What happens when a broken ping pong ball is placed in hot water Why

Nothing happens, because it is broken, the air inside communicates with the outside, and when heated, the air inside does not generate pressure, so the table tennis ball is still the same as before it was put into the water.

If you step on the "broken", there is no change.

If it's just a little suffocated, it can still bulge up when placed in hot water.

I thought there was gas inside the table tennis ball.

The inner sphere is compressed after stepping on it.

When it is placed in hot water, the gas expands when it is heated and expands, and the place where it is held is bulging.

I tried it when I was a kid.

Break or flatten?

If you just step on it, the table tennis ball will slowly bulge up and return to its original shape after being put in hot water.

If it's broken, there shouldn't be any changes.

Dude, whether it's broken or flattened, if you step on it, of course it's a ball of water, if you step on it, it can be restored to its original state, but the elasticity will be weakened....

This is a physical problem, first of all, the plastic shell of the ball is slightly deformed due to sudden heating.

Then the temperature of the air in the ball increases, causing the volume to increase, and then it is in contact with the outside atmospheric pressure to maintain the pressure, and then because there is a certain buoyancy, there will be 3 4 water in the ball, 1 4 floating on the water, all of this is a matter of a few moments

If it's just a deflated step, you can puff it up!

Introduction: Some people say that if you learn physics well, you will not be afraid to go all over the world. There are indeed many places in life that can be solved well if you use some knowledge of physics.

If a ping-pong ball is flattened, it can be restored to its original state by scalding it with hot water. Many people are also curious, what is the principle of this? Let's take a look.

I believe that many people will learn the principle of thermal expansion and cold contraction when they study physics in middle school. Although some people's science grades are indeed not very good, they can still master these simple physics knowledge, and there are many aspects in life that can reflect this principle. For example, when a table tennis ball is stepped on, it can be restored to its original state by putting it in hot water, which mainly adopts the principle of thermal expansion and cold contraction.

Table tennis balls are also gelatinous, the texture is relatively soft, and there is also a certain plasticity, which can have the ability to restore the original shape after deformation. Therefore, the ping pong ball was flattened, and it can be restored to its original state by scalding it directly in hot water. <>

The table tennis ball is made of plastic, and if it happens to be cold in the middle of the day, the temperature of the whole ball will become higher, and the temperature of the gas inside the ball will also rise accordingly, which will make the volume expand, and the concave part will be pushed out by the hot gas of the ball. Even if the table tennis ball is stepped on a little flat, and the air in it becomes very small, the heat of the hot water will be transferred to the ball through heat transfer, so that the gas volume of the ball will increase, and the ball will return to its original state as soon as the volume expands. <>

For example, two water pipes are the same, but if you want to connect one water pipe to another water pipe, then you need to bake it with fire, and then use force to connect the two water pipes together. The production of table tennis also uses the principle of thermal expansion and cold contraction.

The air inside the table tennis ball expands and contracts coldly.

The flattened ping ball is scalded in boiling water, and the air in the table tennis ball expands so it puffs up again.

Using the principle of thermal expansion and cold contraction.

It depends on the degree of the drum, if the drum is very ruthless, then how hot can it not be drummed?

The principle of thermal expansion and cold contraction is used.

Thermal expansion and cold contraction, it also depends on the degree of flattening, too flat no matter how hot it is, it can't get up.

The principle of thermal expansion and cold contraction is utilized.

A unbroken table tennis ball, the quality of the gas in the ball remains unchanged.

When you step on it, it becomes larger, so the density becomes smaller.

A deflated but unbroken table tennis ball will be restored after soaking it in boiling water, which is ( a. The volume of gas in the sphere becomes larger).

There is air in the table tennis ball, when the table tennis ball will be stepped on, when it is soaked in boiling water, thermal expansion will occur, because the table tennis ball becomes soft, and the thermal expansion coefficient is not as large as the air, the table tennis ball will passively expand outward, so the table tennis ball will bulge.

Hope it helps.

a. When the temperature rises, the size of the gas molecules remains the same, so a is wrong;

b. The return of the table tennis ball to its original state in hot water has nothing to do with the gas in the table tennis ball in the non-stop movement, so B is wrong;

c. The return of the table tennis ball in hot water has nothing to do with the molecules that make up the table tennis shell becoming larger in the hot water, so C is wrong;

d. The deflated table tennis ball is put into hot water and puffed up again, because the gas in the ball is heated, the temperature rises, and the intermolecular interval increases, so D is correct

Therefore, choose D

Answer B Analysis: Characteristics of microscopic particles: both mass and volume are small; There is a gap between the particles, and the particles are constantly moving The interval between the microscopic particles changes with the change of temperature, the higher the temperature, the faster the movement speed of the particles, and the larger the base attitude interval between the particles with the sharp oak

Answer: When the deflated table tennis ball is put into hot water, the temperature rises, the movement speed of the gas molecules in the ball becomes faster, and the interval between the molecules becomes larger, so the table tennis ball will bulge again

So choose b Comment: Learn how to analyze and solve problems using the properties of atoms and molecules;And have a solid grasp of the properties of molecules

a. After the ping pong ball is stepped on, it will puff up again when it is put into hot water, because the temperature increases and the intermolecular spacing becomes larger, not because the volume of particles in the gas increases, so the option is wrong

b. After the table tennis ball is stepped on, it will bulge again when it is put into hot water, because the temperature rises and the intermolecular interval becomes larger, so the choice is correct

c. After the ping-pong ball is stepped on, it will puff up again when it is put into hot water, because the temperature rises and the intermolecular spacing becomes larger, not because of the mass of particles in the gas, so the choice is wrong

d. After the ping pong ball is stepped on, it will puff up again when it is put into hot water, because the temperature rises and the interval between molecules becomes larger, not because the particles in the gas decompose into more particles, so the choice is wrong

Therefore, choose B