When you blow - you're moving the air that was static over the top of the paper. This lowers the air pressure relative to the air underneath, so it pushes upwards on the piece of paper.
Slope equals rise over run.
Rise over run
Rise over run gives you slope, not points
The measure of the steepness of line expressed as rise over run is called slope.
It could have been either but it must have been easier to put the y-coordinate on top.
If you're talking about slope, it is rise over run. But why is it not the other way run over rise?
He wanted to see them rise.
Rise over run ! Rise _____ run
rise sanju
Slope equals rise over run.
Rise over run
Tissue paper is not very dense. I assume it is one piece and is on a flat surface. When blowing down straight and in the middle, air is able to move through the tissue paper because it is porous. You keep forcing air down and the molecules are bombarding each other and when completely through the tissue paper the fastest way to escape and allow the other molecules through is by escaping under the tissue paper and outwards. This is what lifts the tissue paper.
The slope can be remembered as "rise over run". When the slope is an integer, it means that the rise over run is positive.
rise divided by run: a fraction, rise is y and run is x (you run on a horizontal plane) (you rise on a vertical plane)
Answer To put it simply, by blowing across the piece of paper you are creating low pressure. This is the same way that an airplane wing works. Except on an air craft air is forced underneath the wing to create lox pressure underneath it creating an upwards force called lift which pushes the air craft up. The piece of paper is so light that the low pressure that you are creating over the top of it makes the paper rise toward it. The same thing happens with your shower curtain in the shower sometimes. Did you ever wonder why the shower curtain closes in on you while in the shower? Well now you know. EDIT! - The above answer is the common explanation but it is incorrect. The paper lifts because the airflow sticks to the paper and is directed downward - forcing the paper upward. For the above explanation to be true you should be able to hold a piece of paper horizontally and make it lift by blowing across it - but it doesn't.
expand, rise, increase, swell, blow up, inflate, bulge, billow
when the heat is applied below the snake it is actually the air which makes the snake rise up. When air is heated it becomes lighter and rises up forcing the paper snake to rise up. I will wonder if it also rises in vacuum!