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Basically, you reduce the pressure in the straw. The pressure inside the straw is less than the atmospheric pressure which presses down on the liquid outside.

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Why does one has to suck air when using adrinking straw?

When you suck on a drinking straw, you are creating a lower air pressure inside the straw compared to the outside air pressure. This pressure difference causes the liquid to be pushed up the straw and into your mouth. So sucking on the straw essentially helps to control the flow of liquid into your mouth.


Why does the liquid move up the straw?

The liquid moves up the straw due to air pressure. When you suck on the straw, you create low pressure inside the straw. The higher air pressure outside the straw then pushes the liquid up to balance the pressure difference.


When we suck on a straw the liquid travels up. why?

When you suck on a straw, you create a partial vacuum in your mouth. This decrease in air pressure above the liquid in the straw allows atmospheric pressure to push the liquid up the straw and into your mouth.


When you drink with the help of a straw what forces the liquid up the straw?

When you suck on a straw, you create a vacuum in your mouth, and the atmospheric pressure pushes the liquid up the straw and into your mouth. The difference in pressure between the area inside the straw and outside is what causes the liquid to move upwards.


When you drink a soft drink with the help of a straw what forces the liquid up the straw?

When you suck on a straw, you decrease the air pressure inside the straw, creating a partial vacuum. The higher air pressure on the surface of the liquid outside the straw then pushes the liquid up the straw and into your mouth.

Related Questions

What is helps to suck juice from a drinking straw?

The body part that best helps to suck up juice from a drinking straw is the tongue. When a person sucks liquid through a straw, the jaw muscles and tongue work in conjunction to bring the liquid up.


Why is it difficult to drink liquid with a straw with holes in it?

because when you suck up the liquid, it will just go right through the holes.


Why does one has to suck air when using adrinking straw?

When you suck on a drinking straw, you are creating a lower air pressure inside the straw compared to the outside air pressure. This pressure difference causes the liquid to be pushed up the straw and into your mouth. So sucking on the straw essentially helps to control the flow of liquid into your mouth.


Would it be possible to drink from a straw a mile long?

Yes, but it would have to be tilted, almost flat. You can only drink through it if your mouth is not more than 33 feet higher than the surface of the liquid that you're drinking through the straw.


Does jstin Bieber suck?

Not unless he's drinking with a straw.


Why does the liquid move up the straw?

The liquid moves up the straw due to air pressure. When you suck on the straw, you create low pressure inside the straw. The higher air pressure outside the straw then pushes the liquid up to balance the pressure difference.


When we suck on a straw the liquid travels up. why?

When you suck on a straw, you create a partial vacuum in your mouth. This decrease in air pressure above the liquid in the straw allows atmospheric pressure to push the liquid up the straw and into your mouth.


When you drink with the help of a straw what forces the liquid up the straw?

When you suck on a straw, you create a vacuum in your mouth, and the atmospheric pressure pushes the liquid up the straw and into your mouth. The difference in pressure between the area inside the straw and outside is what causes the liquid to move upwards.


How do you operate a water filter straw to purify water for drinking?

You can put the straw into the water and then suck, the water will come out filtered.


What is the straw colour of the liquid part of a blood?

water man you suck!


When you drink a soft drink with the help of a straw what forces the liquid up the straw?

When you suck on a straw, you decrease the air pressure inside the straw, creating a partial vacuum. The higher air pressure on the surface of the liquid outside the straw then pushes the liquid up the straw and into your mouth.


Why a liquid travels up a straw when you suck on it?

1) Air inside the straw moves 2)Pressure inside decreases 3)Pressure of the atmosphere is greater then the Pressure inside the straw=Liquid moves up the straw!!!