"The cup is getting hot" PPT

Description

"The cup is getting hot" PPT

Part One: Learning Objectives

Key Point: Know that heat energy is conducted from one object to another, always from a high temperature part to a low temperature part.

Difficulty: How heat is transferred in solids, and what are the differences in heat transfer capabilities of various objects.

How to use alcohol lamp

1. Take off the lamp cap and put it aside.

2. Use a match to light the alcohol lamp from bottom to top.

3. The flame of the alcohol lamp has three layers: flame core, inner flame, and outer flame.

The outer flame has the highest temperature, so use the outer flame for heating.

4. Cover the alcohol lamp with the lamp cap. After the cover is off, open it and cover it again.

The cup is getting hot PPT, part 2: experiment

Experiment 1 How heat is transferred in solids

Experiment 2 Do different objects have the same ability to transfer heat?

I found it……

Heat always travels from the hotter end to the cooler end.

Heat can be transferred along an object from a part with a high temperature to a part with a low temperature. We call this method of heat transfer

The cup is getting hot PPT, Part 3: Classroom exercises

Let me choose:

1. The direction of heat transfer in a solid is ( )

A. From the cooler end of the object to the hotter end

B. From the hotter end of the object to the cooler end

C. There is no fixed rule

2. Which of the following are good conductors of heat _____ and which are poor conductors of heat _____.

①Glass ②Sand ③Iron wire ④Plastic

⑤Wooden chopsticks ⑥Aluminum bucket ⑦Wooden strips ⑧Cotton

⑨cloth ⑩copper sheet

Let me analyze:

Use an alcohol lamp to heat the center point E of the circle.

(1) The candles at points A, B, C, and D will melt one after another.

Please write down the order in which the candle oil melts at each point:

①(A) ②(C) ③(B, D)

(2) Please provide your explanation for this phenomenon.

Answer: Heat energy is conducted from one object to another, always from a high temperature part to a low temperature part.

Keywords: Qingdao version of fourth grade science PPT courseware for the second volume is free to download, the cup is getting hot PPT download, .PPT format;

For more information about the PPT courseware "The Cup Is Getting Hot", please click on the "The Cup Is Getting Hot" PPT tab.

"The cup is getting hot" PPT courseware:

"The cup is getting hot" PPT courseware Part 1: Learning objectives 1. Through learning, we know that heat energy is transferred from one object to another; heat is always transferred from an object with a high temperature to an object with a low temperature. 2. Ability to use learned knowledge to solve problems in life. Warm reminder...

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Update Time: 2024-09-30

This template belongs to science courseware Qingdao Edition Fourth Grade Science Volume 2 industry PPT template

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