Why Do Shadows Change Length?

Answer

Shadows change length because of the sun changing dramatically throughout the day. The length of a shadow cast on the ground is proportional to the cotangent of the sun's elevation angle. The angle of the sun is θ relative to the horizon.
Q&A Related to "Why Do Shadows Change Length"
Shadows change length during the day because as the earth rotates on its axis, the angle between the sun and any given point on the earth changes.
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The seasons change due to the earth's elliptical orbit around the sun, combined with the tilt of the earth itself. When the sun's rays have to travel further to reach a section of
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Because the Moon rotates just like the Earth rotates. The Sun moves across the Moon's sky just like the Sun rotates across the Earth's sky, except it takes two weeks to move across
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Chasing shadows has been linked to the dog's predatory behavior and may be normal to a certain extent. The dog sees a subject moving on the floor or the wall and it doesn't realize
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Explore this Topic
Shadows change in length during the day as a result of varying elevations of the sun. As the earth rotates, the sun appears to be moving thereby tilting the angle ...
The shadow lengths change during the day because the Earth spins on its axis, causing different position of the Sun. The sun seems to move because we view at it ...
Shadows change the length in the day because as the globe rotates, the angle that connects the sun and any particular point on the earth alters. Shadows are areas ...
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