"The Secret of Apple Falling" PPT

"The Secret of Apple Falling" PPT

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Hunan Education Edition Fourth Grade Science Volume 2, The Secret of Apple Falling PPT

Part One: Talent Show

If anyone knows the story contained in this topic, please introduce it to the students.

Activity 1 Feel the gravity

What phenomena in life prove the existence of gravity?

Let’s analyze what common rules these phenomena have?

The secret of Apple landing PPT, part 2: experimental verification

1. Use thin wires with weights to fix them on the brackets. Fix the brackets and observe which direction they face after being subjected to gravity?

2. Adjust the tilt angle of the bracket several times, and then observe which direction the weight is facing?

Time limit: 5 minutes

Experimental conclusion: The direction of gravity is always vertically downward.

PPT on the secret of Apple’s landing, part three: guide car mailbox

Through research, Newton discovered that there is a universal gravitational force that attracts each other between any two objects. The gravitational force between two objects on the ground is generally very small; while the earth with a particularly large mass will make us clearly feel the effect of gravity.

The gravitational force of the earth on objects near the earth's surface is called gravity, and the direction of gravity is vertically downward. This is why Apple fell to the ground.

Activity 2 The magnitude of gravity

How much gravity do different objects experience?

Come up with an effective research plan quickly!

The secret of Apple landing PPT, part 4: knowledge consolidation

1. What is gravity?

The gravitational pull of the Earth on objects near the Earth's surface is called gravity.

2. What is the direction of gravity?

straight down

Keywords: Hunan Education Edition fourth grade science PPT courseware for the second volume is free to download, the secret of Apple landing PPT download, .PPT format;

For more information about the "Secrets of Apple's Landing" PPT courseware, please click on the "Secrets of Apple's Landing" ppt tag.

"The Secret of Apple Landing" PPT courseware:

The second volume of science for the fourth grade in the Hunan Education Edition, the secret of the apple falling to the ground PPT courseware, the first part of the content: Concept Concept: The force exerted by objects near the surface of the earth due to the attraction of the earth is called gravity. Everything near the Earth's surface is affected by gravity. The square of gravity...

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