions are worth 1 point. 1. All of the following are steps in the scientific method except: (a) making observations. (b) proposing a model. (c) performing an experiment. (d) revising a model. (e) proving a model. 2. In Ptolemy’s Earth-centered model for the solar system, Venus’s phase is never full as viewed from Earth because it always lies between Earth and the Sun. In reality, as Galileo first recognized, Venus is (a) never full because the sunlit side of Venus never faces directly toward Earth. (b) never full because Earths shadow falls on Venus at the time when it would otherwise be full. (c) full whenever it lies directly between Earth and the Sun. (d) full whenever it is on the opposite side of the Sun from Earth, although we cannot see the full Venus because it is close to the Sun in the sky. 3. Kepler’s third law states that the relationship between orbital period and semi-major axis of the orbit of a planet is P 2 = a 3 . To use this equation for planets orbiting the Sun, P must be expressed in and a must be expressed in . (a) perihelions; aphelions. (b) days; kilometers. (c) years; kilometers. (d) days; astronomical units. (e) years; astronomical units. Use the drawing below to answer the next two questions. The planets in the orbits shown obey Kepler’s laws. A B C
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 10

Practice Exam 2 2009 - AST101 Section M001 Our Corner of...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online