Seasons and Their Causes
Physics ⇒ Earth and Space Physics
Seasons and Their Causes starts at 6 and continues till grade 12.
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See sample questions for grade 12
A city at 60°N latitude experiences 18 hours of daylight during the summer solstice. Explain why this occurs.
Calculate the maximum difference in solar energy received per square meter at 45° latitude between the summer and winter solstice, assuming the solar constant is 1361 W/m² and neglecting atmospheric effects. (Hint: Use the cosine of the solar elevation angle at noon, which is 68.5° at summer solstice and 21.5° at winter solstice.)
Describe how the angle of sunlight affects the intensity of solar energy received at different latitudes.
Describe the difference between the terms 'solstice' and 'equinox'.
Describe what happens to the length of day and night during the equinoxes.
During the March equinox, which hemisphere is transitioning from summer to autumn?
During which month does the Northern Hemisphere experience the summer solstice?
Explain how the tilt of Earth's axis leads to the occurrence of seasons.
Explain why the equator experiences relatively constant temperatures throughout the year.
Explain why the poles experience six months of daylight followed by six months of darkness.
If the Earth's axial tilt increased from 23.5° to 30°, what would be the effect on seasonal temperature differences?
If the Earth's axis were not tilted, what would be the effect on the seasons?
