Solar Energy to Earth and the Seasons Chapter 2 Solar Energy to Earth and the Seasons Robert W. Christopherson Tim Schultz

Review: Wavelength and Frequency Which relationship is correct? shorter wavelengths : less energy longer wavelengths : lower frequency shorter wavelengths : lower frequency longer wavelengths : more energy Answer: B

Review: Insolation Which of the following statements is incorrect? Earth’s surface receives more direct radiation at low latitudes than at the poles. The Sun’s rays are less powerful at the poles because they are farther away. Solar energy received at the top of the atmosphere is inversely related to latitude. For an object the size of Earth, the Sun’s rays can be considered parallel. Answer: B

Review: Seasons Which of the following vary with increasing latitude? increasing daylength in summer decreasing daylength in winter decreasing insolation with decreasing sun angle decreasing noon sun angle Answer: D

Review: Seasons Over the course of one year, the Sun’s altitude migrates through 47 degrees everywhere on Earth. in the Northern Hemisphere. at the Equator. only at the Tropics (23.5° N and S). Answer: A

Review: Reasons for Seasons Which of the following is incorrect regarding the seasons? Earth’s orbit takes the northern hemisphere closer to the Sun during summer and farther away during the winter. Earth’s axis is pointed toward the same spot in space throughout the year. Earth’s axis is tilted at an angle of 23.5° away from the plane of the ecliptic. Earth rotates about its axis once every 24 hours, creating days and nights of varying length at varying latitudes. Answer: A