"Exploring the Pitch Changes of the Ruler" Sound PPT download

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"Exploring the Pitch Changes of the Ruler" Sound PPT download

Part 1: Importing new lessons

Do students usually like to play with toys?

Today we are also going to play with toys. We are not only competing to see who can play well, but also competing to see who has gained more knowledge while playing. Today we will explore the pitch changes of the ruler.

Exploring the pitch changes of the ruler PPT, part 2: learning new lessons

Activity 1 Review the changes in sound

Turn the ruler: What did you find?

Discussion: What laws of sound have we discovered through the experiment just now?

The relationship between sound and vibration

Think about it:

The level of sound is related to the vibration frequency of the object. If the vibration is fast, the sound will be high; if the vibration is slow, the sound will be low.

Activity 2 Pitch changes of the ruler

Dial the ruler

Please pay attention to solving the following problems while playing:

If we continuously change the length of the ruler extending out of the table, will the pitch of the ruler change when it vibrates?

Exploring the pitch changes of the ruler PPT, part three: conclusion summary

What did you gain from today’s study? Group discussions and exchanges, representatives speaking.

The frequency at which the ruler vibrates is affected by the length of the portion of the ruler that extends beyond the table. The length of this part causes a change in pitch: the longer it is, the lower it is, and the shorter it is, the higher it is.

Exploring the pitch changes of the ruler PPT, Part 4: Homework assignments

According to the ruler's pitch change record table, corresponding to the length of the ruler extending out of the table, color the height of the pitch to make a histogram.

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For more information about the PPT courseware "Sound Exploring the Pitch Changes of the Ruler", please click the Sound ppt Exploring the Pitch Changes of the Ruler ppt tag.

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Update Time: 2024-10-01

This template belongs to science courseware Fourth Grade Science Volume 1, Textbook Edition industry PPT template

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