How does pressure change with depth in the ocean?

Question

5th grade Science! Due Tomorrow!!!!

Please help!!! Freaking out here!!!!!!

Answer 1

in english, the farther you go down, the more water above you, the more water above you equals the more weight per surface area of your body.

Answer 2

I'm an expert on this one (I'ma SCUBA Instructor, so my pupils have to know this)

The pressure you are in at the moment (assuming you are at around sea level, and not up a mountain) is 1 BAR. That is equivalent to 1 kilogramd per square centimeter. If you are not metric, it is 14 lb per square inch.

When you dive pressure increases by an additional Bar for every 10 meters (about 33 feet) of depth.

So at 10m, there is a pressure of 2 Bar
20m it is 3 bar
40m it is 5 bar
and so on.

You don't actually notice the difference when you go diving. You can feel it on your ears, but it is easy to get rid of.

Answer 3

The pressure increases by one atmosphere (the pressure of the air at sea level) for each 33 feet that you descend. This is because the weight of a column of water 33 feet high is approximately equal to the weight of a column of air that stretches from the ground to the top of the atmosphere (about 75 miles up.) Suppose you have a balloon full of 1 cubic foot of air. - and you take it down 33 feet below the surface. - Now the volume of air will amount to only 1/2 cubic foot and your balloon will be half its original size. - If you take it down another 33 feet, your balloon will be under 3 atmosphere's of pressure and will be 1/3 of its original size.

This is one of the things that SCUBA divers have to keep in mind when they dive. - If the diver goes down 33 feet and breathes normally with his tank, with each breath twice as many molecules of air will go into his lungs as compared to what he would breath on the surface. If the diver were to hold his breath and ascent quickly to the surface, he could injure himself badly, because the air will expand to twice its size as he approaches the surface.

Answer 4

Think about it a bit.

When you are five feet underwater, you have five feet worth of water pushing on on you.

When you are 50 feet underwater, you have 50 feet worth of water pushing down on you.

Pressure is just a measure of force, which you may not know. But if pressure equals force, and you have more water pushing down on you the deeper you go into the ocean, you have more water forcing itself on you.

So, as depth increases, do you think pressure increases, decreases, or stays the same?

Answer 5

Your are literally feeling the weight of the water above you. The deeper you go the more water that is above which compresses the water around you. If you go too deep the water pressure will actually crush you.

Answer 6

Try this:

http://www.msu.edu/~radema18/WaterPressureandtheOcean.htm

or other sites that come up if you search on "pressure change ocean". Good luck!