In our solar system, the orbits of our planets are best described as
Based on the diagram, what is the eccentricity of the ellipse in the diagram?
If the pins in the diagram were placed closer together, the eccentricity of the ellipse being constructed would
If Earth rotated from north to south, the North Star would appear to
When observed from a location in New York State for an entire night, the North Star (Polaris) appears to
How would a three-hour time exposure photograph of stars in the northern sky appear if the earth did not rotate
The star Sirius is observed in the evening sky during the month of January. At the end of 3 hours, Sirius will appear to have moved
At which location below would the sun produce an andle of 23.5° relative to an observer's head, at noon on June 21?
On December 21, at which latitude would an observer find the sun directly overhead?
The sun's apparent daily movement across the sky is cause by
At 40 degrees North latitude, how many days a year is the sun directly overhead?
In New York State, to see the sun at noon, one would look towards the
A student in New York State obtained the data below by noting the altitude of the sun at noon for three consecutive months:
Month X- 27.0 degrees
Month Y- 23.5 degrees
Month Z- 25.5 degrees
The Data for month Y were obtained during
To a person located at 43 degrees North latitude, the sun appears to rise due east on
From September 21 to December 20 in the United States, the direction in which the sun sets
In the geocentric model, which motion would occur?
The apparent rising and setting of the sun as seen from Earth are caused by the
In the heliocentric model
Which planetary orbit model allows a scientist to predict the exact positions of the planets in the night sky for many years?
An angle of 23.5 degrees is formed between the axis of Earth and a line
The Foucault pendulum provides evidence of Earth's
On Earth, surface ocean currents rotate clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere because of the
Which statement provides the best evidence that Earth revolves around the sun?
Traditionally, most units of time are based upon
If Earths rate of rotation decreased, there would be an increase in the
How long does Earth take to complete one orbit around the sun?
Units of time are based on Earth's motion relative to other celestial objects. The year is best defined as Earth's motion relative to the
Cities located on the same meridian must have the same
Ship X and Y are sailing along the equator. The difference in local solar time between their locations is 2 hours. What is their difference in longitude?
If a full moon occurs on November 1, the next full moon phase will occur about
In the open ocean, a bulge of water two to three feet high that follows the moon's movement around Earth is a
A high tide occurs at Boston on a certain day at 3 P.M. The next tide may be expected to occur at
During which event does our moon receive the least amount of sunlight?
During which phase of the moon do solar eclipses occur?