Junior High School Physical Buoyancy What is the difference between immersion and immersion?

Answer: "Immersion" and "immersion" mean basically the same thing, they both include the situation of "immersion".

Detailed analysis:1Immersion and immersion mean basically the same, it may be that part of the volume of the object is in the liquid, or it may be that the entire volume of the object is in the liquid.

2.An object immersed in a liquid, i.e., the entire volume of the object is "submerged" in the liquid. When submerged, V row = V matter.

3.Immersion and immersion are broader than immersion, and they encompass the case of "immersion".

It's not easy to make, I hope you like it, pay attention, thank you!

Summary and analysis of physics experiment questions in Dalian high school entrance examination in recent years.

The relationship between the focal length of a convex lens and the object distance.

Is the heat generated by the current passing through the conductor related to the current 2Relationship between buoyancy and V row 3Imaging of small holes.

2017 1.Water boiling experiment 2Current vs. Voltage Relationship 3The pressure of the liquid is related to the depth and density.

Plane Mirror Imaging 2Factor of the magnitude of buoyancy 3Current vs. resistance.

Water absorbs heat 2Relationship between trunk current and branch current in parallel circuit 3Friction factor.

Convex lens imaging 2Current vs. Voltage Relationship 3Factor of gravitational potential energy.

Convex lens imaging 2Factors that affect the resistance of conductors.

3.Strict wording:

l In physics, immersion refers to the partial entry into the liquid, while immersion refers to the entire entry of the object into the liquid.

l The glass bubble of the thermometer should be immersed in water, and the part of the test tube containing solids should be immersed in water.

l In junior high school, only the scale needs to be estimated.

l The graduation value should be written as 1mm, not as written.

l vertical is equal to perpendicular to, and perpendicular.

l The distinction between subject and object: to say that the image distance is equal to the object distance, it cannot be said that it is the opposite.

4.Do the water boiling experiment, cover the cardboard: 1Reduced heat loss and shorter heating time2The boiling point of water rises.

5.Required questions: sound, vibration, timbre, change of state of matter, etc.

The difference between immersion and immersion is: different parts, different volumes, and different inclusions.

First, some are different.

1. Immersion: Immersion refers to the complete immersion of an object in a liquid (gas).

2. Immersion: Immersion refers to the partial or total entry of an object into a liquid (gas).

Second, the volume is different.

1. Immersion: The volume of liquid (or gas) discharged by the object during immersion is equal to the volume of the object.

2. Immersion: The volume of liquid (or gas) discharged from the object during immersion is less than or equal to the volume of the object.

3. Inclusion is different.

1. Immersion: Immersion is a type of immersion, that is, complete immersion.

2. Immersion: Immersion includes immersion.

Immersion refers to the complete immersion of the object in the liquid (gas), at this time V row = V object, as shown in the figures B, C and D in the figure below.

Immersion refers to the partial entry of an object into a liquid (gas) at which point v discharges v object, as shown in Figure A in the figure below.

Immersion refers to the fact that the entire object is completely in a liquid (or gas), i.e., completely immersed.

Immersion is when part or all of an object is in a liquid (or gas). When we say that an object is immersed in a liquid, we generally mean that the object is not fully immersed in a liquid (or gas).

Differences: 1. The volume of liquid (or gas) discharged by the object during immersion is equal to the volume of the object.

2. The volume of liquid (or gas) discharged by the object during immersion is likely to be less than the volume of the object.

Immersion is complete immersion in water, and there are two types of immersion, one submerged and one partially exposed to the surface.

Experiment 10 **What factors are related to the magnitude of buoyancy.

Immersion: Complete immersion in water.

Immersion: It can be completely immersed in water, or it can be only a little immersion.

Immersion: Same as immersion.

Actually, I don't recommend you to use the above three words.

You can use these few.

Immersion: Full immersion is OK.

Floating: Floating on water, as soon as this word comes out, you should know that the density of this object is less than that of water, and the gravity of the object is less than the buoyancy of water.

Levitation: Suspended in the water, does not fall to the bottom, but also does not rise to the surface. As soon as this word comes out, you should know that the density of this object is equal to the density of water, and the gravity of the empty wheel of the object is equal to the buoyancy of water.

f float = g row is available and only applies to floating or levitation and is only balanced by 2 forces!

This questionThe f-float is not a fixed value and the liquid is uneven, and there is no half-dime relationship

Rather, the V row is not a fixed value.

After immersion, the buoyancy is 500N.

The buoyant force experienced by an object is generated when the upward pressure of water on the object is greater than the downward pressure, and the buoyant force is equal to the difference between the upward pressure and the downward pressure.

When the lower surface of the object is in close contact with the bottom of the container, the object is no longer subjected to the upward pressure of the water, so the object is not buoyant at this time.

According to Archimedes' law, the buoyancy experienced by an object is equal to the gravitational force of the liquid it displaces. When an object is completely submerged, the gravitational force of the liquid it dispels is constant, so the buoyancy is the same regardless of the depth at which it is submerged.

Of course, there is also a premise, that is, the volume of the object cannot be changed.

If it's a balloon, it's different, because the deeper the immersion, the greater the pressure of the liquid, the smaller the volume of the balloon is compressed, and the less buoyancy it has. The general object does not consider the change in volume, so as long as it is submerged, the buoyancy is the same.

In this question, it already indicates "complete immersion", which means that the volume of the water it discharges remains unchanged, and it is in a state of "sinking" rather than "floating".

Experiment 10 **What factors are related to the magnitude of buoyancy.

The difference between immersion and immersion is: different parts, different volumes, and different inclusions.

First, some are different.

1. Immersion: Immersion refers to the complete immersion of an object in a liquid (gas).

2. Immersion: Immersion refers to the partial or total entry of an object into a liquid (base slippery gas).

Second, the volume is different.

1. Immersion: The volume of liquid (or gas) discharged by the object during immersion is equal to the volume of the object.

2. Immersion nucleus: The volume of liquid (or gas) discharged by the object during immersion is less than or equal to the volume of the object.

3. Inclusion is different.

1. Immersion: Immersion is a type of immersion, that is, complete immersion.

2. Immersion: Immersion includes immersion.