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How long of a shadow would a light of 30 feet off the ground make when shining on an object 10 feet tall that is 20 feet away from the light?
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How is a shadow formed?
A shadow is formed when light is blocked by an object.
Why shadow get smaller and bigger in a scientifically explination?
The size of a shadow has everything to do with placement of the light source, the object, and the background on which the shadow is cast. In general, if the light source is close to the object and the background is further away then the shadow is larger than the object. The opposite is true if the light source is further away. Another part of the equation has to do with angles. This is what we commonly observe happining to shadows at different times of the day; long shadows in the morning and evening and smaller shadows around the middle of the day.
What did you notice about the shape of the shadow compared 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.
How do you get a long shadow?
When the sun is low in the sky, the light from it hits objects and people at a shallow angle. This causes these objects and people to cast a long shadow. Long shadows can also be cast by any light source that is at a shallow angle to an object, such as a flashlight.
Is the length of your shadow the same as your height?
No. Only if the ground is level and the light source is very far away and at a 45 degree angle.
Why do we have shadow?
Shadows are caused when an object is blocking the light causing the shape to appear on the ground in the opposite direction of the source of the light. A shadow only appears in the light or when any shining object faces them. All objects in the way of the light will appear with a shadow in the opposite direction of the source of the light.
What causes the shape of a shadow to change?
when you change the object that creates the shadow by blocking the light, its' shadow will change. or there is another light source shining from a different direction on the object will affect the shadow too.
Why does a shadow form behind you when the sun shines?
A shadow forms when an object blocks the path of light. In the case of the sun shining, the object blocking the light is you, which casts a shadow behind you. The sun's rays are not able to pass through your body, creating the shadow on the ground.
When light Shines on an object in which direction is shadow formed?
A shadow is formed in the opposite direction of where the light source is shining. If the light is coming from the top, the shadow will form below the object on the surface.
Does an luminous object cast a shadow?
because there is no light for it to reflect off
Can an object cause more than 1 shadow?
Yes, an object can cause multiple shadows if there are multiple light sources casting light from different angles. Each light source can create its own shadow of the object.
Where are shadows from?
It has something to do with what light happens to be around that person at the time. If there happens to be a bright light shining on an object, that object's 'shadow' will cast itself on whatever is around it. +++ More simply, the "something" is the object blocking the direct light from the source. The air scatters the light so the shadow is not very dark - on the air-less Moon a shadow is fully dark.
What do you need to see a shadow?
To see a shadow, you need a source of light, an object to cast the shadow, and a surface for the shadow to be projected onto. When the light is blocked by the object, a shadow is created on the surface opposite the light source.
Where is the sun's relationship to a shadow?
When a light (the sun) shines on you or any object, the object is in the way of the sunshine hitting the ground on the opposite side of the object, creating shade, or a shadow.
What will happen when there are multiple light sources shining on an object in regard to shadows?
When there are multiple light sources shining on an object, it may create multiple overlapping shadows depending on the position and intensity of each light source. The shadows may blend or offset each other, resulting in a more complex shadow pattern on the object.
Do fishes have shadows?
Anything that blocks light will cast a shadow. So, if light is shining on a fish, it will have a shadow.
What is the size of the shadow and the distance of the object from the light source when a shadow is formed?
The size of the shadow depends on the size of the object and the distance between the object and the light source. The bigger the object or the closer it is to the light source, the larger the shadow will be. The distance between the object and the light source affects the sharpness and intensity of the shadow.
