mt-practice.pdf - 1 In a model of the solar system where...

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1. In a model of the solar system where the Sun is the size of a soccer ball, the planets are all the size of (a) peanuts or smaller. (b) pen points or smaller. (c) soccer balls or smaller. (d) peanuts or larger. (e) soccer balls or larger. 2. In a model of the solar system where the Sun is the size of a soccer ball, you could walk from the Sun to the most distant planet (Neptune) in (a) ten seconds. (b) a minute. (c) about 5 minutes. (d) about an hour. (e) about a year. 3. If the age of the universe were compressed to one year, with the Big Bang on January 1, about when did the Earth form? (a) in January (b) in February (c) in April (d) in September (e) in December 4. Suppose two objects are at different distances from Earth but have the same apparent angular size as seen from Earth. What can we say about the actual sizes of the objects? 1
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5. What is the approximate duration of the time-lapse photograph to the right? 6. You use your fist at arm’s length to determine that a star is one fist above the horizon. The approximate altitude of the star is 7. You observe a star from New Brunswick and determine that its diurnal motion keeps it above the horizon for 16 hours. The star (a) is on the celestial equator. (b) is in the northern celestial hemisphere. (c) is in the southern celestial hemisphere. (d) is at the south celestial pole. (e) could be anywhere on the celestial sphere. 2
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8. The constellation Orion is visible on winter evenings but not summer evenings because of 9. Which of the following is NOT a reason that it is warm in the summer and cold in the winter?
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