4.7 (Solar Radiation and Seasons
The axis of Earth in relation to the Sun is tilted at a 23.5 degree slant, as illustrated in the diagram below. If the diagram illustrates Earth's relative position on December 21 of a given year, What part of the earth is experiencing summer?
Australia
What correctly describes the season and length of day at the Tropic of Cancer at the time of year shown in the diagram?
Depends on where the sunlight hits
Earth currently rotates on an axis at an angle of 23.5 degrees. If that axis changed to 20 degrees, so that the axis was closer to vertical, what would be expected to occur?
Less variation within the range of temperatures.
The primary cause of Earth's seasons is what?
The earth's spin axis is tilted with respect to its orbital plane.
Which latitude shown on the diagram below experiences 24 hours of daylight on December 21?
The furthest line on the bottom, closest to the direct hit of the sun.
The graph shows the relative solar energy received at local noon each day of the year at two different locations. Based on the graph, what can be concluded about the latitudes of the two locations?
The latitude that is directly horizontal to the solar radiation receives the most intensity.
What factors are fundamentally responsible for seasons on Earth?
The tilt of the earth's axis.
What area receives the most intense solar radiation at the time of year shown in the diagram, and why?
Tropic of cancer. Direct hit
