Under the street lamp at night, the same high pole, the closer it is to the street lamp, the longer

Observe the diagram below: the closer a pole of the same height is to the street lamp, the shorter its shadow is; So the original title is wrong

So the answer is: false

From the analysis, it can be seen that the farther a pole is from the street lamp, the longer its shadow will be

So the answer is: long

From the picture below, it is easy to get ab cd, so the closer a person is to the street lamp, the shorter, wider and simpler the shadow of the pants believes

So the answer is: the closer

<> from the Shangheng base diagram to the spring is easy to get ab cd, then the closer to the street lamp, the shorter its shadow, so the forest jujube chooses b

The figure under the street lamp is close to the street lamp, and the shadow is short

2) According to general life experience, it can be obtained: the higher you stand, the greater the range of vision, so the answer is: short; Great

Right. The shadow of the pole under the street lamp and the triangle formed by the pole length are similar to the height of the street lamp pole, (the distance to the street lamp + the shadow of the pole length) The two triangles, therefore:

Pole shadow length Pole length = (distance to street lamp + pole shadow length) street lamp height pole shadow length (1 pole length - 1 street lamp height) = distance to street lamp Street lamp height wherein: pole length and street lamp height are unchanged, so the smaller the distance to the street lamp, the smaller the shadow length.

Triangles are similar!

No matter where they are: they are all the same!

The street light is high by all means! The closer the distance, the smaller the angle a: hypotenuse = street lamp height sin a;

Truth: The farther away from the light bulb, the longer the shadow!!

The farther away from the streetlights, the longer the shadows.

Draw it yourself, the farther away from the street lights, the longer the shadows.

...Isn't it a bit idle and boring.

Summary. When a ball moves from far to near the ground, its shadow will change from small to large under the street lamp. This is because the closer the ball gets to the street lamp, the bigger its shadow will be; Conversely, the farther away the ball is from the streetlight, the smaller its shadow will be.

As the ball moves on the ground in the direction of the street lamp, its shadow will also become larger.

Under the street lamp, a ball moves from far to near on the ground, so its shadow changes from small to large. () Kiss is correct.

When a ball moves from far to near the ground, its shadow will change from small to large under the Lumin Swimming Light. This is because the closer the ball gets to the street lamp, the bigger its shadow will be; Conversely, the farther away the ball is from the street lamp, the smaller its shadow will be. When the ball moves on the ground in the direction of the street lamp, its shadow will also grow.

The closer a tree is to the street lamp, the shorter its shadow is, and the farther away from the lamp, the longer its shadow is.

So the answer is: short, long