How do submarines sink

Holland the sub was called the Holland class and the navy. The sub was armed with two torpedo tubes with whitehead torpedoes. The Holland class was never used in anger.

During WW1, submarines were used, first by the Germans, to sink ships using the element of surprise. Great question, ms. The oldest submarine dates back to ! We encourage you to keep researching to learn more! Thanks for asking, sebastian! You may use Wonderopolis as the author and since we do not list the publish date, you can use the date you accessed the article for information.

If that was today, then use today's date for your citation. Many times they are released off a large ship. However, we encourage you to keep researching this question to learn more. We would love to hear about what you find out. Great question, William! We encourage you to keep researching about submarines at your library and online. There is a lot of history to learn about, too!

It would be interesting to take a ride on a submarine. Maybe one day! Welcome, dasean campbell! Submarines are sometimes used in war situations. You could do more research on submarines at your library. We are so glad that you found this article helpful, Charlie! You could check for a book at your local library. We agree, Nathan! We would like to go on one with windows.

That looks pretty cool! Great Question, Raymond! The Navy does operate a lot of submarines. Also, submarines are used a lot for tourism purposes. Did you know that you could ride in a submarine? Cool, huh? We agree, Ashiyah! Going down deep under water in a submarine can be very scary. We are glad that we now know the science behind it all.

That makes us feel better about giving it a try. We agree, Michael! It looks scary to us, too! The first people to ride in a submarine must have been brave! Great question, Reico! Thanks to the Internet, we can travel and have lots of experiences! We can even take a trip on a submarine!

We are glad that you joined us today! We hope you enjoyed your experience! That's a great question, Xavier! This Wonder may help to explain air pressure. Now, just think about the pressure that water can put on an object. That's a great question, Asia! We think it depends on where the submarine is located and the time of day it is. Some water looks bluer and can reflect the Sun's light better.

Great question, Maddie! Newsreels were popular at the beginning of the 20th Century, when people didn't have computers or TVs. People would go to public places like theaters to find out what was happening in the world. These film reels with the news on them were known as newsreels. Be sure to submit your questions under the "What Are You Wondering" section, so that your friends can Vote for your Wonder! Hello, Ms. It sounds like you all are ready for an adventure into the deep blue sea! Did you know that the actual information for how deep a submarine can go is classified by the Navy.

That means they don't want to public to know just how deep their submarines can go. However, we know it has to be more that feet. Great questions! We are undergoing some spring clearing site maintenance and need to temporarily disable the commenting feature.

Thanks for your patience. Drag a word to its definition. You have answered 0 of 3 questions correctly and your score is:. Want to add a little wonder to your website? Help spread the wonder of families learning together. We sent you SMS, for complete subscription please reply. Follow Twitter Instagram Facebook. How does a submarine work?

What is buoyancy? Related: 27 incredible photos of life on a US Navy submarine Submarines use ballast and trim tanks, which are filled with air or water to submerge or raise the ship. Science Channel, YouTube Some submarines use two hulls—one inside of another—instead of ballast tanks. As the outer hull fills with water, the submarine dives. Brit Lab, YouTube As the water is replaced by air, the submarine resurfaces.

Brit Lab, YouTube This video shows how American submarines dive and resurface using its ballast tanks:. Brett DeVries of In addition, the submarine has movable sets of short "wings" called hydroplanes on the stern back that help to control the angle of the dive. The hydroplanes are angled so that water moves over the stern, which forces the stern upward; therefore, the submarine is angled downward.

To keep the submarine level at any set depth, the submarine maintains a balance of air and water in the trim tanks so that its overall density is equal to the surrounding water neutral buoyancy. When the submarine reaches its cruising depth, the hydroplanes are leveled so that the submarine travels level through the water. Water is also forced between the bow and stern trim tanks to keep the sub level. The submarine can steer in the water by using the tail rudder to turn starboard right or port left and the hydroplanes to control the fore-aft angle of the submarine.

In addition, some submarines are equipped with a retractable secondary propulsion motor that can swivel degrees. When the submarine surfaces, compressed air flows from the air flasks into the ballast tanks and the water is forced out of the submarine until its overall density is less than the surrounding water positive buoyancy and the submarine rises. The hydroplanes are angled so that water moves up over the stern, which forces the stern downward; therefore, the submarine is angled upward.