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It's determined by the height (angle above the horizon) of the Sun, and the physical height of the object throwing the shadow.
The height of the Sun at midday is 90 degrees minus the latitude plus the Sun's declination of the day, which varies by up to ±23.5 degrees through the year.
The length of the shadow is the height of the object divided by the tangent of the Sun's height.
Example, a 6 ft object at 50 degrees north on June 21: height of the object is 6 ft, divided by tan(90 - 50 + 23.5) so the shadow has a length of 3 ft.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agothe longest shadow you see in the day is 3\early in the morning and near the sunset...
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Does the length of a sun stick control the distance a shadow moves?
yes the length of the sun stick does control the distance the shadow moves
Why are shadow shorter at midday?
The sun is highest at noon, therefore any shadows are short. When the sun is low, at sunrise and sunset, the shadows will be long.
What did you notice about the shape of the shadow compare to the shape of the object?
The shape does not change, only the length, depending on where the light comes from. Such as on a sundial, and the shadow gets longer or shorter over hours.
Why are shadows shorter in the early morning or at sunset than at midday?
It gets shorter. At mid day it reaches its shortest point, and throughout the rest of the day grows longer. Also, it drifts from west to east. In the northern hemisphere, it points generally north at mid day, swiveling around to the east in the afternoon.
Why does the length and position of my shadow change as i walk towards a lamp post and when we walk away from the lamp post?
The lower the sun in the sky, the longer the shadow. A shadow is always cast in the opposite direction of incident sunlight. When the sun is directly overhead (at noon) the shadow is shortest.
What is the length of your shadow at midday?
[object Object]
If you were standing under a tree when would the shadow of the tree be shortest sunrise midday sunset?
The shadow of the tree would be shortest at midday when the sun is directly overhead. This is because the angle of the sunlight is most perpendicular to the tree, resulting in a shorter shadow. At sunrise and sunset, the angle of the sunlight is lower, creating longer shadows.
When it is the afternoon your shadow will get?
At midday your shadow will be at its shortest as the sun is closer to being overhead and you block less of its light. As the afternoon progresses and it gets further past midday the sun sinks lower in the sky and your shadow gets longer.
What is midday on a sundial?
The shortest shadow on a sundial would be afternoon or Middaay
When do you see the smallest shadow form and why?
Midday because the sun is right above you.
What is tall in the morning small at midday and tall again at late afternoon?
A shadow.
Is shadow lenghts caused by light a scientific law or therory?
Yes - it's simple trigonomety - the shadow length (assuming level ground, the sun at angle a and a vertical object of height h) is h tan a, where a = 0 at midday with the sun directly overhead.
Is a shadow longer at 9pm or midday?
That largely depends on whether or not the sun is up. If the sun is still out a 9pm, a shadow is much longer, then.
What size is a shadow in the middle of the day?
That depends on how big the object is, the time of year, and the location you are. obviously, the size would make a difference, the season determines the tilt of the earth changing the shadow length. if you were in Africa at midday, your shadow would be short since the sun is directly overhead. if you were in Antarctica at noon, the sun would be lower to the ground thus creating a longer shadow.
Why are shadows longer at midday in winter than summer?
i think its to do with the sun, when the sun moves the size of your shadow moves. at midday its the shortest :))
What is smaller than you at midday and bigger than you late in the afternoon?
A shadow. It is smaller at midday when the sun is directly overhead, and longer in the late afternoon as the sun starts to set.
What follows you all day no matter how fast you run but nearly disappears in the midday sun?
Shadow
