answersLogoWhite

0


Best Answer

When you suck on a straw the pressure at the top of the straw becomes lower than the pressure at the bottom, which forces liquid up.

User Avatar

Wiki User

7y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why does sucking on a straw make the liquid come up?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How do you make a straw that won't work?

Sabotaging a StrawPutting one or more pinholes in the straw, above the level of the liquid, will allow air to enter the straw at the top, and the liquid will not rise in the straw. To use this "sabotaged straw", merely switch ends (flip it over) so that the pinholes go under the liquid.


Where precisely is plasma found in the blood?

Plasma is the straw-colored liquid that holds the formed elements that make up blood.


Ways to somke weed when you dont have a pipe?

Tin foil pipe, make it into brownies/pastries, putting resin or hash on the end of a (METAL ONLY!!!) paper clip, lighting it, and sucking the smoke with a straw.


How do you make a straw flower?

glue petals on a straw


What happens when you drink through a straw?

This question points up some key misconceptions about what a vacuum is.So you put a straw in your cup of water. If you look down the straw or could look through it, you would see that the level of water inside and outside the straw are exactly the same. This is because the atmosphere is pushing down on the water inside the straw, and it is pushing down equally hard on the water outside the straw. So the pressures are equal.When you suck on the straw, you are decreasing the pressure in your mouth and lowering the pressure of the air in the top of the straw. When that happens, the force of the atmosphere pushing on the water in the glass is higher than the force of gas inside the straw. The atmosphere forces the liquid up the straw into your mouth. So, in essence, you ARE NOT sucking the liquid into your mouth, the atmosphere is pushing it there.This is easily proved by an experiment. Try drinking water from a straw that is more than 20 meters tall. It won't work. At around 20 meters, the massive column of water inside the straw would be pulled down by gravity, with a force greater than the upward force caused by the atmosphere. Even if you completely evacuate the straw with a high-powered pump the water won't make it up the straw. This is why you can't pump water out of a well that is more than 20 meters deep in the ground. Anything deeper than that and you need to use a compressor to pump air at high pressure down into the well, to force the water out (essentially make the upward pressure higher than the atmosphere alone provides), or revert to the tried and true method using buckets.Of course, a similar principle applies with underground or artesian wells. The water there is already under greater pressure and will flow to the surface if given a path.


Assuming that you could survive in outer space without a space suit would it be possible to drink using a straw explain y or why not?

No. The action of a drinking through a straw is that you suck the air out of the straw, and the air pressure on the outside of the cup them pushes the liquid up the straw. If there were no air pressure on the surface of the liquid, then there wouldn't be anything to cause the liquid to rise. However; 1. If there were no air pressure, the liquid would boil and vaporize; there wouldn't be any liquid to drink. 2. In weightlessness, you can't suck water through a straw even IN atmosphere; the liquid forms globules under the influence of its own surface tension. On the Space Station, the astronauts drink from sealed bulbs; sort of like juice pouches. You squeeze the pouch to push the liquid into your mouth.


When did Marvin stone invent the paper straw?

when did marvin stone make the straw


Does sucking dick make you deaf?

No.


When using straw for bedding do you have to separate the manure from the straw to make compost or does it not matter?

It does not matter. The straw will decompose into compost as well as the manure.


Who created the idea of weaving straw and silk to make bonnets?

who created the drinking straw?


When are they going to make the movie diary of a wimpy kid the last straw?

I do not think they are, but Dog Days is going to come out on August 3, 2012.


Can you make gummy bears with a straw?

No.