Put the same liquid in an iron block of the same size wood block aluminum block, who has more buoyan

All of them are the same size, and as we all know, if the volume is the same, then they are all immersed in the same liquid, so the buoyancy is also the same. Liquid is actually one of the three main forms of matter, because it has no definite shape and is often affected by the container. However, its volume is fixed under constant pressure and temperature.

In addition, the pressure exerted by the liquid on the side of the container is different from that of other objects. This pressure is transmitted in all directions, not only does not decrease, but also increases with the depth of the water, the deeper the water, the greater the water pressure, and the volume of the liquid is fixed in an environment with constant pressure and temperature.

In addition, the liquid exerts pressure on the side of the container and is the same as in other states. This pressure is transmitted in all directions, not only does not decrease, but also increases with depth The deeper the water, then the greater his water pressure, due to the presence of liquid surface tension, the liquid pressure under the surface of the curved liquid is different from the liquid pressure under the surface of the flat liquid, the difference between the two pressures becomes the additional pressure, in the case of convex curved level, the additional pressure is positive, and the liquid pressure under the convex curved level is greater than the liquid pressure at the flat level.

In the case of concave curved liquid surface, the additional pressure is negative, and the liquid pressure under the surface of the concave curved liquid is less than the pressure under the flat liquid surface, and the heat absorbed is directly proportional to the specific heat capacity of the substance, because the heat absorbed by A is larger, which also means that the specific heat capacity of A is larger, two liquids of the same quality raise the same temperature, and the heating time of A is longer, and the absorbed heat is more heated by the same heat source.

The heat absorbed by the two liquids A and B is the same at the same time, and two liquids of the same quality can also be heated and heated at the same time, and the temperature rise of B is larger, and the most important problem is that his shape is not determined, because its shape is fluid, and he is often affected by some containers, so it also leads to the shape of the container and the shape of the liquid.

If you put iron, wood, and aluminum blocks of the same size in the same liquid, who has more buoyancy? Why?

The buoyancy from large to small is: wood, aluminum, and iron. The buoyancy of solids in liquids is affected by density, and the smaller the density, the greater the buoyancy, with the lowest buoyancy of the wood block, followed by the aluminum block, and the largest iron block.

Iron is buoyant. According to Archimedes' principle, the higher the density of different blocks of the same liquid, the greater the buoyancy. Among iron, wood and aluminum, the density of iron is the greatest, and its buoyancy is the greatest.

The buoyancy of the wooden block is high because the smaller the mass, the stronger the buoyancy, and the mass of the wooden block is the smallest.

Block of iron. Because the iron is sunk at the bottom of the water, the volume of the water he drains is the volume of the iron. The wooden block is floating on the water, and the volume of the water it discharges is smaller than the self-generated volume, and because the buoyancy of the object is only related to the gravity of the water, the iron block is larger.

If both blocks are submerged, the buoyancy is equal.

If it is solid, the iron will be buoyant because the iron sinks to the bottom and the wood floats.

If the iron is empty and floats, the one that is heavy with iron and wood will be buoyant.

The buoyancy of the iron block is large, and the volume of the water discharged by the iron block is greater than the volume of the water discharged by the wooden block from the water (Archimedes' principle) from the calculation formula of the buoyancy (Archimedes' principle).

v iron = v wood, the density of iron is greater than wood, so f = mg = v density g (iron) is greater than wood block.

Answer]: A This question cannot directly compare the buoyancy of a wooden block with the buoyancy of an aluminum block using Archimedes' principle. Because although the volume of the wooden block is larger than that of the aluminum block, the volume of its underwater part cannot be directly compared with the volume of the aluminum block due to its floating on the water.

In this question, the same amount of silver (gravity) can be used as a bridge of comparison, and the relationship between buoyancy and gravity in the floating and sinking conditions can be used to draw conclusions. The buoyancy of the wood block in the water is equal to the gravitational force of the wood sliding block The buoyancy of the aluminum block is less than the gravitational force of the aluminum block, and the gravity of the wood block is equal to the aluminum block, so the buoyancy of the wood block is greater than the buoyancy of the aluminum block. Trouble.

Question 1: The wooden block is large. Because the density of wooden blocks is less than that of water, the buoyancy is equal to the gravitational force. And because the density of the iron block is greater than that of water, the gravity is greater than the buoyancy, and because the gravity of the wooden block is equal to the gravity of the iron block, the buoyancy of the wooden block is greater.

Question 2: For the same volume, according to the buoyancy formula, the volume of water discharged by iron is larger than that of wood, so the buoyancy of iron is larger.

f=p*g*v

f: Buoyancy. p: Density of liquid.

g: Local gravitational acceleration.

v: Drain the volume of the liquid (that is, the volume of the liquid when entering the liquid) of the same mass of wood and iron, and put it in water, which may have a high buoyancy (depending on the density of the wood and iron and how much water to drink).

Blocks of wood and iron of the same volume, when placed in water, have a high buoyancy of the pieces of iron.

With the same mass, the wooden block is buoyant, and the wooden block floats up, indicating that the buoyancy is equal to gravity. The iron cannot float, indicating that the buoyancy is less than the specific gravity.

With the same volume, the iron block has a large buoyant. More water is drained from the iron block than is discharged from the wooden block floating on it.

It depends on the topic.

1.If artificially submerging it completely, then.

Because the buoyancy is equal to the gravity of the discharged liquid, and the liquid is water, therefore, the buoyancy is proportional to the volume of the first question, because the density of the wooden block is small, so the volume is large, so the buoyancy of the wooden block is large The second problem, equal volume, so equal buoyancy.

2.If it is natural, then the wood block will float, and the buoyancy will be equal to the gravity, while the iron block will sink, and the buoyancy will be less than the gravity.

The first problem is equal to the mass, so the wooden block is buoyant.

The second problem is that the water discharged by iron is large (completely submerged) and buoyant.

First, if the two are naturally immersed, both are denser than water, they will sink to the bottom, if the two are in close contact with the bottom of the water, there will be no buoyancy, because the essence of buoyancy is the pressure difference force, since there is no water on the bottom of the water to its upward force, of course, there is no so-called buoyancy;

Second, if it is completely submerged without sinking to the bottom, such as tying a rope, then according to the law of buoyancy, it can be seen that the volume of the water discharged by the two is equal, then the buoyancy received by the two is equal;

First of all, the iron and copper blocks that sink to the bottom of the water are subject to the greatest buoyancy.

If the density of the plastic block is greater than that of the water, it will also sink into the water, then the buoyancy of the plastic, iron, and copper blocks will be equal and the buoyancy will be maximum. If the density of the plastic block is less than that of water, then the plastic block floats and the buoyancy experienced is not maximum.

The density of the wooden block is generally less than the water, there are also the wooden blocks that are greater than the water, if the density of the wooden block is greater than the water, then in a short time, the buoyancy of several objects is equal, after a long time, due to the water absorption and expansion of the wooden block, the volume becomes larger, then the wooden block is affected by the buoyancy of the ear orange to the maximum.

If the density of the block is less than that of water and it is floating, then the buoyancy force experienced by the block is not maximum.

Judging method: According to Archimedes' principle, f float = p water discharge g, depending on the volume of the object draining water, the large discharge, the buoyancy is large.