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Which of the following changes increases the overall density of the object?

A: An iron block into a hollow shape - No

B: A submarine fills its ballast tanks with water - Yes

C: A submarine fills its ballast tanks with air - No

D: A fish increases the amount of gas in its swim bladder - No

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2.D

3 The difference in fluid presses created buoyant fore on an object is that when pressure goes up an object stays above the water.

4 An object density will determin whether the object will sink or float in the water because if the density is greater it will sink

5 A fish increases its blatter will change the over density because the more aire the more density or like a submire you can fill it with water

Theo Guess is the best

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2. D

3. The difference in fluid pressure creates buoyant force on an object because the pressure pushes it up

4. if its more dense it will sink

5. changing shape, changing size, more air

- Sophia G

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Question 5: Changing the shape,mass or value of the objects.

Hattie

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How does an object's density determine whether the object will sink or float in water?

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How does an object's density determine whether the object will sink or float in water?

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If the density in an object is greater than the buoyant force, it will sink, but if the density is greater or equal to the buoyant force, it will float.

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Question 5:

1. change the shape

2. change the mass

3. change the volume

Haldey

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When the buoyant force of an object is more than the objects weight

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submarines push air in and out of the submarine to go up and down in the water.

-brandon

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Explain how differences in fluid pressure create buoyant force on an object

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Explain how differences in fluid pressure create buoyant force on an object

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The difference that happens is when the pressure goes up, the object at hand stays above the water, while if the fluid pressure were to go down, the object would sink. - Sawyer

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Question 4: If the objects density is greater than its buoyant fore it will sink.

Hattie

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Fishes can rise and sink because they can change their volume and make them able to float. - Liam

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Question 4: If the object's density is greater than the buoyant force, it will sink & vice versa.

Hadley

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if you have room for air in something then it will float.

-brandon

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If an object is more dense than the air, it will not rise in the air.

-Sydney Busig

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If a object has greater density than its buoyantly force is all around

Hattie

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Question 3: If the object has greater density than its buoyancy, the buoyancy force is all around

Hadley

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An object will sink if the weight is greater than the buoyant force, the object will float if the weight and buoyant force are equal.

- Greta

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For example if a fishes weight is equal to the buoyant force the fish floats in the water

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Submarines increase their mass by taking water making them able to sink and they can push the air out of the ballasts making them float. - Liam

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how the heck does a steel ship float if it is 8 times denser than water?

-brandon

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When the buoyant force of an object is more than the object's weight, it is buoyed up.

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Which of the following changes increases the overall density of the object?

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Which of the following changes increases the overall density of the object?

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A- A block of iron is formed into a hollow shape - Sawyer

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A fish's swim bladder fills with gases from the fish's blood to make it floats. The fish's nervous system controls how much gas is in the swim bladder.

-Riley

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in a submarine, theres a tank that intakes water to make it sinks, and air also like blows water out to make it float.

- Sophia G

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In order for fish to stay at a certain depth in the water, fish can adjust their density a lot like a submarine. - Sawyer

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Question 2: A

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Question 2

answer is A

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Fish have an air bladder that lets them float in the water and must keep swimming to not sink and die.

-Sean

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Submarines stay above water because of something called ballast tanks that can be opened to allow sea water in, and as water is added, the submarine's mass increases, while the volume stays the same. - Sawyer

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A submarine takes in water to sink through its ballast tanks. When a submarine floats to the surface it uses condensed air to push the water out into the ocean again.

-Riley

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Things that are less dense than air such as helium will float in it. - Liam

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Steel can float by changing its shape into a shape that has less overall density than steel. - Liam

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the shape of a boat makes it so that the boats floats on water.

- Sophia G

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If the mass changes, the volume of the object will always stay the same.

Hadley

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If an objects mass changes the volume of the objects will always stay the same

Hattie

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The way that a ship floats on water is what the shape is, so if a boat was just a piece of steel it would sink, but if the boat is an ark shape, it will float. - Sawyer

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Steel is more dense than water but can also float. - Liam

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A submarine uses the ability to release air and pressurize water to be able to change its overall density and either float or sink in the water.

-Sean

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2. d.

3. The difference in fluid pressure created buoyant force on an object is that when the pressure goes up an object stays above water. When the fluid pressure goes down an object will sink.

4. An objects density will determine whether the object will sink or float in water because if the density is greater than the buoyant force it will sink, but if it is greater or equal it will float.

5. A fish increasing its blatter will change the overall density of its body, if you change the shape of an object it will change the overall density of an object, and lastly if you change the fluid pressure it will change the overall density of an object.

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steel is more dense than water but floats easily

- Sophia G

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If a fish weighs 12N and it displaces 12N of water meaning it will float but a duck that only has it's legs and chest in the water will also float because of the subtracted amount of newtons from its body out of the water.

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If an objects mass increases the volume will stay the same.

Hattie

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If an object's mass increases, the volume will stay the same.

Hadley

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We know that objects heavier than the buoyant force of water can't float, so how does a steel boat stay above water? - Sawyer

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A Greek mathematician discovered how Archimedes' force states that the buoyant force on an object in a fluid is an upward force equal to the weight of the fluid that the object takes place of, or displaces in the third century BCE.

- Greta

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If a object floating at the surface of a liquid is pushed further into the liquid, it will displace more of the liquid and will rise to the top because the weight of the object is less than the displacement.

-Sydney Busig

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Ships can float while still being more dense than water because their weight is distributed and spread out which is what allows it to float

-Sean

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Fish adjusts the depth in the water by using thir swim blatter, the inflated blatter decreases the density to keep floating

Theo

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A block of steel will sink, but a ship won't because it is rounded to displace more water than the weight of the ship so that it floats.

-Riley

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A certain volume of helium displaces an equal volume of air that is heavier than itself, mainly because helium floats in air. - Sawyer

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helium floats in air because it is less dense than air, so people use it in balloon.

- Sophia G

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Steel is much more dense than water but boats are made out of it and the boats can float.

-Sean

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If a rock weighs 75 N and it displaces 5N, the buoyant force should be about 50N because it is equal to the weight of displaced water.

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Things that float in water don't float in air because even though they are less dense then the water they are more dense they air. - Liam

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An object's increase in volume will cause a decrease in density. A hollow shape helps an object with higher density to float.

Hadley

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An objects increase in volume will cause a decrease in density.

Hattie

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Steel is over 8 times more dense than water, but cruise ships float.

-Riley

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The reason why an ice cube floats on water but not in the air is because it is less dense than water, but more dense than air (like a LOT of objects). - Sawyer

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if an object is more dense than air, it will not float in air.

- Sophia G

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a helium balloon is less dense than air so it floats in the air.

-brandon

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The gas helium is less dense than air so it floats in the air. An amount of helium displaces an equal amount of air, but air is heavier than helium, so the helium floats.

-Riley

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IT talks about how a submairne is a special kind of ship that is make to sink by how the balsist tanks open up and let sea water in

Theo

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Something filled with helium can float because helium is less dense than air and if the density of the helium and the object are less than air it will float.

-Sean

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If something has more mass per volume then water it will sink. - Liam

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the ice cube is less dense than the water so it floats but it's more dense than air so it sinks in the air.

-brandon

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if an object weighs more than an equal volume of water, it sinks.

Sophia G

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If the weight of an object is equal to the displacement, the object will float on the surface in will be suspended in the liquid.

-Sydney Busig

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Volumes of solids are measured in cubic centimeters, so if a rock weighs more than an equal volume of water, the rock will sink. - Sawyer

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If a rockets weight is greater than the buoyant force, so in that case the rock sinks

-sam

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If an object weighs more than the buoyant force of a liquid, it will sink.

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2. Which of the following changes increases the density of an abject? B.

3. Explain how differences in fluid create buoyant force on an object. The denser the fluid the more buoyant force it will give.

4. How does an objects density determine whether the object will sink or float in water? If it is more dense than water it will sink because there is more weight than water displaced

5. Name 3 methods that can be used to change the overall density of an object.

1. Giving it air vents that will fill it with water

2. Giving it a hollow shape

3. Pressurization

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An ice cube floats in water because it is less dense than water, but doesn't float in the air because it is more dense than the air.

-Riley

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If an object has less density then air it will float in the air.

Hattie

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If an object has less density than air, it will float in the air.

Hadley

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Object can float in water and not in air since the object is more dense than air but is less dense than water.

-Sean

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it explains how buyong up is when something floats on the water it uses a duck as an example

micah

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Fish adjust the depth in the water by using their swim blatter, the inflated blatter decreases the density to keep it floating.

-Eliza Ascher

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ships are make to displace water more water that is nessary for the ship to float

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If there's an object that has a greater weight than the buoyant force of a water spot, the object will shoot up out of the water until the only part of it floating is the weight that is equal to the buoyant force. - Sawyer

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The rock displaces 5 L of water which is equal to 5,000 cm cubed. 5,000 cm cubed of rock weighs more than 5,000 cm cubed of water, so the rock sinks.

-Riley

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the rock sinks because it is more dense than the water it is in but the duck is less so it floats but the fish is the same so it kind of floats.

-brandon

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If the buoyant force is greater than the weight of an object it will float to the surface of the liquid. - Liam

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An object that has less density than water will float on water.

Hadley

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An object that has less density then water will float on water.

Hattie

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You can change density by changing shape(like in a steel boat), changing mass(like in a submarine's ballast tanks), or by changing volume(like in a fish's swim bladder).

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Floating, Sinking, and Density Paragraph

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Floating, Sinking, and Density Paragraph

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An object will float if it is less dense than the liquid but it will sink if the object is more dense than the liquid.

-Sean

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An object in a fluid will sink if its weight is greater than the buoyant force

-sam

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Archimedes' Principle says that the buoyant force of an object in a fluid is an upward force equal to the weight of the fluid that the object takes the place of, or displaces.

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Buoyant force is equal to the weight of displaced water.

-Sydney Busig

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If an object changes its shape it can make it sink or float like the ball of clay vs the ball of clay boat

Theo

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When the buoyant force on an object is greater than the objects weight, the object is buoyed up.

- Sophia G

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If an object weighs more it has more mass per volume then water.

Hattie

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If an object weighs more, it has more mass per volume than water.

Hadley

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it uses fish as an example and its weight

micah

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It explains how waters pushes force onto the ice cube to keep it on the surface - o

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An object that is equal to the buoyant force will float in a liquid. - Liam

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Water puts pressure on all sides of an object. The pressure increases as the depth increases. The water pressure on the bottom is greater than at the top it makes the object float.

- Greta

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If an object is less dense than water it will float in water but if it is more dense than water it will sink in water.

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Submarines can float and sink because they release air and hold the air in, these kinds of ships are capable to change there density depending on what they are wanting to do.

-Eliza Ascher

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If you have an object that only needs half of it's weight to be equal to the buoyant force, then only that much will float in the water, since an object will only float if it's weight is equal to the buoyant force of the water/air. - Sawyer