"Exploring the Reasons for the Sinking and Floating of Potatoes" Sinking and Floating PPT

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"Exploring the Reasons for the Sinking and Floating of Potatoes" Sinking and Floating PPT

Part 1: Measuring the buoyancy force of the hook code in different liquids

A potato sinks and floats in different liquids. Does the buoyancy force it receives change?

Use a hook code instead of a potato to measure its buoyancy in different liquids!

Experimental Note:

①The hook code must be completely submerged.

② When reading, it is necessary to take the hook code out of the liquid level.

③Measure and record at the same time.

④The buoyancy force on the hook = gravity in the air - gravity in the liquid

Exploring the reasons for the sinking and sinking of potatoes PPT, part 2: speculation and verification

Which weighs the same volume of water or concentrated salt water?

Do they weigh the same compared to potatoes of the same volume?

How to compare the weight of potatoes, water, and concentrated salt water of the same volume?

1. Measure the volume of potatoes.

2. Use a measuring cylinder to measure the same volume of water and concentrated salt water as the potato.

3. Use a balance to weigh the same volume of potatoes, water, and concentrated salt water.

Comparison of the weights of potatoes, water and concentrated salt water of the same volume

The weight of potatoes of the same volume is greater than the weight of clear water, so it sinks in clear water;

The weight of potatoes of the same volume is less than the weight of concentrated salt water, so they float in concentrated salt water.

Talk about the relationship between the sinking and floating of objects and liquids.

Objects of the same volume are heavier than the liquid and sink in the liquid;

Objects of the same volume are lighter than liquids and float in liquids.

Exploring the reasons for the sinking and floating of potatoes PPT, part 3: Determining the sinking and floating of plastic blocks

Determine the order of weight of the following objects of the same volume

cork floats on oil

Plastic blocks float on water

Grapes floating on syrup

Exploring the reasons for the sinking and sinking of potatoes PPT, part 4: unit summary

1. What factors are related to the sinking and floating of objects in water?

It is related to the material of the object, whether there is a hollow shape, the amount of water displaced by the object, etc.

2. What factors are related to the sinking and floating of objects in liquids?

Objects of the same volume are heavier than the liquid and sink in the liquid;

Objects of the same volume are lighter than liquids and float in liquids.

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"Exploring the Reasons for the Sinking and Floating of Potatoes" PPT Download:

"Exploring the Reasons for the Sink and Float of Potatoes" Sinking and Floating PPT Download Part One Content: Enter the new lesson to measure the buoyancy force experienced by the hook code in different liquids. Experiment name: Measure the buoyancy force experienced by the hook code in different liquids. Experimental equipment: hook code, beaker, spring tester Force meter, different...

"Exploring the Reasons for the Sinking and Floating of Potatoes" Sinking and Floating PPT Courseware 2:

"Exploring the Reasons for the Sinking and Floating of Potatoes" Sinking and Floating PPT Courseware 2 1. Teaching introduction 1. We already know that potatoes have different sinking and floating conditions in different liquids. It sinks in some liquids and floats in some liquids. From this, we have...

"Exploring the Reasons for the Sinking and Floating of Potatoes" Sinking and Floating PPT Courseware:

"Exploring the Reasons Why Potatoes Sink and Float" PPT courseware on sinking and floating. How can we measure the buoyancy of potatoes in different liquids? Buoyancy = Gravity in the air – Gravity in the liquid. Measure the buoyancy force experienced by the hook in different liquids. Based on the measurement learned in Lesson 6..

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Update Time: 2024-06-25

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