Answer each question by selecting the correct blue button. Only the first answer selected is graded.
1. The diagram below shows one model of a portion of the universe. What type of model does the diagram best demonstrate?
2. To an observer in New York State, stars appear to rise in the:
A. a heliocentric model, in which celestial objects orbit Earth
B. a heliocentric model, in which celestial objects orbit the Sun
C. a geocentric model, in which celestial objects orbit Earth
D. a geocentric model, in which celestial objects orbit the Sun
3. The diagram below represents part of the night sky including the constellation Leo. The black circles represent stars. The open circles represent the changing positions of one celestial object over a period of a few weeks. The celestial object represented by the open circles most likely is:
A. a galaxy
B. a planet
C. Earth's Moon
D. another star
4. Base your answer to the following question on the diagram below which shows the Earth's orbit and the partial orbit of a comet on the same plane around the Sun. Which observation is true for an observer at the Earth's Equator at midnight on a clear night for the positions shown in the diagram?
5. The "fuel" of the sun is:
A. The comet is directly overhead
B. The comet is rising
C. The comet is setting
D. The comet is not visible
6. Base your answer to the following question on the diagram below. The diagram represents the Earth at a position in orbit around the Sun, the Sun's rays at solar noon, and the directions to Polaris. Letters A though D represent positions on the Earth's surface. What is the latitude of position A?
A. 23.5 degrees north
B. 47 degrees north
C. 66.5 degrees north
D. 90 degrees north
7. The diagram below shows the rotating Earth as it would appear from a satellite over the North Pole. The time at point X is closest to:
B. 12 noon
D. 12 midnight
8. Base your answer to the following question on the diagram below, which represent two vies of a swinging Foucault pendulum with a ring of 12 pegs at its base. The predictable change in the direction of swing of a Foucault pendulum provides evidence that the:
A. Sun rotates on its axis
B. Sun revolves around the Earth
C. Earth Rotates on its axis
D. Earth revolves around the Sun
9. The diagram below represents two photographs of the Moon, A and B, taken at full moon phase several months apart. The photographs were taken using the same magnification. Each photograph was cut in half and the halves placed next to each other. What most likely caused the difference in the apparent size of the Moon in the photographs A and B?
A. The phases of the Moon changed
B. The Moon expanded
C. The distance for the Earth to the Moon changed
D. The Moon rotated
10. Base your answer to the following question on the diagram below. The diagram shows twelve constellations that are visible in the night sky to an observer in New York State, over the course of a year. Different positions of Earth are represented by letters A through D. The arrows represent the direction of Earth's motion around the Sun. The constellations observed from New York State when the Earth is at position A are different from the constellatons observed when Earth is at position C because:
A. Earth moves in its orbit
B. Earth is tilted on its axis
C. the lengths of day and night are different
D. the stars move around Earth as shown by star trails