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

Open in App

Solution

Sucking a drink with a straw:-
The drinking of a liquid drink with the help of a hollow straw is also based on the pressure exerted by the atmosphere on the surface of the liquid.
When sucked through a hollow straw the air pressure inside the straw decreases.
Due to the difference in the pressure of the air inside and outside the straw, the liquid rises into the straw to reach our mouth.
Hence, it's the atmospheric pressure that forces the drink upwards

Suggest Corrections

Similar questions

Question 3

Figure shows a child blowing air with a straw near the opening of another straw which has its other end in a soft drink bottle. It was observed that the level of the soft drink in the straw rises up as soon as air is blown over its open end. Which one of the following best explains the reason for rise in level of the drink?

(a) Blowing of air decreases pressure over the opening of the straw.

(b) The straw of the soft drink bottle collapses when air is blown over its open end

(d) Blowing of air increases the pressure on the surface of soft drink in the bottle.

Q. When we drink a soft drink with the help of a straw, what forces the liquid up the straw?

Q. While drinking a soft drink with the help of a straw the pressure in the straw is ______ and the pressure in the bottle is_______

When we use a drinking straw, what unbalanced force pushes the liquid up the straw? Explain briefly with the help of a diagram. If there is a small hole in the upper part of the straw what difference does it make, if any?

Q. When we drink liquid with a straw ,the air pressure inside the straw

Join BYJU'S Learning Program