Question

The figure shows a boy sucking water through the straw. The water goes up the straw because of the air pressure inside the straw because of _____________.
Options:
A) is the same as that in water.
B) is greater than that in water
.C) is less than that in water
.D) All of the above

Please explain the answer you chose...

Answer 1

Answer:

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A straw works because when you suck the air out of the straw it creates a vacuum. This causes a decrease in air pressure on the inside of the straw. Since the atmospheric pressure is greater on the outside of the straw, liquid is forced into and up the straw and into your mouth.

Answer 2

Answer:

The figure shows a boy sucking water through the straw. The water goes up the straw because of the air pressure inside the straw because of _____________.

=>is less than that in water